WO2012096214A1 - Plant growth regulator and method for using same - Google Patents

Abstract

Provided is a novel and highly effective plant growth regulator for cultivated plants which is to be used in cultivating crops such as banana, characterized by comprising, as the active ingredient, a heterocyclic compound represented by general formula (I). In general formula (I): A represents a nitrogen atom or C-hal (wherein hal represents a halogen atom); B represents a nitrogen atom; R¹ represents a halogen atom, a C_1-6 alkyl group or a C_3-6 cycloalkyl group; and R² represents a hydroxyl group, a C_1-6 alkoxy group, a benzyloxy group, a benzyloxy group having one or more substituents on the ring thereof, said substituents being the same or different and selected from among a halogen atom, a cyano group, a C_1-6 alkyl group, a C_1-6 haloalkyl group, a C_1-6 alkoxy group and a C_1-6 haloalkoxy group, a phenylamino group, or a phenylamino group having one or more substituents on the ring thereof, said substituents being the same or different and selected from among a halogen atom, a cyano group, a C_1-6 alkyl group, a C_1-6 haloalkyl group, a C_1-6 alkoxy group and a C_1-6 haloalkoxy group.

Description

Plant growth regulator and method of using the same

The present invention relates to a plant growth regulator comprising a heterocyclic compound represented by the following general formula (I) as an active ingredient and a method for using the same, and as a cultivated plant, in particular, an increase in banana yield and leaf number, a new pseudostem The present invention provides a drug excellent in plant growth regulation effects such as growth promotion (hypertrophy) of a part (child strain).

The cultivated plant belonging to the genus Basho, particularly banana, is a general term for varieties of edible fruits and refers to the fruits. The plant includes East Asia such as China and Taiwan, Southeast Asia such as Philippines, Indonesia, Thailand and Vietnam, West Asia such as India, Brazil, Ecuador, Costa Rica, Mexico, Guatemala, Colombia, Peru and other Central and South America, Tanzania, Congo, It is mainly cultivated in Africa such as Uganda and South Africa. Plantation is also cultivated throughout the year. Bananas grown and harvested in these countries are exported worldwide.

In banana cultivation, the root part including the stem part is in the basement, and the part like a stalk that extends high above the ground part is called a fake stalk. A long oval leaf (leaf blade) extends greatly from the tip, and a fruit axis comes out from the tip of the pseudostem, and a whole bunch including a finger and a bunch is formed, and a banana grows in the whole bunch. After harvesting the banana, the pseudostem (parent strain) is cut at about 2 m above the ground. At that time, a new pseudostem part (child strain) newly appearing from the underground root part is propagated in the same manner, or a new pseudostem part (child strain) is bred and propagated, and banana harvesting is repeated.
The number of leaves (functional leaves) is important for banana cultivation, and since there are 3 months from the last leaf extraction (before flowering) to harvest, at least 12 to 13 functional leaves during the flowering period It is necessary to leave a degree. If the number of functional leaves is insufficient, the plant is cut down during cultivation.

Increasing the yield by controlling pests is the most important issue for the cultivation of cultivated plants (crop), especially banana cultivation. However, the conventional technique uses many times of chemical treatment, and the labor is tremendous, and the drug resistance is further increased. The emergence of fungi or drug-resistant pests makes control more difficult.
On the other hand, attempts have been made to increase crop yields by using healthy agents (plant growth regulators) that have an effect of promoting the growth of crops to grow crops in a healthy manner.

JP 11-199575 A International Publication No. 99/024413 Pamphlet JP 2007-99749 A International Publication No. 2010/037482 Pamphlet International Publication 2010/089055 Pamphlet

As mentioned above, in the cultivation of crops such as bananas, attempts have been made to grow crops steadily by using plant growth regulators for crops and increase yields, but there are no drugs that still have satisfactory effects. Therefore, a new and highly effective plant growth regulator in the cultivation of crops such as banana cultivation is demanded.

As a result of intensive studies to solve the above problems, the present inventors have surprisingly found that a specific fungicidal active compound having a heterocyclic structure has a plant growth regulating effect, and the compound grows healthy with the compound. As a result, the inventors have found that it is possible to increase the yield, and have further advanced research to complete the present invention.

