WO1999049728A1 - Tuberous root/tuber thickening promoters and crop yield increasing agents - Google Patents

Abstract

Tuberous root/tuber thickening promoters and crop yield increasing agents containing, for example, compounds with an indole skeleton represented by general formula (1): wherein X represents H, Cl or -OCH3; R1 represents -CHO, -CH¿2?CHO, -CH2CN, -COOR?2, -CH¿2COOR2, -CH2CH2COOR2, -CH(CH¿3?)COOR?2, -CH¿2CH2CH2COOR2, -CH(CH¿3?)CH2COOR?2¿, -CH(CH¿3?)CH2CH2COOR?2¿ or -CH¿2?COCOOR?2¿, (wherein R2 represents H, an alkali metal, an alkaline earth metal, C¿1-4? alkyl, a monosaccharide glycoside or an oligosaccharide glycoside. Thus, it is possible to provide tuberous root/tuber thickening promoters and crop yield increasing agents which are highly safe and can be produced on a mass scale.

Description

Tuber and tuber hypertrophy, and crop-producing agent

TECHNICAL FIELD The present invention relates to a tuber (bulb, sukumei) of a plant such as vegetables (crops) and flowers.

Tuber and tuber hypertrophy promoters, which are preferably used to promote root and tuber (underground) enlargement, as well as increasing the number of flowers and ears of various crop fields (plants), tillering, or fruit (fruit, The present invention relates to a crop enhancer that is suitably used to promote the enlargement of seeds and increase the yield.

Background art

 Conventionally, various proposals have been made to increase the yield by enlarging the tubers (bulbs and roots) and tubers (underground stems) of vegetables (crops) (that is, to increase food production). For example, it is known that 5,6-dichloroindole-3-acetic acid, one of the indole skeleton-containing compounds, has a physiological activity (action) that promotes the enlargement of potato tubers (underground stems). (Japanese Patent Publication No. 6-625653, published on August 17, 1994, Japan)

) o

On the other hand, conventionally, as a method of increasing the yield of various crops (plants), for example, a method of creating excellent seeds by using a male sterile agent, or a method of producing a plant by using a dwarfizing agent, Methods for preventing lodging, etc., have been implemented. And, the above-mentioned 5, 6-dichloroindole 3-acetic acid has a physiological activity (action) that increases the weight per grain of wheat (promotes the growth of fruit). (Japanese Patent Publication No. 6-625663). Therefore, it has been proposed to increase the yield of various crops by using the above-mentioned 5, 6-dichroic indole-3-acetic acid as a crop increasing agent.

 However, the reaction for synthesizing the above-mentioned 5,6-dichloroindole-3- (acetic acid) having a substituent at the 5- or 6-position of the indole ring is complicated, and therefore, it is necessary to mass-produce the compound. It is difficult. Further, since the compound is a synthetic compound and does not exist in nature, it is hard to say that it is excellent in safety when it remains in vegetables (crops) such as potatoes and various crops (plants).

 Therefore, there is a need for a tuberous root and tuber hypertrophy promoter that is safe and can be mass-produced, which can increase the yield by increasing the tubers and tubers of vegetables. There is also a need for an agent for promoting tuber and tuber hypertrophy, which is capable of enlarging bulbs of flowers and has excellent safety and can be mass-produced.

 In addition, there is a need for a safe and mass-producing crop enhancer that can increase the yield by promoting the growth of fruits (fruits, seeds) of various crops (plants). There is also a need for a crop enhancer that is safe and can be mass-produced, which can increase the number of flowers and ears of various crops and increase the yield by promoting tillering.

The present invention has been made in view of the above-mentioned conventional problems, and has an object to be used for promoting the enlargement of tuberous roots and tubers of plants such as vegetables and flowers, which can be used safely. To provide tuber and tuber hypertrophy promoters that are excellent in quality and can be mass-produced, and to increase the number of flowers and ears of various crops, tillers, or to increase the yield by promoting fruit hypertrophy. Preferably used It is an object of the present invention to provide a crop enhancer that is safe and can be mass-produced. Disclosure of the invention

 In order to achieve the above object, the inventors of the present application have intensively studied a tuber / tuber hypertrophy promoter and a crop increasing agent. As a result, plants such as vegetables (crops) and flowers, etc., have a compound having a specific molecular structure, that is, a compound having an indole skeleton, a compound having a benzene skeleton, and a compound having a naphthalene skeleton having a specific molecular structure. It has been found that the compound has a physiological activity that promotes the enlargement of the tuberous root (bulb / capital root) and tuber (underground stem), and that the compound is excellent in safety and can be mass-produced. In addition, they have found that an indole skeleton-containing compound having a specific molecular structure has a physiological activity to promote the hypertrophy of fruits (fruits and seeds) of various crops (plants). The effect of increasing the number of grains and ears per ear of a crop, the effect of increasing the number of flowers before blooming, or the effect of promoting tillering, that is, increasing the number of flowers and ears of various crops, The inventors have also found that they have a physiological activity that promotes tillering, and have completed the present invention. Note that known indole skeleton-containing compounds have completely different physiological activities to plants depending on, for example, the substitution position and the number of chlorine atoms. Therefore, even if the molecular structures are similar, it is impossible at all to predict the biological activity of an unknown compound from a known similar compound.

That is, the tuber and tuber hypertrophy promoter of the present invention has the general formula (1)

(In the formula, X represents a hydrogen atom, a chlorine atom or a methoxy group, and R ¹ represents — — CHO group, one CH ₂ CHO group, one CH ₂ CN group, — COOR ² group, — CH 2 COOR ² group , — CH ₂ CH ₂ COOR ² groups, — CH (CH ₃ ) COOR ² groups, — CH ₂ CH 2 CH 2 COOR ² groups, — CH (CH ₃ ) CH 2 COOR ² groups, — CH (CH ₃ ) CH ₂ CH ₂ COOR ² group or —CH ₂ C 0 C 00 R ² group, and R ² is a hydrogen atom, an alkali metal atom, an alkaline earth metal atom, Represents an alkyl group, a monosaccharide glycoside or an oligosaccharide glycoside)

An indole skeleton-containing compound represented by the general formula (2)

(Wherein, R ³ represents a hydrogen atom, an alkali metal atom, an alkaline earth metal atom, an alkyl group having 1 to 4 carbon atoms, a monosaccharide glycoside or an oligosaccharide glycoside. And R ⁴ represents a hydrogen atom, a chlorine atom, a methyl group or a hydroxymethyl group)

A benzene skeleton-containing compound represented by the general formula (3)

(Wherein, R ⁵ represents a hydroxyl group or an amino group)

And at least one compound selected from the group consisting of naphthalene skeleton-containing compounds represented by Further, the agent for promoting tuber root and tuber hypertrophy according to the present invention is characterized in that, in addition to the above constitution, the above compound is an indole skeleton-containing compound.

 Indole skeleton-containing compounds, benzene skeleton-containing compounds, and naphthalene skeleton-containing compounds having the above-mentioned specific molecular structure have a physiological activity to promote the enlargement of tuberous roots and tubers of plants such as vegetables and flowers. are doing. These compounds are safe and can be mass-produced. For example, the reaction for synthesizing the above-mentioned indole skeleton-containing compound having a substituent at the 4-position of the indole ring is relatively simple. Therefore, according to the above configuration, tuber and tuber hypertrophy which is excellent in safety and can be mass-produced can be suitably used to promote the enlargement of tubers and tubers of plants such as vegetables and flowers. An accelerator can be provided.

Furthermore, in addition to the above constitution, the tuber / tuber hypertrophy promoter of the present invention may be such that the indole skeleton-containing compound is a natural compound, or that the indole skeleton-containing compound is 4-hydroxyl. ND-3—It is characterized by acetic acid and its esters. According to the above configuration, since the compound is a natural compound, it is possible to provide a tuber and tuber hypertrophy-promoting agent that is more excellent in safety even when it remains in a plant, for example.

 On the other hand, the crop increasing agent according to the present invention is characterized by containing an indole skeleton-containing compound represented by the general formula (1) in order to achieve the above object.

 The indole skeleton-containing compound having the above specific molecular structure has a physiological activity that promotes the increase in the number of flowers and ears of various crops (plants), tillering, or hypertrophy of fruits (fruits and seeds). I have. Therefore, according to the above configuration, it can be suitably used to increase the number of flowers and ears of various crops, increase tillering, or increase the yield by promoting actual hypertrophy. It is possible to provide a crop increasing agent capable of mass production.

 Further, in addition to the above constitution, the crop increasing agent according to the present invention may be arranged such that the indole skeleton-containing compound is a natural compound, or the indole skeleton-containing compound is indole-3-. Acetic acid, 4-monoindole-3—acetic acid, indole-3-butyric acid, and at least one compound selected from the group consisting of esters of these compounds o

 According to the above configuration, since the compound is a natural compound, it is possible to provide a crop yield enhancer that is more excellent in safety even when it remains in a crop, for example.

 Further, the crop increasing agent according to the present invention is characterized in that it further contains a reducing agent in addition to the above-mentioned constitution.

