JP4963568B2 - Methods for suppressing ethylene generation in plants during cultivation - Google Patents

Description

  The present invention relates to a method for suppressing ethylene generation in a plant being cultivated, and relates to a method for suppressing the production of ethylene in a living body of a plant being cultivated.

  Ethylene is a plant hormone synthesized in plants when the plant is subjected to stress such as trauma, insect damage, temperature stress, salt stress, drought stress, contact stimulus, mechanical stress, disease, biologically unfavorable environment, etc. . It is also known as a hormone that is specifically produced when a plant ages. The function of ethylene is known as an aging hormone that promotes leaf fall, germination, fruit maturation, flower and leaf senescence, and has effects such as suppression of rhizome growth and suppression of flower bud formation. Patent Document 1). For these reasons, controlling ethylene is an extremely important technique for suppressing plant aging. Patent Document 1 discloses a technique for suppressing ethylene production of cultivated plants and cut flowers by pyrrolidone and the like, and Patent Document 2 discloses a silver thiosulfate complex compound that is an ethylene inhibitor used as a typical cut flower freshness maintaining agent. Has been.

On the other hand, when a plant is growing, various plant hormones interact in vivo. For example, when auxin, a plant hormone that promotes rooting and cell elongation and participates in growth, is generated in cells, it is known that generation of ethylene, which is a plant hormone that promotes aging, is promoted. It is also known that cytosinin that promotes cell division and germination, gibberellin that promotes flowering, cell division and elongation, abscisic acid that promotes dormancy induction and stomatal closure also promote the generation of ethylene. As described above, it is considered that plants control growth, control growth promotion, or cancel growth suppression by hormone interaction.
Tatesaiger Plant Physiology 3rd edition (published by Bafukan) Japanese Patent Laid-Open No. 56-110602 JP-A-62-51601

However, although fertilizers such as nitrogen, phosphoric acid, and potassium are indispensable growth elements of plants, it is not known whether or not to control ethylene that promotes aging when plants grow. Plant growth regulators are used to control germination, rooting, elongation, flower formation, fruit growth, and morphogenesis, but as mentioned above, these substances promote the production of ethylene and grow. Decreases and promotes aging. In addition, there are various agents that suppress ethylene for use in maintaining the freshness of cut flowers, but these are for harvested cut flowers, and it is not known how they act on plants under cultivation. Furthermore, there is no actual application as a technique for controlling ethylene in plants under cultivation.
Therefore, the objective of this invention is providing the ethylene generation inhibitor of a plant, and the ethylene generation suppression method of the plant under cultivation.

  Therefore, as a result of searching for a component that affects ethylene generation in plants being cultivated, the present inventors applied the compound (A) described later to plants at a concentration of 1 to 10000 ppm, so that ethylene generation in plants being cultivated was remarkable. It was found to be suppressed.

  That is, the present invention relates to the general formula (1)

(In the formula, R ¹ represents a hydrocarbon group having 10 to 22 carbon atoms, R ² represents a hydrogen atom, a hydroxyl group, or a hydrocarbon group having 1 to 24 carbon atoms, and R ³ represents a hydrogen atom or 1 to 24 carbon atoms. The present invention provides a plant ethylene generation inhibitor composition containing 1 to 10,000 ppm (weight concentration) of the compound (A) represented by formula (1).
Moreover, this invention provides the ethylene generation | occurence | production suppression method of the plant under cultivation which applies 1-10,000 ppm of compounds (A) to a plant.

  According to the present invention, ethylene generation of plants during cultivation can be suppressed.

In the general formula (1), the hydrocarbon groups of R ¹ , R ² and R ³ may be either saturated or unsaturated, preferably saturated, and may be linear, branched or cyclic, A straight chain or a branched chain is preferred, and a straight chain is particularly preferred. The total carbon number of the hydrocarbon group may be an odd number or an even number, but an even number is preferable.
Also, the total number of carbon atoms of R ^1, R ^2, R ³ is preferably 50 or less, more preferably 12 to 48, more preferably from 16 to 44.

In the general formula (1), the carbon number of R ¹ is preferably 14 to 22, more preferably 14 to 20, more preferably from 14 to 18. The compound represented by the general formula (1) preferably has a total carbon number of 12 to 48, more preferably 16 to 28, and particularly preferably 16 to 24. Further, those having a total carbon number of 12 to 24 and one hydroxyl group are preferred, and those having a total carbon number of 16 to 22 and one hydroxyl group are particularly preferred. Specific examples of the compound represented by the general formula (1) include the following.