That is, the present invention relates to at least the following inventions:
(1) General formula (I)

(Wherein A represents a nitrogen atom or C-hal (where hal represents a halogen atom), B represents a nitrogen atom, R ¹ represents a halogen atom; a C ₁ -C ₆ alkyl group or C ₃₎ -C ₆ .R ² showing a cycloalkyl group of the hydroxyl _group; C 1 -C ₆ alkoxy group; a benzyloxy group; may be the same or different, a halogen atom, a cyano _group, C 1 -C ₆ alkyl, _{C 1} A benzyloxy group having one or more substituents selected from a —C ₆ haloalkyl group, a C ₁ -C ₆ alkoxy group or a C ₁ -C ₆ haloalkoxy group; a phenylamino group or the same or different , halogen atom, cyano _group, C 1 -C _{6 alkyl,} C 1 -C ₆ haloalkyl _group, C 1 -C ₆ alkoxy or _C 1 -C ₆ 1 or more selected from haloalkoxy groups Plant growth regulators for cultivated plants, characterized by containing a heterocyclic compound as an active component represented by.) Showing a phenylamino group having a substituent on the ring.
(2) The plant growth regulator, wherein the cultivated plant is rice, wheat, corn, soybean, potato or banana.
(3) The said plant growth regulator whose cultivated plant is a banana.
(4) The plant growth regulator as described above, wherein the heterocyclic compound represented by the general formula (I) is thiazinyl or isothianyl.
(5) General formula (I)

(Wherein A represents a nitrogen atom or C-hal (where hal represents a halogen atom), B represents a nitrogen atom, R ¹ represents a halogen atom; a C ₁ -C ₆ alkyl group or C ₃₎ -C ₆ .R ² showing a cycloalkyl group of the hydroxyl _group; C 1 -C ₆ alkoxy group; a benzyloxy group; may be the same or different, a halogen atom, a cyano _group, C 1 -C ₆ alkyl, _{C 1} A benzyloxy group having one or more substituents selected from a —C ₆ haloalkyl group, a C ₁ -C ₆ alkoxy group or a C ₁ -C ₆ haloalkoxy group; a phenylamino group or the same or different , halogen atom, cyano _group, C 1 -C _{6 alkyl,} C 1 -C ₆ haloalkyl _group, C 1 -C ₆ alkoxy or _C 1 -C ₆ 1 or more selected from haloalkoxy groups A phenylamino group having a substituent on the ring.) Use of a plant growth regulator characterized by treating a cultivated plant with an effective amount of a plant growth regulator comprising a heterocyclic compound represented by Method.
(6) The said usage method of the plant growth regulator whose cultivated plant is a rice, wheat, corn, soybean, potato, or a banana.
(7) The said usage method of the plant growth regulator whose cultivated plant is a banana.
(8) The said any usage method of the plant growth regulator whose heterocyclic compound represented by general formula (I) is a thiazinyl or an isotianil.
(9) The method for using any of the above plant growth regulators, wherein the treatment to the cultivated plant is a spraying treatment, a coating treatment, an injection treatment or a soil irrigation treatment.
(10) General formula (I)

(Wherein A represents a nitrogen atom or C-hal (where hal represents a halogen atom), B represents a nitrogen atom, R ¹ represents a halogen atom; a C ₁ -C ₆ alkyl group or C ₃₎ -C ₆ .R ² showing a cycloalkyl group of the hydroxyl _group; C 1 -C ₆ alkoxy group; a benzyloxy group; may be the same or different, a halogen atom, a cyano _group, C 1 -C ₆ alkyl, _{C 1} A benzyloxy group having one or more substituents selected from a —C ₆ haloalkyl group, a C ₁ -C ₆ alkoxy group or a C ₁ -C ₆ haloalkoxy group; a phenylamino group or the same or different , halogen atom, cyano _group, C 1 -C _{6 alkyl,} C 1 -C ₆ haloalkyl _group, C 1 -C ₆ alkoxy or _C 1 -C ₆ 1 or more selected from haloalkoxy groups A phenylamino group having a substituent on the ring.) An effective amount of a plant growth regulator comprising a heterocyclic compound represented by the following formula as an active ingredient is treated to a cultivated plant, and the number of leaves or functional leaves of the cultivated plant: Increase of plant height, enlargement of new pseudostem or stem, promotion of rooting, increase of elongation and / or activation of root generation and / or growth, which is earlier in rooting time, enhancement of plant vitality , Decrease in withering of lower leaves, increase of salt tolerance, drought resistance and low temperature resistance of plants, promotion of fruit coloring, promotion of growth of cereals, fruits, potatoes, etc., improvement of sugar content of fruits, potatoes, etc. A method for regulating the growth of cultivated plants, comprising achieving one or more of crop quality improvement and / or yield increase.