Crops are usually used when diluted with tap water. Often. According to the above arrangement, since the crop increasing agent contains a reducing agent, the reducing agent reacts with chlorine remaining in tap water used for dilution. Therefore, the chlorine-based compound does not decompose the indole skeleton-containing compound, so that the crop-producing agent exerts its effect sufficiently even at a lower concentration even when diluted with tap water. can do.

Hereinafter, the present invention will be described in detail. First, the tuber and tuber hypertrophy agent will be described.

 The agent for promoting tuber root and tuber hypertrophy according to the present invention comprises: an indole skeleton-containing compound represented by the general formula (D); a benzene skeleton-containing compound represented by the general formula (2); )) Contains at least one compound selected from the group consisting of naphthalene skeleton-containing compounds, that is, the tuber / tuber hypertrophy promoter of the present invention contains the above compound as an active ingredient. However, it is completely unexpected that these compounds have a bioactivity that promotes tuberous root tuber hypertrophy.

Specific examples of the indole skeleton-containing compound represented by the general formula (1) include, for example, indole-3-carboxylic acid, 4-chloroindole-13-caprolubonic acid, 4—Methoxyindole 3—Capillonic acid, indole—3-Acetic acid (3_indolylacetic acid), 4—Clotindole-3-monoacetic acid, 4—Methoxyindole—3—acetic acid, Indole—3—propionic acid, 4—cloindole—3—propionic acid, 4-methoxyindole—3—propionic acid, indole—3—butyric acid, 4 Rhu 3-butyric acid, 4-methoxyindole 3-butyric acid, and alkali metal or alkaline earth metal salts, esters or these compounds of these compounds Glycosides formed by combining these compounds with monosaccharides or oligosaccharides are exemplified. A compound having an ester bond in the substituent represented by R ¹ (and R ² ), that is, an indole skeleton-containing compound having an ester bond is more easily absorbed by plants. The indole skeleton-containing compound having an ester bond exhibits physiological activity by being hydrolyzed and converted into a carboxyl group (carboxylic acid) after being absorbed by a plant.

Further, in the general formula (1), a compound in which the substituent represented by R ² is an alkali metal or an alkaline earth metal, that is, an indole skeleton-containing compound that forms a salt Is more stable, and is excellent in storage and preservation. Specific examples of the alkali metal include sodium and steel. Further, specific examples of the alkaline earth metal include calcium and the like.

When the substituent represented by X in the indole skeleton-containing compound represented by the general formula (1) is a hydrogen atom, the substituent represented by R ¹ (and R ² ) is —CHO Group, — CH ₂ CHO group, _ CH ₂ CN group, one C〇OH group, — CH ₂ COOH group, _ CH ₂ COOCH ₃ group, — CH ₂ CH ₂ COOH group, — CH ₂ CH 2 CH ₂ COOH group And R ² is a monosaccharide glycoside or an oligosaccharide glycoside _ CH ₂ C 00 A compound in which R ² is a natural compound, and a substituent represented by X When is a chlorine atom, a compound in which the substituent represented by R ¹ (and R ² ) is one CH ₂ COOH group and —CH ₂ C 00 CH a group is a natural compound, and When the substituent represented by X is a methoxy group, the compound in which the substituent represented by R ¹ is a CH ₂ CN group is a natural compound. In addition, this It is completely unexpected that natural compounds have the physiological activity of promoting tuber and tuber hypertrophy.

Their to, is a fin d'skeleton-containing compound is a naturally occurring compound, For example, the substituent represented by X is a hydrogen atom, one substituent represented by R ¹ CH 2 C 00 H Group indole-3 —acetic acid, the substituent represented by X is a chlorine atom, and the substituent represented by R ¹ is —CH ₂ COOH group 4 1-closed indole-3 —acetic acid Wherein the substituent represented by X is a chlorine atom, and the substituent represented by R ¹ is a CH ₂ C 00 CH 3 group, methyl—4 chloroindol—3—acetate, represented by X In which the substituent represented by R ¹ is a hydrogen atom, and the substituent represented by R ¹ is a CH ₂ CH 2 COOH group, and the substituent represented by X is a hydrogen atom. And indole-3-butyric acid in which the substituent represented by R ¹ is a —CH ₂ CH 2 CH 2 C 00 H group. For example, 4-monoindole-3-acetic acid and its methyl ester are contained in, for example, immature seeds of edible endow and can be extracted from the immature seeds. In addition, it is relatively easy to mass-produce 4-Lokundole-13-acetic acid and its methyl ester by synthesis.

Examples of the benzene skeleton-containing compound represented by the general formula (2) include, for example, p-chlorophenoxyacetic acid, 2,4-dichlorophenoxyacetic acid, 4-chloro-2-hydroxymethyl-2-acetic acid, In addition, alkali metal salts and alkaline earth metal salts of these compounds, esters, and glycosides obtained by combining these compounds with monosaccharides or oligosaccharides are also included. Specific examples of the naphthalene skeleton-containing compound represented by the general formula (3) include 1-naphthylacetic acid (naphthalene_1-acetic acid) and 1-naphthyl Acetate amide.

 These indole skeleton-containing compounds, benzene skeleton-containing compounds and naphthalene skeleton-containing compounds may be used alone or in combination of two or more. Among the compounds exemplified above, an indole skeleton-containing compound is more preferable. It is more preferable that the indole skeleton-containing compound is a natural compound, and it is particularly preferable that the indole skeleton-containing compound is 4-chloroindol-13-acetic acid and / or an ester thereof. New

 The method for producing the above compound is not particularly limited, and a method of extracting from a plant using a general method, a method of producing by synthesis, or the like can be adopted. Can be. The reaction for synthesizing the indole skeleton-containing compound having a substituent at the 4-position of the indole ring, the reaction for synthesizing the benzene skeleton-containing compound, and the reaction for synthesizing the naphthalene skeleton-containing compound are relatively simple. Yes, a known method can be adopted.

 The agent for promoting tuberous root and tuber hypertrophy according to the present invention contains the above compound as an active ingredient. The above compounds can be used as they are, but if necessary, in order to promote or stabilize the effect, for example, by mixing with various adjuvants such as adjuvants used in agricultural chemicals, It can also be used in various formulations such as powders, granules, condyles, wettable powders, flowables, emulsions, pastes and the like. In other words, the tuberous root and tuber hypertrophy-promoting agent according to the present invention may contain the above-mentioned adjuvant if necessary. Can be.

Examples of the above auxiliary agents include solvents (diluents), emulsifiers, dispersants, Examples include various carriers, various substrates, spreading agents, wetting agents, fixing agents, disintegrating agents, and the like.The above-mentioned various preparations, which are tuber and tuber hypertrophy promoters, can be used as they are. Accordingly, it can be used after being diluted to a predetermined concentration with water. When the above compound has water solubility by forming a salt or the like, the tuber / tuber hypertrophy promoter can be diluted to a predetermined concentration with water without using the above solvent.

 Examples of suitable solvents for preparing solutions, flowables, and emulsions (emulsions) include, for example, aromatic hydrocarbons such as toluene and xylene; methyl alcohol, ethyl alcohol, and a). Alcohols such as isopropyl alcohol, butyl alcohol, and ethylene glycol; ketones such as acetone and methylethyl ketone; amides such as N, N-dimethylformamide; dimethyl Sulfoxides such as sulfoxide; cyclohexane, tetrahydronaphthalene, methylnaphthalene; animal and vegetable oils, fatty acid-fatty acid esters; and the like, but are not particularly limited thereto. One of these solvents may be used alone, or two or more thereof may be used in combination.

As the emulsifier or dispersant, various surfactants can be used ₍ for example, the surfactant is an anionic surfactant such as a higher alcohol sulfate ester salt, or a ionic surfactant such as a quaternary ammonium salt). Surfactants, amphoteric surfactants such as betains, etc., and nonionic surfactants (nonionic surfactants) such as ethers, etc. By using a surfactant, the above compounds can be more effectively used in plants. It becomes easier to be absorbed.

Specific examples of the carrier suitable for supporting the compound include, but are not limited to, clay, kaolin, talc, diatomaceous earth, silica, alumina, calcium carbonate, and the like. , Bentonite (montmorillonite), feldspar, quartz, sawdust, etc., but are not particularly limited. These carriers may be used alone or in a combination of two or more.

 Suitable base materials for converting the above compound into a paste (agent) include, for example, petrolatum, lanolin, synthetic resin, and rubber. Not something. One of these base materials may be used alone, or two or more may be used in combination.

 Plants to which the agent for promoting tuber and tuber hypertrophy according to the present invention can be applied are plants having tubers (bulbs and lodgings) and tubers (rhizome). Specific examples of the plant include potatoes (potatoes), sweet potatoes (sweet potatoes), sweet potatoes, sweet potatoes such as make-up, baron, and dejima, potatoes, potatoes, evening loimo, sassava, carrots, Korean carrots, radish, Vegetables (crops) such as radish, turnip, sugar beet, burdock, rust, edible lily, evening onion, garlic, lotus root, laccasei; lily, tulip, friesia, gladiolus, hyacinth, etc. Bulb Begonias, Tigrisia, Darias, Colors, Anemones, Musculi, Ranunculus, Crocus, Colchicum, Sissen, Iris, Aryum, Catakuri, Ossigaram, Habransas, Groppa, Li Coli, Nerine, Chiono doxa, Tok ゥ, Yunnan Tok ゥ, Hosta, Acapulco, Tuberose, etc .; and other plants, but are not particularly limited.