(A1)
1-alkanol represented by CH ₃ (CH ₂ ) _o-1 OH (o is an integer of 12 to 24, preferably 16 to 24, more preferably 16 to 20). That is, as the compound represented by the general formula (1), a monohydric alcohol having 12 to 24 carbon atoms can be given. Specifically, 1-dodecanol, 1-tridecanol, 1-tetradecanol, 1-pentadecanol, 1-hexadecanol, 1-heptadecanol, 1-octadecanol, 1-nonadecanol, 1-icosanol 1-henicosanol, 1-docosanol, 1-tricosanol, 1-tetracosanol.

(A2)
2-alkanol represented by CH ₃ CH (OH) (CH ₂ ) _p-3 CH ₃ (p is an integer of 12 to 24, preferably 16 to 24, more preferably 16 to 20). Specifically, 2-dodecanol, 2-tridecanol, 2-tetradecanol, 2-pentadecanol, 2-hexadecanol, 2-heptadecanol, 2-octadecanol, 2-nonadecanol, 2-icosanol Etc.

(A3)
_{CH 2 = CH (CH 2)} q-2 OH (q is 12 to 24, preferably 16 to 24, more preferably an integer of 16 to 20) include terminally unsaturated alcohol represented by. Specific examples include 11-dodecene-1-ol, 12-tridecene-1-ol, 15-hexadecene-1-ol, and the like.

(A4)
Examples of other unsaturated long chain alcohols include oleyl alcohol, elaidyl alcohol, linoleyl alcohol, linoleyl alcohol, eleostearyl alcohol (α or β), ricinoyl alcohol, and the like.

(A5)
_{HOCH 2 CH (OH) (CH} 2) r-2 H (r is 12 to 24, preferably 16 to 24, more preferably an integer of 16 to 20) include 1,2-diol represented by. Specific examples include 1,2-dodecanediol, 1,2-tetradecanediol, 1,2-hexadecanediol, 1,2-octadecanediol, and the like.

  Of the above (A1) to (A5), (A1), (A2), (A4), (A5) are preferable, (A1), (A2), (A4) are more preferable, and (A1), (A4) ) Is more preferable, and (A1) is particularly preferable.

  The plant ethylene generation inhibitor composition of the present invention contains the above compound (A) in an amount of 1 to 10,000 ppm (weight concentration, hereinafter the same), preferably 1 to 1000 ppm, more preferably 5 to 500 ppm. The concentration of the compound (A) is a concentration when applied to a plant.

  The plant ethylene generation inhibitor composition of the present invention further contains a surfactant (B) other than the compound (A) [hereinafter referred to as component (B)] together with the compound (A). Is preferred. Furthermore, it is preferable to contain at least one of fertilizer (C) [hereinafter referred to as component (C)] and chelating agent (D) [hereinafter referred to as component (D)]. It is more preferable to contain a component (B) and a component (D) especially. When fertilizer is required at the application time, it is preferable to use the component (B) and the component (C) in combination with the compound (A), for example. Moreover, when a fertilizer is not required at the application time, it is preferable to use a component (B) for a compound (A) or a component (B) and a component (D) for a compound (A), for example.

  As the component (B), the following nonionic surfactants, anionic surfactants, and amphoteric surfactants are preferably used for the purpose of emulsifying, dispersing, solubilizing or promoting penetration of the compound (A).

Nonionic surfactants include sorbitan fatty acid ester, polyoxyalkylene sorbitan fatty acid ester, polyoxyalkylene fatty acid ester, glycerin fatty acid ester, polyoxyalkylene glycerin fatty acid ester, polyglycerin fatty acid ester, polyoxyalkylene polyglycerin fatty acid ester, sorbitol Fatty acid ester, polyoxyalkylene sorbitol fatty acid ester, sucrose fatty acid ester, resin acid ester, polyoxyalkylene resin acid ester, polyoxyalkylene alkyl ether, polyoxyalkylene alkyl phenyl ether, alkyl (poly) glycoside, polyoxyalkylene alkyl ( Poly) glycoside, alkyl alkanolamide, sugar fatty acid amide and the like. Here, examples of the sugar fatty acid amide include those having a structure in which a hydrophobic group is bonded to an saccharide or sugar alcohol, for example, a sugar fatty acid amide such as a fatty acid amide of glucose or fructose. Further, those having a structure in which a hydrophobic group is amide-bonded to a sugar or sugar alcohol having an amino group, for example, a sugar fatty acid amide such as a fatty acid amide of N-methylglucamine can be used. The polyoxyalkylene group is preferably a polyoxyethylene group or a polyoxypropylene group. The fatty acid residue is preferably a C ₆ -C ₃₀ fatty acid residue. The nonionic surfactant is preferably at least one selected from ether group-containing nonionic surfactants and ester group-containing nonionic surfactants that do not contain nitrogen atoms. Specifically, polyoxyalkylene (particularly ethylene) sorbitan fatty acid ester, polyoxyalkylene (particularly ethylene) glycerin fatty acid ester, and sucrose fatty acid ester are preferred.