The heterocyclic compounds represented by the general formula (I) are known compounds, and the general names thiazinyl and isothianil included in the general formula (I) are known as rice blast control agents ( For example, see Patent Documents 1 and 2 and Non-Patent Document 1.) It is also known that compounds other than these two compounds can be used as various disease control agents (see, for example, Patent Documents 3 to 5). However, it is not known that these heterocyclic compounds can be used as plant growth regulators, such as increasing the yield of bananas and the number of leaves of the compound, and promoting the growth (hypertrophy) of new pseudostem parts (children). The effect is not known at all.

According to the plant growth regulator and its method of use of the present invention, the healthy growth of cultivated plants is promoted, the yield is increased, the treatment of existing pest control agents can be reduced, and the burden on the environment is reduced. The In particular, in banana cultivation, excellent plant growth control effects such as an increase in the yield and the number of leaves (functional leaves), and further promotion of growth (hypertrophy) of the new pseudostem (child stock) are exhibited. .
As crops, plant growth regulation effects such as an increase in the yield of bananas and the number of leaves, and growth promotion (hypertrophy) of new pseudostem parts (child stocks) are particularly remarkable.

The heterocyclic compound represented by the general formula (I), which is an active ingredient of the present invention, is a known compound, and thiazinyl and isothianyl are easily available from the market. It can be produced by the method described in (3) to (3).
Among the heterocyclic compounds represented by the general formula (I) that are active ingredients of the plant growth regulator of the present invention, the following are exemplified as preferred:
A compound wherein A is a nitrogen atom or C—Cl;
A compound in which R ¹ is a halogen atom, a C ₁ -C ₃ alkyl group or a C ₃ -C ₆ cycloalkyl group;
R ² is a hydroxyl group, a C ₁ -C ₃ alkoxy group, a benzyloxy group having one or more substituents selected from the same or different halogen atoms on the ring, or the same or different halogen atoms , A phenylamino group having one or more substituents selected from a cyano group, a C ₁ -C ₆ alkyl group or a C ₁ -C ₆ alkoxy group on the ring.

Among the heterocyclic compounds represented by the general formula (I) that are active ingredients of the plant growth regulator of the present invention, more preferred are those in which A is a nitrogen atom or C—Cl, and R ¹ is Cl. , A C ₁ -C ₃ alkyl group or a C ₃ -C ₆ cycloalkyl group, and R ² is a hydroxyl group, a C ₁ -C ₃ alkoxy group or one or more substituents which may be the same or different A benzyloxy group having Cl on the ring, or a phenylamino group having a cyano group, a C ₁ -C ₃ alkyl group or a C ₁ -C ₃ alkoxy group on the ring as one or more substituents which may be the same or different Are each exemplified.

Furthermore, in the heterocyclic compound represented by the above general formula (I), when A is a nitrogen atom, those in which R ¹ is a C ₁ -C ₃ alkyl group or a C ₃ -C ₆ cycloalkyl group are preferable, Particularly preferred are those in which R ¹ is CH ₃ or cC ₃ H ₇ .
In the heterocyclic compound represented by the above general formula (I), when A is C-hal, R ¹ is preferably a halogen atom, particularly Cl. When A is C-hal, it is more particularly preferred that A is C—Cl and R ¹ is Cl.