Examples of the method of using the tuber / tube enlarger, ie, the method of treating plants using the tuber / tube enlarger, include, for example, foliage treatment, soil treatment, immersion treatment, and powder (powder) treatment. Injection treatment or the like can be employed, but is not particularly limited. In other words, planting of tuber root and tuber hypertrophy Examples of the parts used for objects include foliage (including rhizomes), roots (including bulbs and vines), seeds, flowers, fruits, and the like, but are not particularly limited. The use form of the tuber root / tuber hypertrophy promoter may be any means capable of exerting a physiological activity on the plant by being absorbed by the plant. Specifically, for example, spraying Immersion, contact, injection, and the like. In short, the form of use that is most easily absorbed by the plant may be selected according to the type of the target plant, the time of use (purpose of use), and the like.

 The use time of the tuber and tuber thickening promoter is not particularly limited, but when the plant is a vegetable (crop), the time at which the tuber or tuber begins to enlarge is more preferable. When the plant is a flower, it is more preferable that the bulb and the like start to enlarge after the flower blooms. In addition, for example, if a tuber / tuber hypertrophy promoter is used before the bulbs of flowers and plants are separated, the enlargement of the main bulb can be promoted. The use of an agent can promote spheroid hypertrophy.

The amount of the compound used as an active ingredient may be determined according to the composition of the compound, the form of the tuber / tuber hypertrophy promoter, the type of plant to be treated, the treatment method, the time of use (purpose of use), and the like. , but it is not particularly limited - 1 per ares, in the range of 1 0- ⁷ g to 5 g is more preferable. More specifically, when the tuber and tuber hypertrophy accelerator is used as an aqueous solution for the foliage treatment. The accelerator is diluted so that the concentration of the above compound is about 0.001 ppm to 500 ppm. It is more preferable to spray the prepared aqueous solution within a range of 0.1 L to 20 L per are. In addition, when the tuber and tuber hypertrophy promoter is used as an aqueous solution for the immersion treatment, it is more preferable to immerse the plant in the aqueous solution having the above concentration for a certain period of time. By using the tuber and tuber hypertrophy-promoting agent according to the present invention, the function of accumulating starch in tubers (bulbs and lodgings) and tubers (rhizome) in plants is improved, so that these tubers and tubers are not used. It can be enlarged to 1.5 times or more, more preferably 2 times or more by weight. That is, the tuber and tuber hypertrophy promoter according to the present invention has a function as a crop yield enhancer.

 As described above, the tuber and tuber hypertrophy promoter according to the present invention includes an indole skeleton-containing compound represented by the general formula (1), a benzene skeleton-containing compound represented by the general formula (2), and The structure includes at least one compound selected from the group consisting of naphthalene skeleton-containing compounds represented by the general formula (3). The compound has a physiological activity of promoting the enlargement of tuberous roots and tubers of plants such as vegetables and flowers, and is excellent in safety and can be mass-produced. Therefore, according to the above configuration, it is possible to provide a tuber / tuber hypertrophy promoter which is suitably used for accelerating tuber and tuber hypertrophy, and which is excellent in safety and can be mass-produced.

In addition, the tuber / tuber hypertrophy promoter of the present invention has a configuration in which the indole skeleton-containing compound is a natural compound. Further, the tuber / tuber hypertrophy promoter according to the present invention has a configuration in which the indole skeleton-containing compound is 4-chloroindole-13-acetic acid and Z or an ester thereof. According to the above configuration, since the compound is a natural compound, it is possible to provide a tuber / tuber hypertrophy promoting agent which is more excellent in safety even when it is left in a plant, for example. Next, the crop increasing agent will be described.

 The crop increasing agent according to the present invention contains an indole skeleton-containing compound represented by the general formula (1). That is, the crop increasing agent according to the present invention contains the above compound as an active ingredient. It should be noted that the compound, in particular, the natural compound has a physiological activity that promotes the increase of the number of flowers and ears of various crops (plants), the tillering, or the hypertrophy of fruits (fruits, seeds). It is completely unexpected from known analogs.

 As the indole skeleton-containing compound, only one kind may be used, or two or more kinds may be used in combination. More preferably, the indole skeleton-containing compound is a natural compound. Among the compounds exemplified above, the group consisting of indole-3—acetic acid, 4-cycloindole-3—acetic acid, indole-3-butyric acid, and esters of these compounds It is particularly preferred that it be at least one compound selected, most preferred are 4-chloroindole-13-acetic acid and indole-3-butyric acid.

The crop increasing agent according to the present invention contains the above compound as an active ingredient. The above compounds can be used as they are, but if necessary, in order to promote or stabilize the effect, for example, by mixing with various adjuvants such as adjuvants used in pesticides, As illustrated, it can also be used in various formulation forms. That is, the crop increasing agent according to the present invention may contain the above-mentioned auxiliary agent as needed, and therefore, the crop increasing agent can take the above-mentioned various formulation forms. The above-mentioned various preparations, which are crop-harvesting agents, can be used as they are, but if necessary, they can be used after being diluted to a predetermined concentration with water. When the compound is water-soluble, for example, by forming a salt, the solvent must be used. Also, the crop enhancer can be diluted to a predetermined concentration with water.

Meanwhile, Lee emissions doll system phytohormones nature, 1 X 1 0 - ⁸ mol ^{/ L (1 0 - 8 M} ) of about despite being present at very low concentrations, it exerts various effects I have. However, the indole plant hormone can be stably present in a plant, but is decomposed in, for example, tap water by reacting with chlorine remaining in the tap water. Conventionally, spraying common indole-based plant hormones on plants has had little effect because chlorine acts as an oxidizing agent and degrades indole-based plant hormones. Because it was causing it.

 Therefore, when the crop increasing agent according to the present invention is used in a state diluted with tap water, for example, the crop increasing agent preferably contains a reducing agent. Specific examples of the reducing agent include sodium bisulfite and the like. However, any compound that reacts with an oxidizing agent such as chlorine and has no adverse effect on plants can be used. There is no particular limitation, and the amount of the reducing agent used may be set according to the amount of chlorine remaining in the tap water.

 As a result, the compound containing the indole skeleton is not decomposed by chlorine, so that even when diluted with tap water, the effect of the crop enhancer can be sufficiently improved at a lower concentration. Can be demonstrated. It is not practical to dilute the crop-producing agent with water that does not contain chlorine, such as distilled water, because of the high cost. Further, instead of using the reducing agent, the decomposition of the indole skeleton-containing compound can be avoided by diluting the crop yield using the solvent.

The crops to which the crop yield enhancer according to the present invention can be applied include the number of flowers and ears Any plant that can increase the number, increase tillering, or increase the yield of fruits (fruits, seeds) by increasing the yield can be used. Specific examples of the plant include beans such as soybeans, black soybeans, endu beans (sayaendu), red beans, soybeans, and peanuts; wheats such as wheat, barley, and barley; corn and rice. , Ivy, castor, sesame, buckwheat; sugar beet; fruits, such as strawberries, watermelons, apples; so-called vegetables, such as pumpkin and tomato; It is not limited.

 The method of using the crop enhancer, that is, the method of treating the plant with the crop enhancer, is, for example, at the time of sowing, mixing treatment (soil treatment) for soil, For immersion and dust (powder) treatments; in the period after germination, injection treatment (irrigation treatment) for soil and foliage treatment for plants can be used. It is not limited. In other words, the sites where the crop-producing agent is used for plants include foliage (including rhizomes), roots (including bulbs and puddles), seeds (including immature seeds), flowers, fruits, and the like. The selection may be made according to the type and purpose of use, and is not particularly limited.

 The form of use of the crop-harvesting agent may be any means capable of exerting a physiological activity on the plant by being absorbed by the plant. Specifically, for example, spraying, dipping, contacting , Injection and the like. In short, the form of use that is most easily absorbed by the plant may be selected according to the type of the target plant and the time of use (purpose of use).

The use time of the crop-harvesting agent may be set according to the type of plant and the purpose of use, and is not particularly limited. For example, at the time of sowing, when several true leaves are prepared, before flowering, and at the time of flowering , When immature seeds are produced (after flowering) I can do it.

The amount of the active compound to be used may be determined according to the composition of the compound, the form of the crop enhancer, the type of the target plant, the treatment method, the time of use (purpose of use), and the like, and is particularly limited. It is not limited to, a per one are, 1 0- ⁷ g~ 5 g range, more preferable arbitrariness of. More specifically, when the crop enhancer is used as an aqueous solution and used for foliage treatment, the crop enhancer is diluted so that the concentration of the compound is about 0.001 ppm to 500 ppm. More preferably, the diluted aqueous solution is sprayed in a range of 0.1 L to 100 L per are. In addition, when the crop-enhancing agent is used as an aqueous solution for immersion treatment, it is more preferable to immerse the seed or plant (after germination) in the aqueous solution having the above concentration for a certain period of time. Instead of using the above aqueous solution, that is, instead of using the crop enhancer dissolved in water (diluted with water), the crop enhancer may be added to a mixture of water and the solvent as necessary. It can be used in a state of being dissolved (diluted with a mixed solution), or in a state in which the crop enhancer is dissolved in the above-mentioned solvent (diluted with the solvent). The use of the crop-increasing agent according to the present invention can increase the number of flowers and ears of a plant, promote tillering, or promote the actual hypertrophy, so that the yield of various crops can be compared with the case where no crop is used. And can be increased.