  Examples of the anionic surfactant include carboxylic acid-based surfactants, sulfonic acid-based surfactants, sulfate ester-based surfactants, and one or more selected from carboxylic acid-based surfactants and phosphate ester-based surfactants. preferable.

  Examples of the carboxylic acid-based surfactant include fatty acids having 6 to 30 carbon atoms or salts thereof, polyvalent carboxylates, polyoxyalkylene alkyl ether carboxylates, polyoxyalkylene alkylamide ether carboxylates, rosinates, Examples include dimer acid salts, polymer acid salts, tall oil fatty acid salts, and esterified starches. Of these, esterified starch is preferred. Among the esterified starches, alkenyl succinylated starch (also referred to as alkenyl succinate esterified starch or alkenyl succinate starch) is preferable, and octenyl succinylated starch is particularly preferable. Etc.].

  Examples of the sulfonic acid surfactant include alkylbenzene sulfonate, alkyl sulfonate, alkyl naphthalene sulfonate, naphthalene sulfonate, diphenyl ether sulfonate, alkyl naphthalene sulfonate condensate, and naphthalene sulfonic acid condensation. Examples include physical salts.

  Examples of sulfate surfactants include alkyl sulfates, polyoxyalkylene alkyl sulfates, polyoxyalkylene alkyl phenyl ether sulfates, tristyrenated phenol sulfates, polyoxyalkylene distyrenated phenol sulfates. And alkyl polyglycoside sulfate.

Examples of the phosphate ester surfactant include alkyl phosphate ester salts, alkylphenyl phosphate ester salts, polyoxyalkylene alkyl phosphate ester salts, and polyoxyalkylene alkylphenyl phosphate ester salts.
Examples of the salt include metal salts (Na, K, Ca, Mg, Zn, etc.), ammonium salts, alkanolamine salts, aliphatic amine salts, and the like.

  Examples of amphoteric surfactants include amino acids, betaines, imidazolines, and amine oxides.

  Examples of the amino acid system include acyl amino acid salts, acyl sarcosine salts, acyloylmethylaminopropionates, alkylaminopropionates, acylamidoethylhydroxyethylmethylcarboxylates, and the like.

  Examples of the betaine series include alkyl dimethyl betaine, alkyl hydroxyethyl betaine, acylamidopropyl hydroxypropyl ammonia sulfobetaine, ricinoleic acid amidopropyl dimethyl carboxymethyl ammonia betaine, and the like.

  Examples of the imidazoline series include alkyl carboxymethyl hydroxyethyl imidazolinium betaine, alkyl ethoxy carboxymethyl imidazolium betaine, and the like.

  Examples of amine oxides include alkyldimethylamine oxide, alkyldiethanolamine oxide, alkylamidopropylamine oxide, and the like.

Component (B) may be used alone or in combination of two or more. Moreover, when these components (B) contain a polyoxyalkylene group, it preferably has a polyoxyethylene group, and the average added mole number thereof is preferably from 1 to 300, preferably from more than 5 to 100 or less.
In addition, the component (B) preferably has a glycine HLB of 10 or more, more preferably 12 or more.

  When a monohydric alcohol having 12 to 24 carbon atoms is used as the compound (A), the component (B) includes an ester group-containing nonionic surfactant and an ether group-containing nonionic surfactant that does not contain a nitrogen atom. It is preferable to use one or more selected from agents, amphoteric surfactants, carboxylic acid anionic surfactants, and phosphoric acid anionic surfactants. In particular, at least one selected from an ester group-containing nonionic surfactant and an ether group-containing nonionic surfactant not containing a nitrogen atom is preferable. That is, as the ethylene generation inhibitor composition of the plant of the present invention, a monohydric alcohol having 12 to 24 carbon atoms, an ester group-containing nonionic surfactant, an ether group-containing nonionic surfactant containing no nitrogen atom, Examples thereof include those containing one or more surfactants selected from amphoteric surfactants, carboxylic acid anionic surfactants, and phosphoric acid anionic surfactants.