Among the heterocyclic compounds represented by the general formula (I), thiazinyl and isothianyl are most preferable as the plant growth regulator of the present invention. Of these, thiazinyl is preferable because it is known not only to act as a plant growth regulator disclosed in the present specification but also to be effective as a disease control agent. Thiazinyl is, for example, various diseases in seed treatment and seed treatment, such as rice yellow dwarf disease, rice seedling blight, rice idiot disease, rice blast disease, rice blast, rice sesame leaf disease, rice browning , Rice red rice, Rice rice mildew, Rice blight bacterial disease, Rice leaf sheath browning disease, Rice brown streak disease, Rice seedling blight disease, Rice white leaf blight, Wheat snow rot (Brown), Wheat snow rot Disease (red), wheat snow rot (large fungus nuclei), snow rot (black small particles), snow rot (brown small particles), wheat red mold, ergot disease, wheat blight, wheat strain rot, sharp eyespot, wheat powdery mildew, wheat blight, wheat red rust, wheat black rust, wheat yellow rust, wheat eye spot, wheat leaf blight, wheat yellow, wheat streak, wheat naked scab, Wheat scab, wheat to smut, potato powdery scab, potato scab, potato / toma Plague, potato blight, potato black bruises disease, potato ring rot, are known to exhibit a control effect which is excellent in such as ring rot.

Thiazinyl is also a pear-like fruit fire such as cucumber spotted bacterial disease, rice brown streak disease, rice seedling bacterial disease, tea red burning disease, citrus ulcer disease, cabbage black rot, peach perforated bacterial disease, apple and pear Wound disease, soft rot, kidney wilt bacterial disease, root carcinoma disease, citrus stabon disease, tomato ulcer disease, citrus greening disease, rice wilt bacterial disease, rice leaf sheath browning disease, solanaceae blight, rice white leaf It has also been found to be effective against bacterial diseases such as blight, grape / apple blacklot disease, soft rot, and grape head carcinoma. In addition, thiazinyl has white crotch, ume powdery mildew, peach / ume black streak, oyster circle leaf fall, oyster anthracnose disease, oyster leaf blight, oyster horn leaf fall, oyster black leaf disease, loquat anthracnose, It is also known to be effective for mango anthracnose, banana sigatoka disease, banana panama disease, root cancer and the like.

Although the typical compound of the heterocyclic compound represented by general formula (I) is illustrated in Table 1, this invention is not limited to these. In the table, “c-” represents cyclo, “hal” represents a halogen atom, and “Ph” represents a phenyl group. Thiazinyl is No. No. 1 compound, isotianil is No. 1; 12 compounds.

In the present invention, the plant growth regulating effect or the plant growth regulating action means an increase in the number of leaves of plants (crop), plant height elongation, stem enlargement, root generation and / or activation of growth (promoting rooting, amount of elongation). Increase in planting or early rooting), increase in plant vitality, decrease in leaf dryness, increase in plant salt tolerance, drought resistance and low temperature resistance, fruit coloration, cereals, fruits and potatoes And the like, and the increase in sugar content of fruits and potatoes, etc., which in turn leads to improved crop quality and / or increased yield. In addition, the plant growth regulation effect or plant growth regulation effect in banana leads to an increase in the yield of banana fruit by increasing the number of leaves (functional leaves) or promoting the growth (hypertrophy) of the new false stem (child stock). It is.

When using the plant growth regulator of the present invention, if there is a commercially available preparation such as thiazinyl or isothianyl, the preparation can be used as it is. In addition, the heterocyclic compound (active ingredient compound) represented by the general formula (I) is mixed and dissolved in an appropriate inert carrier together with a surfactant and, if necessary, an auxiliary agent in an appropriate ratio. In a suitable inert carrier or optionally with adjuvants in appropriate proportions to dissolve, separate, suspend, mix, impregnate, adsorb or attach, and form a suitable dosage form such as a suspension. What is necessary is just to formulate and use for a turbidity agent (flowable agent), a milk suspension agent, an emulsion, a liquid agent, a wettable powder, a granular wettable powder, a granule, a powder agent, a tablet, a jumbo agent, or a pack agent.