As described above, the crop increasing agent according to the present invention is configured to include the indole skeleton-containing compound represented by the general formula (1). The compounds have a physiological activity that promotes the increase in the number of flowers and ears, tillering, or actual hypertrophy of various crops. Further, the compound is excellent in safety and can be mass-produced. Therefore, according to the above-mentioned configuration, it is suitable for increasing the number of flowers and ears of various crops, tillering, or promoting the hypertrophy of fruits to increase the yield. It is possible to provide safe and mass-producible crop enhancers that can be used.

 Further, the crop increasing agent according to the present invention has a configuration in which the indole skeleton-containing compound is a natural compound. Further, the crop-increasing agent according to the present invention is characterized in that the indole skeleton-containing compound comprises indole-3-acetic acid, 4-monoindole-3-acetic acid, indole-3-butyric acid, and The composition is at least one compound selected from the group consisting of esters of these compounds. According to the above configuration, since the compound is a natural compound, even if it remains in the crop, for example, it is possible to provide a crop-enhancing agent which is more excellent in safety.

Moreover, crop sales agent of the present invention, according to the configuration of the _c the a configuration including the to et the reducing agent, also crop sales agent odor when diluted with tap water, than at lower concentrations Therefore, the effect can be fully exhibited.

In addition, the tuber root and tuber hypertrophy promoter and the crop-promoting agent according to the present invention may be various plant growth regulators, fertilizers (sugars, amino acids, organic acids-various minerals, etc.), herbicides, if necessary. , Fungicides, insecticides, acaricides, nematicides, fungicides for agriculture and horticulture, soil fungicides, soil improvers, etc.o Still other objects of the present invention The features, characteristics, and strengths will be more fully understood from the description below. Also, the benefits of the present invention will become apparent in the following description. BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described more specifically with reference to Examples, but the present invention is not limited thereto. It should be noted that Examples 1 to 14 are examples relating to the tuberous root and tuber hypertrophy promoter, and Examples 15 to 22 are examples relating to the crop increasing agent.

 (Example 1)

 The sweet potato was treated using the tuber and tuber hypertrophy promoter of the present invention. First, commercially available sweet potato vines (several vines) whose growth conditions were almost the same were selected and drained so that five leaves remained on the stem from the tip. Next, these tips were planted in a field so that the stems of the three leaves at the base were buried in the soil. The planting interval between the tip portions was about 60 cm.

After a lapse of two months, the above sweet potatoes (several strains) planted in the field were added to the tuberous root and tuber hypertrophy-promoting agent, 4-l-in-l-l-3-acetic acid (hereinafter, 4-C1 IAA). Aqueous solution of methyl-4—cloindole—3—acetate aqueous solution, indole—3—acetic acid (hereinafter abbreviated as IAA) aqueous solution, and aqueous solution of 1-naphthylacetamide A foliage treatment was performed by spraying a predetermined amount of an aqueous solution of p-chlorofunooxyacetic acid, or four of each aqueous solution. 4 one C 1 concentration one IAA aqueous solution, 1 X 1 0- ⁴ mol ZL, 3 X 1 0- ⁵ mol / to, 1 X 1 0- ⁵ mol ZL, and, 1 X 1 0 - ⁶ mol There are four types of ZL. Furthermore, methyl-4 - Kuroroi emissions Doll - 3 - Asete DOO aqueous IAA solution, 1 - Nafuchiruase DOO ami de solution, and the p- Kurorofuwenokishi aqueous acetic acid concentration, 1 X 1 0 - was ⁵ mol ZL. In addition, Satsumaimo (4 strains) in which a predetermined amount of water was sprayed instead of the above aqueous solution was used for comparison (hereinafter, no treatment is performed). Plants are referred to as controls).

 Three months after the foliage treatment, all the sweet potatoes were dug out and the yield, that is, the weight of potatoes (tubes) was measured, and the average weight of sweet potatoes per one (Table 1 shows the weight of one sweet potato) ), The average weight of sweet potato per share (the same shall be referred to as one share weight), and the weight ratio of the sweet potato to the control per share (the same shall be referred to as weight ratio) were calculated. Table of results

Summarized in 1.

 table 1

As is evident from the results in Table 1, the foliage treatment of sweet potato using the tuber and tuber hypertrophy promoter according to the present invention promotes the enlargement of the sweet potato potato, that is, increases the yield. I found out. (Example 2)

The plants were treated using the tuber and tuber hypertrophy promoter of the present invention (first, potted plants were planted (a plurality of pots). Then, toxo plants whose growth states were substantially the same as each other were selected. in a concentration of 3 X 1 0 - by the 1 AA solution, a predetermined amount sprayed by one pot for each solution, - ⁵ mol ZL and 1 X 1 0- ⁵ mol ZL in which two 4 one C 1 In addition, instead of the above-mentioned aqueous solution, a control was made of Toxos which was sprayed with a predetermined amount of water.

 Two months after the foliage treatment, the bulbs (toxoids) of Toxos are dug out, their weights (shown as weight in Table 2) are measured, and the weight ratio to the control (the same as the weight ratio) ) Was calculated. In addition, the same foliar treatment and measurement were performed using Yunnan Tokiso, Kiboushi and Lily instead of Tokiso.

Et al is, for lilies, 4 - instead of C 1 one IAA solution, tuberous • tubers hypertrophy accelerator, concentrations 3 X 1 0 - ⁵ the mole / L Lee emissions Doll one 3 - propionic acid and The same foliage treatment and measurement were performed using indole-3 butyric acid (hereinafter abbreviated as IBA). Table 2 summarizes these results.

Table 2 Plants Tuberous roots Aqueous solution concentration Weight ratio Hypertrophy (mol / L) (g)

 3 X 1 0 2 0.5 0.5 1.69

4-C 1 I A A

 Toxo 1 × 10 1 6.8 1.39 Control

4 C 1 I A A 3 X 1 0 1.7 8 9

 Control 0.9

4-C 1 I A A 3 x 10 1 6.4 1. 3 6

 Contour Nore 14.8

4-C 1-I A A 3 X 10 4 2.2 1. 3 8 Indole-3-Bu α-Pionic acid 3 x 10 4 1.11.35

IBA 3 X 104 1 1.37 7 Control 30.5 As is clear from the results in Table 2, the tuberous root / tuber hypertrophy promoter of the present invention was used to promote Toxo (Yunnan Toxo) and Kiboushi. It was also found that the application of foliage treatment to lilies promotes the enlargement of bulbs and lodgings of these flowers. [Example 3] Acapulco (Liliaceae) was treated using the tuber and tuber hypertrophy promoter of the present invention. First, after abscission in May, select Acapulco are substantially Soroitsu is growing with each other, in early September, to the Acapulco (multiple strains), concentration of 3 X 1 0 ⁵ mol / L, 1 X 1 0 ⁵ mol / L and 1 X 1 0 ⁶ mol ZL is three kinds of 4 C 1 - to IAA solution, not a three strains each solution Soil treatment was performed by spraying a predetermined amount each. In addition, instead of the above aqueous solution, Acapulco (3 strains) in which a predetermined amount of water was sprayed was used as a control.

In late October, Acapulco bulbs (tubes) were dug out, and their weight (indicated as weight in Table 3) and the perimeter of the bulb (indicated as perimeter) were measured. The average weight of the bulb (same as the average weight) and the weight ratio to the control (same as the weight ratio), the average circumference of the bulb (same as the same as the average circumference) and the control The length ratio to the length was calculated. Table 3 summarizes these results.

Table 3

 As is evident from the results in Table 3, it was found that the soil enlargement of Acapulco using the agent for promoting tuber and tuber enlargement according to the present invention promoted the enlargement of the bulbs of Acapulco.

 (Example 4)

Tuberose treatment was carried out using the tuber and tuber hypertrophy promoter of the present invention. First, tuberose bulbs were planted in the field. Next, select the bellows whose growth status is almost the same, and perform flower removal. After that, a foliage treatment was performed by spraying a predetermined amount of an aqueous solution of 41 C 1 -IAA having a concentration of 3 × 10 ⁵ mol / L on the three tube roses. In addition, three tuberoses in which a predetermined amount of water was sprayed instead of the above-mentioned aqueous solution were used as a control opening.

 Two months after the foliage treatment, the bulbs (tubes) of tuberose were dug out and weighed, and the average weight (the same as the average weight) and the weight ratio to the control (the same as the weight) Ratio). Table 4 summarizes the results.

 Table 4

 As is evident from the results in Table 4, it can be seen that by performing the foliage treatment of tuberose with the tuberous root / tuber hypertrophy promoter of the present invention, the bulb enlargement of the tuberous mouth is promoted. understood.