Further, as the component (C), specifically, N, P, K, Ca, Mg, S, B, Fe, Mn, Cu, Zn, Mo, Cl, Si, Na, etc., particularly N, P, Examples include inorganic substances and organic substances that serve as a supply source of K, Ca, and Mg. Examples of such an inorganic substance include ammonium nitrate, potassium nitrate, ammonium sulfate, ammonium chloride, ammonium phosphate, sodium nitrate, urea, ammonium carbonate, potassium phosphate, superphosphate lime, and molten phosphorus fertilizer (3MgO · CaO · P ₂ O ₅ · 3CaSiO _2), potassium sulfate, salts potassium nitrate of lime, slaked lime, lime carbonate, magnesium sulfate, magnesium hydroxide, magnesium carbonate, and the like. Organic substances include chicken dung, beef dung, bark compost, amino acids, peptone, Mieki, fermented extract, calcium salts of organic acids (citric acid, gluconic acid, succinic acid, etc.), fatty acids (formic acid, acetic acid, propionic acid, And calcium salts of caprylic acid, capric acid, caproic acid and the like. These fertilizer components can also be used in combination with a surfactant. It is not necessary to add the fertilizer component when the fertilizer component is sufficiently applied as the original fertilizer in the soil, such as in the open field cultivation of rice and vegetables. Moreover, it is preferable to mix | blend a fertilizer component with the type of cultivation form which avoids excessive application of original fertilizer and gives a fertilizer component in the same way as irrigation like a hydroponics and hydroponics.

  When an organic acid having a chelating ability as described below or a salt thereof is used in combination as the component (D), the yield increase effect of the crop is further improved. Specifically, citric acid, gluconic acid, malic acid, heptonic acid, oxalic acid, malonic acid, lactic acid, tartaric acid, succinic acid, fumaric acid, maleic acid, adipic acid, glutaric acid and other oxycarboxylic acids, polyvalent carboxylic acids And potassium salts, sodium salts, alkanolamine salts, aliphatic amine salts and the like thereof. In addition, crop yields can be improved by mixing chelating agents other than organic acids. Examples of the chelating agent to be mixed include aminocarboxylic acid chelating agents such as EDTA, NTA, and CDTA.

  The plant ethylene generation inhibitor composition of the present invention preferably contains the above component (B) in an amount of 1 to 10,000 ppm (weight concentration, hereinafter the same), further 1 to 5000 ppm, particularly 1 to 1000 ppm.

In the plant ethylene generation inhibitor composition of the present invention, when the component (B), the component (C), and the component (D) are used in combination, the ratio of each component is relative to 100 parts by weight of the compound (A). (B) 0.01 to 10000000 parts by weight, further 0.02 to 1000000 parts by weight, especially 0.1 to 100000 parts by weight; Component (C) 0 to 1,000,000 parts by weight, further 0 to 100,000 parts by weight Parts, especially 10 to 100,000 parts by weight; component (D) 0 to 50,000 parts by weight, especially 10 to 5,000 parts by weight are preferred.
The plant ethylene generation inhibitor composition of the present invention is 0 to 5000 parts by weight, particularly 10 to 500 parts by weight, of other nutrient sources (saccharides, amino acids, vitamins, etc.) with respect to 100 parts by weight of the compound (A). A part by weight can also be contained.

  Various means can be used as a method for suppressing ethylene generation of plants during cultivation according to the present invention. For example, a method of spraying the plant ethylene generation inhibitor composition (hereinafter also referred to as the composition of the present invention) directly on the foliage, such as foliage, stems, and fruits (spreading foliage, etc.) or injecting it into the soil ( (Soil irrigation, soil irrigation, etc.), hydroponics, and hydroponic liquids that are in contact with the roots such as rock wool, and a method of diluting and supplying the supplied water (hydroponic culture).

  Examples of hydroponics include hydroponics, spray plowing, and solid medium plowing. Furthermore, the hydroponic method is a circulating submerged hydroponic method, a vented submerged submerged hydroponic method, a liquid surface up / down submerged submerged hydroponic method, a capillary hydroponic method, and an NFT (Nutrient Film Technique) method. And so on. Spray plowing methods are classified into spray hydroponic methods and spray plowing methods. Solid medium cultivation methods are classified into inorganic medium cultivation methods and organic medium cultivation methods. In the inorganic medium cultivation method, rubble, sand, momigakun charcoal, vermiculite, perlite, rock wool, etc. are used. Organic medium cultivation methods use natural organic materials such as bark, coconut husk, peat moss, sawdust, and chaff, and organic compounds such as polyurethane, polyphenol, and vinylon. Among these, an inorganic medium cultivation method using rock wool is preferable from the viewpoint of improving the retention of the nutrient solution and improving the gas phase rate.