The inert carrier that can be used in the present invention may be either solid or liquid. Examples of materials that can be used as a solid inert carrier include vegetable powders (for example, soybean flour, cereal flour, and wood flour). , Bark powder, sawdust, tobacco stem powder, walnut shell powder, bran, fiber powder, residues after extraction of plant extracts), synthetic polymers such as ground synthetic resin, clays (eg kaolin, bentonite, acid clay) Etc.), talc (for example, talc, pyrophyllite, etc.), silica (for example, diatomaceous earth, silica sand, mica, white carbon (hydrous finely divided silicon, hydrous silicic acid, synthetic highly dispersed silicic acid, with calcium silicate as the main component depending on the product) Some).}, Activated carbon, natural minerals (eg, sulfur powder, pumice, attapulgite, zeolite, etc.), calcined diatomaceous earth, brick ground, fly Sand, plastic carrier, etc. (eg, polyethylene, polypropylene, polyvinylidene chloride, etc.), inorganic mineral powders such as calcium carbonate and calcium phosphate, chemical fertilizers such as ammonium sulfate, phosphate, nitrate, urea, and ammonium chloride, compost, etc. These can be used alone or in the form of a mixture of two or more.

Materials that can be used as a liquid inert carrier in the present invention include those having solvent ability, and those capable of dispersing an active ingredient compound with the aid of an auxiliary agent without having solvent ability. The following carriers may be selected as typical examples, and these may be used alone or in the form of a mixture of two or more: for example, water, alcohols (eg, methanol, ethanol, isopropyl alcohol, butanol) , Ethylene glycol, etc.), ketones (eg, acetone, methyl ethyl ketone, methyl isobutyl ketone, diisobutyl ketone, cyclohexanone, etc.), ethers (eg, ethyl ether, dioxane, cellosolve, dipropyl ether, tetrahydrofuran, etc.), aliphatic hydrocarbons (Eg kerosene, mineral oil, etc.) Aromatic hydrocarbons (eg, benzene, toluene, xylene, solvent naphtha, alkylnaphthalene, etc.), halogenated hydrocarbons (eg, dichloroethane, chloroform, carbon tetrachloride, etc.), esters (eg, ethyl acetate, diisopropyl phthalate) , Dibutyl phthalate, dioctyl phthalate, etc.), amides (eg, dimethylformamide, diethylformamide, dimethylacetamide, etc.), nitriles (eg, acetonitrile, etc.) and dimethyl sulfoxides.

As other adjuvants, typical adjuvants exemplified below can be mentioned. These adjuvants can be used according to the purpose, and may be used alone or in combination of two or more. In the present invention, it is possible to use no adjuvant.
Surfactants can be used for the purpose of emulsifying, dispersing, solubilizing and / or wetting the active ingredient compound, for example, polyoxyethylene alkyl ether, polyoxyethylene alkyl aryl ether, polyoxyethylene higher fatty acid ester, polyoxyethylene Illustrative surfactants such as ethylene resin acid ester, polyoxyethylene sorbitan monolaurate, polyoxyethylene sorbitan monooleate, alkylaryl sulfonate, naphthalene sulfonic acid condensate, lignin sulfonate or higher alcohol sulfate be able to.

As other adjuvants, the following typical adjuvants can be mentioned, and these adjuvants are used depending on the purpose, and may be used alone or in combination with two or more kinds of adjuvants. Although it is good, it is possible not to use any adjuvant in the present invention.
Surfactants can be used for the purpose of emulsifying, dispersing, solubilizing and / or wetting of the active ingredient compound, such as polyoxyethylene alkyl ether, polyoxyethylene alkyl aryl ether, polyoxyethylene higher fatty acid ester, polyoxyethylene. Examples include surfactants such as resin acid esters, polyoxyethylene sorbitan monolaurate, polyoxyethylene sorbitan monooleate, alkylaryl sulfonates, naphthalene sulfonic acid condensates, lignin sulfonates, and higher alcohol sulfates. it can.
As a peptizer for a suspension product, for example, auxiliary agents such as naphthalenesulfonic acid condensate and condensed phosphate can be used.
As the antifoaming agent, for example, an auxiliary agent such as silicone oil can be used.

The blending ratio of the active ingredient compound in 100 parts by mass of the plant growth regulator of the present invention can be adjusted as necessary and is not particularly limited, but it may be appropriately selected from the range of usually 0.1 to 50 parts by mass. Preferably, it may be appropriately selected from the range of 1 to 50 parts by mass.