 (Example 5)

Satoimo was treated using the tuber and tuber hypertrophy promoter of the present invention. First, seed potatoes of Sa Toimo the (tubers) and two ready to have approximately equal weight to each other, one of the seed tuber concentration is 3 x 1 0- ⁵ mol / L 4 - C 1 - immersed 3 hours in IAA solution Thereby, the immersion treatment was performed. The other potato was not subjected to the above treatment. Next, these seed potatoes were planted in the field. The planting interval between them was about 60 cm. Then, after 2 months, of seed potatoes which planted in the field, dipped in KoTsuta seed tuber, by concentration is sprayed predetermined amount 4 C 1 IAA aqueous solution is 3 x 1 0 ⁵ mol ZL, foliage Processing was performed. Seed potatoes without immersion treatment were not subjected to foliage treatment.

 Three months after the foliage treatment, all the taros are dug out. The yield, that is, the weight of potatoes (tubes) is measured, and the total weight of satimo (shown as total weight in Table 5) , And the weight ratio with respect to the control (hereinafter, referred to as weight ratio) were calculated. Table 5 summarizes the results.

 Table 5

 As is clear from the results in Table 5, the taro immersion treatment and the foliage treatment using the tuber and tuber hypertrophy promoter according to the present invention promote the taro sweet potato hypertrophy, that is, However, it was found that the yield increased.

 (Example 6)

The radish was treated for 20 days using the tuber and tuber hypertrophy promoter of the present invention. First, on January 28, 20 days, radish seeds (many) were sparsely sown in two 34 cm x 68 cm planters and grown at room temperature. After two months, thinning was performed so that the number of radishes per planter would be about 40. And on February 12th, twenty Since the rhizomes of Japanese radish were in a state just before development, the following treatment was applied to the twenty-day radish planted in one planter, and it was planted in the other planter. The control of the radish on the 20th was used as the control.

That is, one of Bran evening one radish, concentration 3 X 1 0 - by C 1 one IAA aqueous 8 0 0 ml (2 0 ml per one) to sample - ⁵ mol is ZL 4 The foliage treatment was performed. The next day, the foliage treatment against five of Gyotsu was radish, the stems of the radish, concentration is 2 X 1 0 - a ² mol / L 4 - C 1 one The injection treatment was performed by injecting an aqueous solution of IAA at a rate of 10 μl using a syringe. Further, after cutting the tip of the leaves of the radish of about 20 cm from the other five radishes treated with the foliage treatment, the cut portion was adjusted to a concentration of 5 × 1. The immersion treatment was performed by immersion in an aqueous solution of 4-C1-IAA at 0 to ¹⁵ mol / L for 2 hours.

On March 6, all the twenty-day radish was dug out, and the total weight of the twenty-day radish per planter (shown as the total weight in Table 6), and the total weight of the roots (tubes) Radish weight) was measured. Then, the weight of the root per 20-day radish (the same as the average weight) and the weight ratio to the control (the same as the weight ratio) were calculated. Table 6 summarizes these results. Table 6

 As is evident from the results in Table 6, by applying the foliage treatment, injection treatment, and immersion treatment of the radish for 20 days using the tuber and tuber hypertrophy promoter according to the present invention, the radish for 20 days can be obtained. It was found that root enlargement was promoted. It was also found that the combined use of the foliage treatment and the injection treatment or the immersion treatment further promoted the root enlargement of Japanese radish.

 (Example 7)

Spring potatoes (me-quin) were treated using the tuber and tuber hypertrophy promoter of the present invention. First, Nonio emissions based surfactant (US, V Alent trade name: X- 7 7) a in a proportion of 2 0 ppm, the IBA solution the concentration is 3 X 1 0 _ ⁵ mol / L Preparation did. Next, a plurality of potatoes having substantially the same size as each other were prepared, and half of the potatoes were immersed in the aqueous solution for 2 hours to perform an immersion treatment. The remaining potatoes were not subjected to the above treatment. Next, after cutting these potatoes into two pieces (halved), 10 plants (pieces) were treated, 15 were not treated and 15 pieces (pieces). Planted in the field. Ridge width Was 1 m, and the planting interval was 40 cm.

 After about three months (early June), all potatoes were dug out, the yield, that is, the weight of potatoes (tubes) was measured, and the average number of potatoes per share (Table 7) , The average weight of potatoes per share (also referred to as the weight of one share), and the weight ratio of potatoes per control to the control (also referred to as the weight ratio) ) Was calculated. Table 7 summarizes the results.

 Table 7

 As is clear from the results in Table 7, the potato (make-in) immersion treatment using the agent for promoting tuber root and tuber hypertrophy according to the present invention promotes the tuber tuber hypertrophy. It was found that the yield increased by 38%.

 (Example 8)

Autumn potatoes (Dejima) were treated using the tuber and tuber hypertrophy promoters of the present invention. First, a plurality of potatoes having substantially the same size as each other were prepared, and half of the potatoes were immersed in an aqueous solution having the same composition as in Example 7 for 2 hours to perform an immersion treatment. The remaining potatoes were not subjected to the above treatment. The potatoes were then planted on the field on August 28 without cutting 15 potatoes (pieces). Ridge width 1 m, planting The interval was 40 cm.

 After about three months (early February), all potatoes were dug out, the yield, that is, the weight of potatoes (tubes) was measured, and the average number of potatoes per share (table) 8, the average weight of potatoes per share (also referred to as one share weight), and the weight ratio of potato to control per share (same as weight ratio). It was calculated. Table 8 summarizes the results.

 Table 8

 As is clear from the results in Table 8, the potato (Dejima) immersion treatment using the agent for promoting tuber root and tuber hypertrophy according to the present invention promotes the enlargement of the tuber of the potato. However, it was found that the yield increased by 49%.

 (Example 9)

 Autumn potatoes (baron) were treated using the tuber and tuber hypertrophy promoter according to the present invention. First, several potatoes of almost the same size were prepared and divided into six groups.

The potatoes of the first group were cut into two pieces (halved) and then immersed in an aqueous solution having the same composition as in Example 7 for 2 hours. The second group of potatoes are nonionic surfactants The (X 7 7) in a proportion of 2 0 ppm, by immersing 2 hours IBA solution the concentration is 5 x 1 0 ⁶ mol ZL, after the immersion treatment, cut into two (2 etc. Minute). Potato third group, surface active agent (TOHO Chemical Industry Co., Ltd., trade name: S orpol 7 1 5 7) the a proportion of 1 ppm, the concentration is 3 X 1 0 ⁵ mole ZL IBA After immersion treatment by immersion in an aqueous solution for 2 hours, it was cut into two (halved). Potato fourth group includes a surfactant (S orpo 1 7 1 5 7 ) at a rate of 1 0 ppm, by concentration immersed for 2 hours in IBA solution is 3 x 1 0 ⁵ mol / L After the immersion treatment, it was cut into two (halved). The fifth and sixth groups of potatoes were cut in two (halved). These six groups of potatoes were then planted on the field on August 28. The ridge width was 1 m and the planting interval was 40 cm.

For the potatoes of the fifth group, the nonionic surfactant (X-77) was added to 20 ppm at the stage when the aerial part grew to about 10 leaves (September 29). The foliage treatment was performed by spraying an IBA aqueous solution having a concentration of 5 × 10 ⁵ mol / L in a ratio of 120 m 1 / m ² . The sixth potato was not subjected to the immersion treatment and the foliage treatment.

About three months after planting (early December), all potatoes are dug out, and the yield, that is, the weight of potatoes (tubes) is measured, and the average number of potatoes per plant (table) The average weight of potatoes per share (also referred to as the weight of one share) and the weight ratio of potato to control per share (same as the weight ratio) ) Was calculated. Table 9 summarizes the results.

Table 9 Potatoes (baron)

 ·.

7,

 ノ it レ ¾¾¾ '工 小 / 仪 / 展 / も ft ftX. 1 丄 * 怀 Φ ^ ΚΙ¾τ

 Soup enlarger (mol / L) (stock) (pieces) (g)

1 3 X 10 "X- 7 7 2 0 Immersion 8 5.0 4 0 8 1. 0

2 5 X 10 " ⁶ X- 7 7 2 0 Immersion 6 4. 7 4 4 8 1. 5 3

^{3 IBA 3 X 1 0 - 5} Sorpol 7157 1 dip 9 3.8 4 7 7 1.6 3

^{4 3 X 1 0 - 5 Sorpol} 7157 1 0 dip 4 4.3 5 8 6 2.0 1

^{5 3 X 1 0- 5 X- 7} 7 2 0 foliage 5 3.4 3 5 8 1.2 3

6 Control 7 3. 1 2 9 2

As is clear from the results in Table 9, the potato (baron) immersion treatment and foliage treatment using the tuber and tuber hypertrophy-promoting agent according to the present invention promoted the potato tuber hypertrophy, In other words, the yield increased.

 (Example 10)

Japanese radish was treated using the tuber and tuber hypertrophy promoter of the present invention. First, on April 10, seeds (many) of radish (variety: Oshin) were sown at 30 cm intervals and grown. Then, at the stage when the above-ground portion grew to a height of about 10 cm (after 18 days), half of the radish was replaced with a nonionic surfactant (manufactured by Wako Pure Chemical Industries, Ltd., trade name: Tween 8 0) at a concentration of 500 ppm, and a concentration of 5 x 10 — ⁵ mol ZL is sprayed with an aqueous solution of 4 1 C 1 and 1 IAA at a spray rate of 85 m 1 / m ^2. As a result, foliage treatment was performed. The remaining radish, in which a predetermined amount of water was sprayed instead of the above aqueous solution, was used as a control.