  The application amount of the compound (A) in hydroponics is preferably 0.005 kg / 10a / 1 crop to 100 kg / 10a / 1 crop, more preferably 0.005 kg / 10a / 1 crop to 75 kg / 10a / 1 crop. It is preferable to adjust the concentration of compound (A) in the composition of the present invention and the number of applications so that the application amount falls within this category.

  What is necessary is just to select a suitable method for the supply method of this invention composition with the kind of plant and the application time (the raising seedling application or this field application).

  In the present invention, the number of times of application of the composition of the present invention in application for raising seedlings and / or application in this field is not particularly limited, but when it is performed twice or more, the application interval is preferably within 50 days, respectively. Is more preferable.

  Moreover, it is preferable to perform this field application to the underground part and the above-ground part of a plant. The part where the adventitious root is generated (basement stem part) is particularly preferable even in the underground part. In that case, the application interval of the composition of the present invention to the underground part is preferably within 50 days, and the application interval of the composition of the present invention to the ground part is preferably within 10 days.

  The application amount of the compound (A) is preferably 0.005 kg / 10a / 1 product to 100 kg / 10a / 1 product, more preferably 0.005 kg / 10a / 1 product to 75 kg / 10a / 1 product. It is preferable to adjust the concentration of the compound (A) of the composition of the present invention and the number of applications so that the application amount is within this range.

  Although it does not specifically limit as a plant used as the object of this invention, Examples of fruit vegetables include cucumber, pumpkin, watermelon, melon, tomato, eggplant, bell pepper, strawberry, okra, sweet bean, broad bean, pea, soybean (edamame), corn and the like. Can be mentioned. Among them, tomatoes, cucumbers, strawberries, peppers, eggplants are suitable. Saladana, celery, spinach, garlic, parsley, honey bee, seri, udo, myoga, buffalo, perilla etc. Root vegetables include radish, turnip, burdock, carrot, potato, taro, sweet potato, yam, ginger, lotus root and the like. In addition, it can also be used for rice, wheat, and flowering plants.

  The plant used in the present invention is not particularly limited as long as it is being cultivated, such as before harvesting and after harvesting, but is preferably before harvesting from the viewpoint of effectively suppressing ethylene generation.

  The present invention is particularly preferably performed in an enclosed space. The degree of sealing of the enclosed space is not particularly limited, but in general cultivation methods, for example, greenhouse plants, greenhouse cultivation, tunnel cultivation, multi-cultivation, covering plants one by one with vinyl etc. to prevent frost This is particularly effective in cultivation where the air permeability is lower than that in outdoor cultivation, such as cultivation.

Example 1 Ethylene suppression test when applied to the underground part of tomato hydroponics Tomato variety: Momotaro [Takii Seed and Seed Co., Ltd.]
For germination: 50-hole cell tray cultivation pot: 250 mL polyethylene bottle cultivation Environmental conditions: Illuminance 5000 Lux, temperature 23 ° C., humidity 50%, lighting time 16 hours Test agents: Aliphatic alcohol [Calcoal series manufactured by Kao Corporation], POE ( 20) Sorbitan fatty acid ester [Reodol TW-O120V manufactured by Kao Corporation], Auxin [Wako Pure Chemical Industries, Ltd.], Cytokinin [Wako Pure Chemical Industries, Ltd.], Silver Thiosulfate Complex (STS) (Crysar AVB: STS 200 mM) Use) (When using an aliphatic alcohol, a test solution not using a surfactant was preliminarily dispersed for 1 hr at 30 ° C. by ultrasonic waves.)

  Tomato seeds were sown in a 50-hole cell tray, and the underground part of tomatoes grown in the second leaf stage was washed with tap water and soil was dropped, and then tap water was absorbed under the above cultivation conditions for 1 day. About 250 mL of a solution prepared by diluting the product of the present invention to the treatment concentration shown in Table 1 was placed in a tap water, and then the tomatoes after washing the roots were transplanted to start the test. Ten tomato strains on the 7th day after the start of the test were included in a tedlar bag [for 5 L: manufactured by Omi Odo Air Service Co., Ltd.] while attached to the test solution. After 5 hours, the amount of ethylene gas generated in the Tedlar bag was measured with a gas detector tube (measuring instrument: manufactured by kitagawa, detector tube: ethylene No172L manufactured by Gastec), and the rate of ethylene generation per plant live weight (mg / hr / g) ) Was measured. The results are shown in Table 1. As a result, when the product of the present invention was applied to the root, ethylene generation was clearly suppressed as compared with the comparative product.