The cultivated plant in which the plant growth regulator of the present invention can be used is not particularly limited. For example, cereals (for example, rice, barley, wheat, rye, oats, corn, potato, etc.), beans (for example, Soybeans, red beans, broad beans, peas, peanuts, etc.), fruit trees and fruits (eg, apples, citrus fruits, pears, grapes, peaches, plums, cherry peaches, walnuts, almonds, bananas, strawberries, etc.), vegetables (eg, Cabbage, tomato, spinach, broccoli, lettuce, onion, leek, bell pepper, etc.), root vegetables (eg, carrot, potato, sweet potato, radish, lotus root, turnip, etc.), processing crops (eg, cotton, hemp, mulberry, Mitsumata, rapeseed, beet, hop, sugar cane, sugar beet, olive, gum, coffee, tobacco, tea, etc.), moss (eg, pumpkin, Cucumbers, watermelons, melons, etc.), pastures (eg, orchard grass, sorghum, timothy, clover, alfalfa, etc.), turf (eg, Korean turf, bentgrass, etc.), crops for fragrances (eg, lavender, rosemary, etc.) , Thyme, parsley, pepper, ginger, etc.). Rice, wheat, corn, soybeans or potatoes are important for food production, and fruit trees and fruits are important from the viewpoint of economic value in certain regions. East Asia, Southeast Asia, West Asia, Latin America, Africa Bananas are also important in and the use of the present invention in these cultivated plants is preferred.

Among these cultivated plants, it is preferable to use them in the family Glycaceae, and examples of Glycaceae plants include Gros Michel, Cavendish, Dwarf Cavendish, and Dwarf Chinese. Enano, Catura, Giant Cavendish, Gran Enano, Grande Nine, Williams Hybrid, Valerie Vals Poyo, Lacatan, Monte Ku Strike (Monte cristo), can be exemplified boat Rondo (Bout rond), etc., but is not limited thereto.

Particularly preferred are all bananas including Giant Cavendish, Dwarf Cavendish, Cavendish, Plantain, Red Banana, Apple Banana, Monkey Banana, Island Banana, etc. that are generally cultivated for food.

In addition, herbicide resistance genes, insecticidal pest resistance genes, anti-pathogenic substance production genes, oil component modification and amino acid content enhancement traits are useful for cultivated plants in which the plant growth regulator of the present invention can be used. The same plant that is a genetically modified organism (GMO) that has undergone gene conversion is also included.

In the use of the plant growth regulator of the present invention, the method of use or the method of regulating the growth of cultivated plants, the above-mentioned preparation can be expressed as it is, or appropriately diluted with water, etc. By applying an effective amount to the target cultivated plant, applying or injecting it, and irrigating the surrounding soil of the target cultivated plant, a desired plant growth regulating action can be expressed. Particularly, in the case of bananas, an excellent plant growth regulating action can be expressed by spraying or coating the stems and leaves and leaf sheaths, injecting them with a syringe or the like, and irrigating the surrounding soil.

In normal plantation cultivation, the number of bananas cultivated per hectare (ha) is about 1500 to 2000, and the processing amount is the blending ratio of active ingredients, meteorological conditions, formulation form, treatment time, treatment method However, it varies depending on the processing place and the like and is not particularly limited. Suspension (flowable) is a frequently used dosage form. In the case of this agent, 1 to 10 L (chemical solution) per hectare is applied to the target plant or the surrounding soil where the target plant is growing in the spraying or irrigation treatment. Depending on the concentration, specific gravity, etc., the amount of the active ingredient is preferably in the range of 300 g to 3000 g / ha). In the infusion treatment, the medicinal solution diluted to a predetermined concentration is appropriately selected from the range of 0.2 ml to 10 ml per plant (depending on the concentration of the medicinal solution, specific gravity, etc., but the amount of active ingredient is preferably in the range of 40 mg to 800 mg). And then injected into the pseudostem. According to such injection treatment, the amount of drug used can be reduced, and unlike the case of spraying, the user is not exposed to the chemical solution (in the case of general spraying), and uses the plant growth regulator of the present invention more safely. It is something that can be done.

When using the plant growth regulator of the present invention or when controlling the growth of cultivated plants using the plant growth regulator, in order to control pests that occur at the same time, agricultural or horticultural fungicides or agricultural and horticultural use Insecticides can be used simultaneously. Although the typical compound of this agricultural and horticultural fungicide or agricultural and horticultural insecticide is illustrated below, the said agricultural and horticultural fungicide or agricultural and horticultural insecticide is not limited to these.