About two months after sowing, all radish was extracted, and the yield, that is, the weight of the above-ground part (foliage) and underground part (tube) of the radish was measured. Above-ground average weight of radish (referred to as ground weight in Table 10), average underground weight of radish per unit (also referred to as underground weight), and radish per unit The weight ratio of the aboveground part and the underground part with respect to the troll was calculated. The results are summarized in Table 10. Table 10

 As is evident from the results in Table 10, by performing the foliage treatment of radish using the tuber and tuber hypertrophy-promoting agent according to the present invention, the enlargement of the tuberous root of the radish is promoted. Increased by 62% in the underground.

 (Example 11)

Using the tuber and tuber hypertrophy promoter according to the present invention, Ligustrum lily was treated. First, in mid-September, about 300 bulbs (bulb circumference 6 cm to 7 cm) were planted in two ridges 1.1 m wide and 5 m long. At the stage when the aerial part grew to about 15 to 25 leaves at a height of about 8 cm (January 9), half of the lily of the valley (one ridge) was coated with a nonionic surfactant ( X — 7 7) at a concentration of 20 ppm and a concentration of 5 x 10 — ⁵ mol / L 4 — CI — IAA solution is sprayed at a spray rate of 0.9 L / m ² Thus, foliage treatment was performed. In addition, instead of the above aqueous solution, the remaining grape lily (the other ridge) on which a predetermined amount of water was sprayed was used as a control.

Then, on July 3, all the bulbs were dug out, and the harvest amount, that is, the total weight of the bulbs of tube lilies was measured, and the weight of bulbs per 100 bulbs was measured. The amount (expressed as 100 weights in Table 11) and the weight ratio of the bulb to the control (also expressed as weight ratio) were calculated. The results are summarized in Table 11.

 Table 11

 As is evident from the results in Table 11, by performing the foliar treatment of tebo lily using the tuber and tuber hypertrophy-promoting agent according to the present invention, it is possible to promote the enlargement of the bulb (tube) of the teppori. In other words, the yield increased by 23%.

 (Example 12)

Tulip treatment was performed using the tuber / tuber hypertrophy promoter of the present invention. First, on October 18th, approximately 800 bulbs (variety: Oxford (red flower), bulb circumference 10 cm) were planted at 5 cm intervals (and the aerial part was planted). At the stage of growing to about 23 leaves at a height of about 10 cm (early April), 500 ppm of nonionic surfactant (Tween 80) was added to half of the tulips. a proportion, concentration 4 is 5 x 1 0 one ⁵ mol / L - CI -. by sprayed Te than in the IAA solution 4 0 0 spraying amount of m 1 / m ^2, were subjected to foliage treatment also The remaining tulips, to which a predetermined amount of water had been sprayed instead of the above aqueous solution, were used as controls. In early August, all bulbs (lumps) were dug out, the perimeters of the bulbs of the tulips were measured, and totaled for each size. The results are summarized in Table 12.

 Table 1 2

 As is evident from the results in Table 12, by performing the foliage treatment of the tulip using the tuber and tuber hypertrophy-promoting agent according to the present invention, the enlargement of the bulb (tube) of the tulip is promoted. In other words, it was found that the number of bulbs with a perimeter of 13 cm or more increased.

 (Example 13)

In the same manner as in Example 7, spring potatoes (maquins) were processed. First, including Nonion-based surfactant (X- 7 7) in a proportion of 2 0 ppm, the concentration of IAA solution was prepared a 3 X 1 0 _ ⁵ mol ZL. Next, a plurality of potatoes having substantially the same size as each other were prepared, and half of the potatoes were immersed in the above aqueous solution for 2 hours to perform an immersion treatment. The above potato was not subjected to the above treatment. Then, after cutting these potatoes into two (halved), the treated group had 10 shares (units) and the untreated group had 12 shares (units). Planted in the field. The ridge width was 1 m and the planting interval was 40 cm. After approximately three months (early June), all potatoes were dug out, the yield, that is, the weight of potatoes (tubes) was measured, and the average number of potatoes per share (Table 1) Calculate the potato weight per share (same as the weight of one share), and the weight ratio of potato to control per share (same as the weight ratio). did. The results are summarized in Table 13. Potato (make-in) yield increased by 29%.

 Table 13

 (Example 14)

Satomo treatment was performed in the same manner as in Example 7. First, an IAA aqueous solution containing a nonionic surfactant (X — 77) at a ratio of 20 ppm and having a concentration of 5 × 10 — ⁵ mol / L was prepared. Next, a plurality of taros having substantially the same size were prepared, and half of the taros were immersed in the aqueous solution for 2 hours to perform immersion treatment. The above process was not applied to the remaining satimo. Then, 12 treated taros and 11 untreated taros were planted in the field in early April. The ridge width was 1 m and the planting interval was 30 cm.

After about seven months (early January), all the taros were dug out, and the yield, that is, the weight of potatoes (tubes) was measured, and the weight per plant was determined. The average number of potatoes (denoted as one share in Table 14), the average weight of taro per share (also denoted as one share weight), and the control of the taro per share The weight ratio (same as the above) is calculated. The results are summarized in Table 14. Taro yields increased by 22%.

 Table 14

 (Example 15)

 The evening foliage treatment was performed using the crop increasing agent according to the present invention. First, on May 22nd, ヮ evening seeds (many) were directly sown in the field and raised. After that, on July 14th, three plants, each of which grew to a height of about 90 cm and had not yet flowered, were selected as two groups (six in total).

Then, the Wa data of one group, by concentration to sprayed Te than in spraying amount of 1 X 1 0 ⁵ mol / L in a 4 C 1 IAA (crop sales agent) aqueous solution 4 0 LZ a, Foliage treatment was performed. In addition, for the other group, water was sprayed at a spraying rate of 40 LZa instead of the above aqueous solution to control.

On October 15th, the above-mentioned potatoes were harvested, and the harvest amount, that is, the number of seeds (seed) was counted. The results are summarized in Table 15. Table 15

As is evident from the results in Table 15, it was found that performing the foliage treatment of the evening using the crop-producing agent according to the present invention promoted the increase in the number of evening flowers.

 (Example 16)

 Endow foliage treatment was carried out using the crop yield enhancer according to the present invention. First of all, in mid-January, the seeds of endou (variety: Azumino 30 day silk pod PMR)

(Many) were sown and grown in a field with a ridge width of 90 cm so that the inter-strain was 20 cm. After a lapse of 30 days, a fertilizer (manufactured by Shinto Kagaku Kogyo Co., Ltd.) was administered to the field at a ratio of 50 g / 50 to fertilize the grown endow.

 Five months after sowing, when the flowers began to grow, Endo was divided into two groups. Then, the ending of one group (2

Against four strains), concentration of 5 X 1 0 - by spraying Te than in spraying amount of ⁵ mol / L is 4 one C 1 one IAA water solution 4 0 L / a, Gyotsu the foliage treatment Was. In addition, the other group's endowment (16 strains) was Instead, water was sprayed at a spraying rate of 40 L / a to control.

 Harvesting the above-mentioned window in early May, the harvested amount of the snowy dough, that is, the weight (g) of the snowy dough per plant and the weight ratio to the control (hereinafter referred to as the control ratio) ) Was measured. The results are summarized in Table 16.

 Table 16

As is evident from the results in Table 16, it was found that by performing the foliage treatment on the endou using the crop-producing agent according to the present invention, the thickening of Sayaendu was promoted and the yield was increased.

 (Example 17)

Wheat was treated using the crop increasing agent according to the present invention. First, wheat seeds were divided into seven groups of 250 g each. 1 February 1 5 days, wheat first group, concentration by immersing 5 hours 4 _ C 1 one IAA solution is 1 X 1 0- ⁵ mol ZL, has been dipped. On the same day, a second group of wheat was immersed in an aqueous solution of IBA (crop-growth enhancer) at a concentration of 1 × 10 mol / L for 5 hours. A non-ionic surfactant (manufactured by Toho Chemical Industry Co., Ltd., trade name: Sorbon T—80) was added to each of the above two aqueous solutions at a level of 20 pp. m.

Next, on the same day, wheat from the above seven groups was sown in a field of one plot (7.4 m ² ), and a field test was performed.

Then, on February 19th, the concentration of 5 X 10 — ⁵ mol 7 L for a third group of wheat whose aerial part grew to a height of about 10 cm 4 — C 1

-Foliage treatment was performed by spraying the IAA aqueous solution at a spraying rate of 20 LZa (effective dose 0.21 g / a). On the same day, an aqueous solution of IBA at a concentration of 5 X 10 — ⁵ mol / L was sprayed at 20 LZ a to the wheat of the fourth group that grew in the same manner. g / a) for foliage treatment. To the two aqueous solutions, a nonionic surfactant (same as above) was added at a ratio of 500 pprn.

Et al is, on April 1 7, grown on the ground portion 4 0 cm as high as, and for the fifth group of wheat not yet heading, concentration 5 X 1 0 one ⁵ The foliage treatment was performed by spraying an aqueous solution of 41-CI-IAA, which is mol / L, at a spraying rate of 40 LZa (effective dose: 0.42 g / a). Also, on the same day, with respect to wheat sixth group of grew similarly, spraying amount of concentration ⁵ X 1 0 _ 5 mol / L in which IBA aqueous solution 4 0 LZ a (effective agent amount 0.4 Foliage treatment was performed by spraying at 1 g / a). A nonionic surfactant (same as above) was added to the two aqueous solutions at a ratio of 500 ppm.