Example 2 Ethylene suppression test when applied to the stem and leaves of hydroponically grown tomato Tomato variety: Momotaro [Takii Seedling Co., Ltd.]
For germination: 50-hole cell tray cultivation pot: 250 mL polyethylene bottle cultivation Environmental conditions: Illuminance 5000 Lux, temperature 23 ° C., humidity 50%, lighting time 16 hours Agent used: same as in Example 1

  Tomato seeds were sown in a 50-hole cell tray, and the underground part of tomatoes grown in the second leaf stage was washed with tap water and soil was dropped, and then tap water was absorbed under the above cultivation conditions for 1 day. In each case, 250 mL of the liquid in tap water was placed in a polyethylene bottle, and the tomatoes after washing the roots were transplanted. The test was started by spraying a solution prepared by diluting the product of the present invention to the treatment concentration shown in Table 2 onto the foliage with a 10 mL spray per tomato strain. Ten tomato strains 7 days after the start of the test were included in a tedlar bag [for 5 L: manufactured by Omi Odo Air Service Co., Ltd.] while still attached to tap water. After 5 hours, the amount of ethylene gas generated in the Tedlar bag was measured with a gas detector tube (measuring instrument: manufactured by kitagawa, detector tube: ethylene No172L manufactured by Gastec), and the rate of ethylene generation per plant live weight (mg / hr / g) ) Was measured. The results are shown in Table 2. As a result, when the product of the present invention was applied to the foliage, ethylene generation was clearly suppressed as compared with the comparative product.

Example 3 Ethylene inhibition test when applied to the underground part of cucumber hydroponics: Cucumber cultivar: For northward germination: 50-well cell tray cultivation pot: 250 mL polyethylene bottle cultivation Environmental conditions: Illuminance 5000 Lux, temperature 23 ° C., humidity 50%, lighting Drug used for 16 hours: Same as in Example 1

  Cucumber was sown in a 50-hole cell tray, and the underground portion of the cucumber grown in the second leaf stage was washed with tap water and soil was dropped, and then tap water was absorbed under the above-mentioned cultivation conditions for 1 day. About 250 mL of the solution obtained by diluting the product of the present invention to the treatment concentration shown in Table 3 was placed in a tap water, and then the cucumber with the root portion washed was transplanted and the test was started. Ten cucumber strains 7 days after the start of the test were included in a tedlar bag [for 5 L: manufactured by Omi Odo Air Service Co., Ltd.] while attached to the test solution. After 5 hours, the amount of ethylene gas generated in the Tedlar bag was measured with a gas detector tube (measuring instrument: manufactured by kitagawa, detector tube: ethylene No172L manufactured by Gastec), and the rate of ethylene generation per plant live weight (mg / hr / g) ) Was measured. The results are shown in Table 3. As a result, when the product of the present invention was applied to the root, ethylene generation was clearly suppressed as compared with the comparative product.

Claims (5)

General formula (1)
(In the formula, R ¹ represents a hydrocarbon group having 10 to 22 carbon atoms, R ² represents a hydrogen atom, a hydroxyl group, or a hydrocarbon group having 1 to 24 carbon atoms, and R ³ represents a hydrogen atom or 1 to 24 carbon atoms. The composition containing the compound (A) 1 to 10 ppm (weight concentration) represented by (B) and a surfactant represented by the following formula: Suppression of ethylene generation in plants during cultivation
Control method. The method for suppressing ethylene generation of a plant under cultivation according to claim 1, wherein the plant is tomato or cucumber.   The compound represented by the general formula (1) is CH _Three (CH ₂ ) _o-1 The method for suppressing ethylene generation of a plant under cultivation according to claim 1 or 2, which is 1-alkanol represented by OH (o is an integer of 12 to 24). The surfactant (B) is at least one selected from an ester group-containing nonionic surfactant and an ether group-containing nonionic surfactant that does not contain a nitrogen atom. For suppressing ethylene generation in plants during cultivation of rice. The ethylene generation | occurence | production suppression method of the plant under cultivation of any one of Claims 1-4 whose content of a component (B) is 1-1000 ppm.