Agricultural and horticultural fungicides include, for example, isoprothiolane, tricyclazole, azoxystrobin, pyracrostrobin, propiconazole, copper-ol-8, and organic copper-ol. , Methinostrobin, carpropamide, fthalide, kasugamycin, pyroquilon, probenazole, cibenzol-S-methyl-S-methyl-S-methyl-S-methyl lutolanil, mepronil, furamethpyr, pencyclone, thifluzamide, validamycin, diclomezine, dimimzine. Hexaconazole, difenoconazole, bittertanol,

Epoxyconazole, triadimephone, prochloraz, fenpropimorph, tridemorph, metalaxyl, copper copper (p), basic copper chloride (p) sulfate, mancozeb, propineb, ziram, thiuram, cymoxanil, chlorothalonil, difenoconazole, difenoconazole, difenoconazole xin, iprodione, procymidone, benomyl, thiophanate-methyl, carbendazim, fosetyl-aluminimis Oxolinic acid, fludioxonil, mepanipyrim, cyprodinil, pyrimethanil, tolcrofos-methyl, fenoxanil and phenoxil Kill.

Examples of agricultural and horticultural insecticides include benfuracarb, carbosulfan, PHC (propoxur), furatiocarb, mesomyl, NAC (carbaryl), bendiocarb (bendiocarb) analycarb), imidacloprid, nitenpyram, acetamiprid, thiamethoxam, dithiophthinothin, dithotefurone (Diazinon), trichlorfon (trichlorfon), fenthion (fenthion), acephate (acephate),

Isoxathion, isofenphos, chlorpyrifos-methyl, chlorfenvinphos, dimethoate, phonofos, pyridafenthion cartap, thiocyclam, bensultap, cycloprothrin, etofenprox, silafluofen, tefluthrin, buprofin ofezin), flufenoxuron (flufenoxuron),

Cyromazine (cyromazine), Rufenyuron (lufenuron), tebufenozide (tebufenozide), methoxyfenozide (methoxyfenozide), chromafenozide (chromafenozide), oxamyl (oxamyl), pyraclofos (pyraclofos), fosthiazate (fosthiazate), fenpyroximate (fenpyroximate), fipronil (fipronil), Endosulfan, endaldehyde, metadealdehyde, emamectin benzoate, spinosad, chlorfenapyr, indoxacarb (indo) Mixed with Oxacarb) or the like can be used.

Although the typical formulation example and test example of this invention are illustrated below, this invention is not limited to these. In addition, in a prescription example or a test example, having a part shows a mass part.
[Formulation Example 1]
Compound represented by general formula (I) 10 parts Xylene 70 parts N-methylpyrrolidone 10 parts Mixture of polyoxyethylene nonylphenyl ether and calcium alkylbenzenesulfonate 10 parts The above is uniformly mixed and dissolved to prepare an emulsion.

[Formulation Example 2]
Compound represented by formula (I) 3 parts Clay powder 82 parts Diatomaceous earth powder 15 parts The above is mixed and ground uniformly to obtain a powder.

[Formulation Example 3]
Compound represented by general formula (I) 5 parts Bentonite and clay mixed powder 90 parts Calcium lignin sulfonate 5 parts The above is uniformly mixed, kneaded with an appropriate amount of water, granulated and dried to give granules And

[Formulation Example 4]
Compound represented by general formula (I) 20 parts Kaolin, synthetic highly dispersed silicic acid 75 parts Polyoxyethylene nonylphenyl ether and calcium alkylbenzenesulfonate 5 parts The above is uniformly mixed and ground to obtain a wettable powder.

[Formulation Example 5]
Compound represented by general formula (I) 30 parts Solpol 3105 (manufactured by Toho Chemical Co., Ltd.) 5 parts propylene glycol 5 parts Rhodopol (manufactured by Rhone-Poulenc) 2 parts water 58 parts The above is uniformly mixed and dispersed in water. To make a suspension (flowable).