 In addition, the wheat in the seventh group was controlled by spraying a predetermined amount of water without performing any of the above treatments.

On June 16 each of the above seven groups of wheat was harvested and the yield ( kg Z section), and the average number of grains per ear (20 pieces / average) were measured. The results are summarized in Table 17.

 Table 17

 As is clear from the results in Table 17, by treating the wheat with the crop-harvesting agent according to the present invention, the number of grains per ear is promoted, thereby increasing the yield of wheat. It turns out.

 (Example 18)

Maize was treated using the crop increasing agent according to the present invention. First, the corn seeds (many) were grouped into 10 groups. On April 1 7, the corn a first group, the concentration of 4 is 5 X 1 0 _ ⁶ mol / L - C 1 - by immersing 2 hours IAA solution, has been dipped. Further, on the same day, the corn second group concentration 5 X 1 0- ⁶ mole 7 L a is 4 - performed by immersing for 3 0 seconds IAA Echiruaruko Lumpur solution, the immersion treatment - C 1 Was. Further, on the same day, the third Group - corn flop, concentration 5 X 1 0 - a ⁶ mol ZL IBA solution The immersion treatment was performed by immersing the sample for 2 hours. On the same day, a fourth group of corn was harvested at a concentration of 5 × 10 ⁶ mol ZL by IAA

(Crop increasing agent) Immersion treatment was carried out by immersion in an aqueous solution for 2 hours. _{C The} above four types of solutions include nonionic surfactants (manufactured by Toho Chemical Industry Co., Ltd., trade name: S orbon T —80) was added at a rate of 500 ppm each.

Next, on April 19, the corns of the above 10 groups were sown in seedling boxes, respectively. Then, on April 30, the grown seedlings were transplanted to the _field.c . On May 1 (12 days after sowing), the aerial part grew to a height of about 10 cm. for the 5 groups of maize, concentration is 5 X 1 0 ⁵ mol / L 4 - CI - than in spraying amount of 4 0 L / a the IAA solution (effective agent quantity 0. 4 2 g / a) By foliar spraying, foliage treatment was performed. Further, on the same day, for the corn sixth group of grew similarly, concentration of 1 X 1 0- ⁴ mol ZL 4 - CI - spraying amount of the IAA solution 4 0 L / a (effective drug amount The foliage treatment was performed by spraying with 0.84 g / a). Further, on the same day, with respect to the seventh group of corn was grown in the same manner, concentration of 5 X 1 0 - spraying amount of ⁵ mol / L in a IAA aqueous solution 4 0 LZ a (effective agent amount 0.3 Foliage treatment was performed by spraying at 5 g / a). Incidentally, a nonionic surfactant (same as above) was added to each of the three kinds of aqueous solutions at a ratio of 500 ppm.

In addition, on June 30 (72 days after seeding), the 8th group of corn that began to bear fruit had a concentration of 5 X 10 ⁵ mol / L with 4 C Foliage treatment was performed by spraying 1 IAA aqueous solution at a spraying rate of 40 L / a (effective dose of 0.42 g / a). Also, on the same day, Against corn ninth group of grew similarly, concentration is sprayed amount of 4 0 LZ a the IAA solution is 5 X 1 0 ⁵ mole ZL (effective drug amount 0. 3 5 g / a) Te following Foliage treatment was performed by spraying. A nonionic surfactant (same as above) was added to the two aqueous solutions at a ratio of 500 ppm.

 Further, the corn of the 10th group was controlled by spraying a predetermined amount of water without performing any of the above treatments.

Above 1 0 group of corn were harvested respectively on August 6, yield Karyou, i.e., with measuring the total weight of maize (k _g), the per share Weight (kg), and, to-Con The trawl ratio was calculated. The results are summarized in Table 18.

Table 1 8 Guru Crop increase agent Aqueous solution concentration Effective dose Amount treated

 (/ A) Method Co., Ltd. (kg)

1 4 1 C 1 1 I AA 5 X 1 0 4 7 1 9.9 1

4-C 1-IAA 5 x 10 0 1 ⁶ 1 2 4.2 1

 Etilal]-solution

I B A 5 1 0 2 5 9. 9 2

I A A 5 X 1 0 2 3 8.5 5 5

4 1 C 1 1 I AA 5 x 1 0 0.42 2 6 1 0.8 1 6

4 1 C 1 1 I AA 1 x 1 0 0.84 2 5 1 0.3 0

IAA 5 x 10 0 1 ⁵ 0 .3 5 2 2 7. 8 3

4-C 1-I A A 5 X 1 0 0. 4 2 2 3 8. 7 7

I AA 5 x 1 0 0. 3 5 2 0 7.30

1 0 Contronore 7 2 2 2. 7 1

As is evident from the results in Table 18, it was found that the corn treatment using the crop-producing agent according to the present invention promoted actual hypertrophy and increased the yield.

 (Example 19)

Using the crop-producing agent of the present invention, foliage treatment was performed on rice (American ivy). First, on May 8, ヮ evening seeds (many) were directly sowed at 50 cm intervals and cultivated. After that, I divided the data into three groups. Three weeks after sowing, the first group of ivy (6 strains), which grew to about 6 leaves, was treated with a nonionic surfactant (Wako Pure Chemical Industries, Ltd.). : the T ween 8 0) in a proportion of 1 0 0 ppm, by spraying concentration of IAA solution is 5 X 1 0 ⁵ mol / L Te than in spraying amounts of 2 0 L / a, foliage treatment ( Initial).

 After 7 weeks from the sowing, the above aqueous solution (same composition) was sprayed onto the second group of ivy (7 strains) at a spraying rate of 20 L / a to obtain foliage. Processing (middle term) was performed. The control was applied to the third group of potatoes (14 strains) by spraying a predetermined amount of water without any of the above treatments.

Then, cotton picking was performed on these three groups three times on October 12, October 9, and January 3, and harvested potatoes, respectively. We measured the weight of each peta stock and calculated the ratio to control. The results are summarized in Table 19.

Table 1 9 Gour Crops Aqueous solution concentration Treatment method Number of plants Number of October harvest (g) November harvest (g) December harvest (g) Gross harvest (g)

 (Mol / Co., Ltd. to control ratio to control π-control ratio to control ratio to control α-control ratio Foliage 7 6. 7 1 2 0 .0 5 6. 7 2 5 3. 4

1 6

 (Initial) 1. 5 1. 3 8 0.6. 6 1. 1. 2

I AA ⁵ X 1 0 - 5

 Foliage 8 7. 3 1 0 3.6 1 0 7. 1 2 9 8.0

2 7

 (Medium term) 1. 6 5 1. 1 9 1. 2 5 1.

3 Control 1 4 5 2. 9 8 7. 1 8 5. 7 2 2 5. 7

As is evident from the results in Table 19, the early harvest can be increased by performing the foliage treatment in the evening using the crop-harvesting agent according to the present invention, and the total yield can be reduced to the first. The increase was 12% in the group and 32% in the second group.

 (Example 20)

Rice (Koshihikari) was treated using the crop yield enhancer according to the present invention. First, rice seeds (fir) were divided into three groups and sown in seedling boxes in early May. At this time, 20 ppm of nonionic surfactant (manufactured by Va1ent, USA; trade name: X-77) was added to the seeds of the first group of rice before sowing. Concentration is 1 x 10 — ⁷ mol ZL

The immersion treatment was performed by immersing in an IA A aqueous solution for 2 hours.

On the other hand, on May 26, 100 ppm of nonionic surfactant (Tween 80) was added to the rice of the second group, whose height above the ground was about 10 cm. The foliage treatment was carried out by spraying an aqueous solution of IAA having a concentration of 5 × 10 — ⁵ mol / L containing 5,000 m 1 per seedling box. A third group of rice was controlled by spraying a predetermined amount of water without any of the above treatments.

 After sowing the seedlings in the seedling box and growing for one month, the grown rice seedlings were transplanted to the paddy field. The planting interval (between plants) was 25 cm, and rice was planted so that one group had 18 mx 3 rows.

On September 23, rice was harvested, dried and threshed to harvest the rice (rice), and the yield, that is, the weight of rice per plant, was measured, and the ratio to control was calculated. . The results are summarized in Table 20. Table 20

As is clear from the results in Table 20, it was found that the rice yield was increased by treating the rice with the crop increasing agent according to the present invention. (Example 21)

Wheat was treated using the crop increasing agent according to the present invention. First, one mid-February to seeds 2 5 0 g of wheat, were grouped into three, it was seeded in a field of the area 7. 5 m ^2, respectively. At this time, for the wheat of the first group, before sowing, it contains a nonionic surfactant (Tween 80) at a ratio of 20 ppm, and the concentration is 1 × 10 mol / L. IAA solution

The immersion treatment was performed by immersion for 2 hours.

On the other hand, in late February, nonionic surfactant (Tween 80) was added at a rate of 100 pm to a second group of wheat, whose tops grew to a height of about 10 cm. The foliage treatment was performed by spraying an aqueous IAA solution having a concentration of 5 × 10 ⁵ mol / L at a spray rate of ²⁰⁰ m 1 / m ² . The third group of wheat was controlled by spraying a predetermined amount of water without any of the above treatments.

In mid-June, the three groups of wheat were harvested, and the yield (kg / plot) and the ratio to control were calculated. Table 2 shows the results Summarized in 1.

 Table 2 1

 As is evident from the results in Table 21, by processing the wheat using the crop enhancer according to the present invention, the yield was 24% in the first group, 20% in the second group, and It was found that each increased.

 (Example 22)

 The foliage treatment of tomato was performed using the crop increasing agent according to the present invention. First, tomato seedlings whose growth conditions were almost the same were selected and planted on May 20 at 40 cm intervals in a field.

On June 3, a nonionic surfactant (X-77) was contained at a ratio of 20 ppm to the first group of tomatoes whose aerial parts grew to a height of about 20 cm. concentration by spraying Te than 1 0 0 spraying amount of m 1 / m ² the IAA solution is 1 X 1 0- ⁵ mol ZL, were foliar treatment. On the other hand, on the same day, the second group of tomatoes contained 20 ppm of nonionic surfactant (as above) at a concentration of 1 X 10 — ⁵ mol / L 4 C 1 -IAA aqueous solution was sprayed at a spraying rate of 100 m 1 / m ² to perform foliage treatment. The third group of tomatoes was controlled by spraying a predetermined amount of water without any of the above treatments. Three months after planting (mid-August), the yield, that is, the number of tomatoes (fruits) was calculated, and the control ratio was calculated. The results are summarized in Table 22.

 Table 2 2

As is evident from the results in Table 22, the foliage treatment of tomato using the crop-producing agent according to the present invention resulted in a total number of fruits of 23% in the first group and 2% in the second group. 7%, respectively. It should be noted that the specific embodiments or examples made in the section of the best mode for carrying out the invention merely clarify the technical contents of the present invention, and such specific examples The present invention should not be construed as being limited to only the above, but can be implemented with various modifications within the spirit of the present invention and the scope of the claims described below. Industrial applicability

The tuber / tuber hypertrophy promoter according to the present invention comprises an indole skeleton-containing compound represented by the general formula (1), a benzene skeleton-containing compound represented by the general formula (2), and 3) Including the naphthalene skeleton The composition includes at least one compound selected from the group consisting of organic compounds. The tuber and tuber hypertrophy promoter can be suitably used to promote tuber and tuber hypertrophy of plants such as vegetables and flowers, and is excellent in safety and can be mass-produced. .

 Further, the crop increasing agent according to the present invention is configured to contain the indole skeleton-containing compound represented by the general formula (1). The crop-harvesting agent can be suitably used for increasing the number of flowers and ears of various crops (plants), increasing the number of tillers, or promoting the hypertrophy of fruits (fruits and seeds) to increase the yield. It is excellent in safety and can be mass-produced.

Claims

The general formula (1

One (1)

Blue

(Wherein, X represents a hydrogen atom, a chlorine atom or a methoxy group, and R ¹ is — CHO group, — CH ₂ CHO group, — CH ₂ CN group, — COOR ² group, — CH 2 C 00 R ² group, _ CH ₂ CH ₂ COOR ² _{group, - CH (CH 3) C} 00 R 2 _{group, - CH 2 CH 2 CH 2} COOR 2 _{group, - CH (CH 3) CH} 2 COOR 2 group, - CH ( CH ₃ ) CH ₂ CH ₂ COOR ² group or —CH 2 C 0 C 00 R ² group, and R ² is a hydrogen atom, an alkali metal atom, an alkaline earth metal atom, the number of carbon atoms Represents an alkyl group of 1-4, a monosaccharide glycoside or an oligosaccharide glycoside)

An indole skeleton-containing compound represented by the general formula (2)

(Wherein, R ³ is a hydrogen atom, an alkali metal atom, an alkaline earth metal atom, an alkyl group having 1 to 4 carbon atoms, a monosaccharide glycoside or an oligosaccharide glycoside) And R ⁴ represents a hydrogen atom, a chlorine atom, a methyl group or a hydroxymethyl group)

A benzene skeleton-containing compound represented by the general formula (3)

(Wherein, R ⁵ represents a hydroxyl group or an amino group)

A tuberous root / tuber hypertrophy accelerator comprising at least one compound selected from the group consisting of naphthalene skeleton-containing compounds represented by the formula:

 2. The tuber / tuber hypertrophy promoter according to claim 1, wherein the compound is an indole skeleton-containing compound.

 3. The tuber / tuber hypertrophy promoter according to claim 2, wherein the indole skeleton-containing compound is a natural compound.

 4. The tuber / tuber hypertrophy promoter according to claim 2 or 3, wherein the indole skeleton-containing compound is 4-cloindindole-3-acetic acid and / or an ester thereof.

 5. The method according to claim 1, 2, 3 or 3, further comprising a surfactant.

Tuberous root according to 4 · Tuber hypertrophy promoter.

6. At least one selected from the group consisting of plant growth regulators, fertilizers, herbicides, fungicides, insecticides, acaricides, nematicides, agricultural and horticultural fungicides, soil fungicides, and soil conditioners. Claim 1 which is used in combination with a kind of drug 6. The agent for promoting tuberous root and tuber hypertrophy according to any one of item 5 above.

7. The tuber and tuber hypertrophy promoter c according to any one of claims 1 to 6, wherein the amount used per are is in the range of 10 to ⁷ g to 5 g.

8. The tuber / tuber hypertrophy promoter according to any one of claims 1 to 7, wherein the agent is diluted with water.

 9. The pharmaceutical composition according to claim 1, wherein the composition is in at least one type of formulation selected from the group consisting of liquids, powders, granules, granules, wettable powders, flowables, emulsions, and pastes. 7. The tuberous root / tubule enlargement promoter according to any one of 7 above.

 10. The method according to any one of claims 1 to 9, wherein the method is applied to at least one kind of treatment method selected from the group consisting of foliage treatment, soil treatment, immersion treatment, dust treatment, and injection treatment. Tuberous root described. Tuber hypertrophy promoter.

1 1. The tuber and tuber according to any one of claims 1 to 9, wherein the tuber is applied to at least one plant part selected from the group consisting of foliage, roots, seeds, flowers, and fruits. Hypertrophy.

 1 2. General formula (1)

(Wherein, X represents a hydrogen atom, a chlorine atom or a methoxy group, and R ¹ represents one CHO group, —CH ₂ CHO group, —CH ₂ CN group, —COOR ² group, —CH 2 C 00 R ² Groups, — CH ₂ CH ₂ C 00 R ² groups, — CH (CH ₃ ) C 00 R ² groups, — CH ₂ CH 2 CH 2 C 00 R ² groups, — CH (CH ₃ ) CH 2 C 00 R ² groups, 1 CH (CH ₃ ) CH 2 CH ₂ C 00 R ² groups, or 1 Represents a CH 2 COCOOR ² group, and R ² is a hydrogen atom, an alkali metal atom, an alkaline earth metal atom, an alkyl group having 1 to 4 carbon atoms, a monosaccharide glycoside or an oligosaccharide. Represents sugar glycoside)

A crop increasing agent comprising an indole skeleton-containing compound represented by the formula:

 13. The crop increasing agent according to claim 12, wherein the indole skeleton-containing compound is a natural compound.

 1 4. The compound containing the indole skeleton is selected from the group consisting of indole-3-acetic acid, 4-methylindole-3-acetate, indole-3-butyric acid, and esters of these compounds. 14. The crop enhancer according to claim 12, wherein the crop enhancer is at least one compound.

 1 5. The crop according to claim 12 or 13, wherein the indole skeleton-containing compound is 4 mono-indole 3-acetic acid and / or indole 3-butyric acid. Increasing agent.

 16. The crop enhancer according to claim 12, 13, 14, or 15, further comprising a reducing agent.

 17. The crop increasing agent according to claim 16, wherein the reducing agent is sodium bisulfite.

1 8. Selected from the group consisting of plant growth regulators, fertilizers, herbicides, fungicides, insecticides, acaricides, nematicides, agricultural and horticultural fungicides, soil fungicides, and soil conditioners The crop increasing agent according to any one of claims 12 to 17, which is used in combination with at least one kind of drug.

The crop increasing agent according to any one of claims 12 to 18, wherein the amount used per 19.1 is in the range of 10 to ⁷ g to 5 g.

20. The crop enhancer according to any one of claims 12 to 19, which is diluted with water.

 2 1. It is characterized in that it takes at least one type of formulation selected from the group consisting of liquids, powders, granules, granules, wettable powders, flowables, emulsions, and pastes 10. The crop enhancer according to any one of claims 12 to 19.

 22. The method according to any one of claims 12 to 20, wherein the method is applied to at least one kind of treatment method selected from the group consisting of foliage treatment, soil treatment, immersion treatment, dust treatment, and injection treatment. Item 8. A crop-promoting agent according to Item.

 23. The crop according to any one of claims 12 to 20, wherein the crop is applied to at least one plant part selected from the group consisting of foliage, roots, seeds, flowers, and fruits. Increasing agent.