Test Example 1 Increase test of number of functional leaves in banana (injection process)
A drug solution prepared by diluting the drug (active ingredient: Compound No. 1) of the pharmaceutical formulation of Formulation Example 5 with water 5 times in an amount of 10 ml per strain (600 mg as the active ingredient amount) in the pseudostem part of the banana child stock or the parent strain Was injected into a place about 1 m above the ground using a 10 ml syringe. From the 11th day after the drug treatment, the total number of functional leaves per plant (healthy leaves functioning) was calculated, and thereafter, every week, the same calculation was made for 7 weeks (1 ward, 4 systems). In addition, the number of functional leaves in the parent pseudostem-treated section indicates the number of functional leaves of child pseudostem that comes from the same root.
The results are shown in Table 2.

As shown in Table 2, in Test Example 1, compound no. In the treated group of 1 (thiazinyl), the functional leaf of the banana was clearly increased in comparison with the non-treated group in both the parent pseudostem treatment and the child pseudostem treatment. Therefore, it was clarified that the plant growth regulating effect of the plant growth regulator of the present invention is remarkable and contributes to the healthy growth of bananas.

Test Example 2 Plant growth control effect on parent strain by parent strain treatment (injection treatment)
A drug solution prepared by diluting the drug (active ingredient: Compound No. 1) of the pharmaceutical formulation of Formulation Example 5 with water to 10 times the amount of 10 ml (600 mg as the active ingredient amount) per strain in the pseudostem part of the parent strain It inject | poured into the location about 1 m above-ground part using the syringe. After the chemical treatment, the diameter of the pseudo stalk, the height of the plant of the offspring, and the yield of banana were measured and calculated for a predetermined number of days (1 zone, 80 continuous operation). In addition, for the purpose of controlling naturally occurring diseases, chlorothalonil 72% flowable at a dose of 1 L / ha and 100 L / ha sprayed water about every week from 10 days to 125 days after treatment in all test plots The foliage spraying process is performed at The results are shown in Table 3.

As shown in Table 3, in Test Example 2, compound no. In the treated group of 1 (thiazinyl), the diameter of the pseudostem and the height of the plant line were significantly increased at all time points as compared with the untreated group, and as a result, the banana yield was also clearly increased. This test example is another example showing the remarkable effect of the present invention.

Test Example 3 Plant growth control effect by spraying or irrigation treatment The drug (active ingredient: Compound No. 1) of the formulation of Formulation Example 5 is sprayed on the foliage part or in the stock soil in an amount of 3 L per 1 ha (effective ingredient quantity: 900 g) Irrigated. After treatment with chemicals, we measured and calculated functional leaves per plant (healthy leaves), plant height, pseudostem diameter, plant height of offspring, and banana yield (specifically 80 stations) System). In addition, for the purpose of controlling naturally occurring diseases, chlorotalonyl 72% flowable agent at a dose of 1 L / ha and a sprayed water amount of 100 L / ha every week from 7 days to 122 days after treatment in all test plots. The foliage spraying process is performed at The results are shown in Table 4.

As shown in Table 4, in Test Example 3, compound no. In the 1 (thiazinyl) treatment group, the number of functional leaves per plant, plant height, pseudostem diameter, and plant height of the offspring were significant at all survey points in both the foliage spray treatment and the soil irrigation treatment. As a result, the banana yield was also clearly increased. This test example is yet another example showing the remarkable effects of the present invention.

Test Example 4 Effect of plant growth control on parent plants by treatment with various drugs (injection treatment)
A preparation prepared according to Formulation Example 5 or Formulation Example 5 (active ingredient: Compound No. 1, Compound No. 7, and Compound No. 12) was diluted with water to a predetermined dosage, and the parent pseudostem of banana The amount of 10 ml per strain is injected into a portion about 1 m above the ground using a syringe, and the plant height and pseudostem diameter of the offspring are measured about every 2 weeks from the 17th day after the drug treatment. The average value was calculated (1 ward 20 continuous system). In addition, for the purpose of controlling naturally occurring diseases, stalks and leaves of chlorothalonil 72% flowable agent at a dose of 1 L / ha and a sprayed water amount of 100 L / ha every week after 7 days of treatment in all test plots The spraying process is performed.

As shown in Table 5, from the results of this test, the treatment group for the compounds represented by the general formula (I) of the present invention (Compound No. 1, Compound No. 7 and Compound No. 12) is the pseudostem of the parent strain. The plant height and the pseudostem diameter of the banana seedlings were significantly increased by injecting into the part. That is, it was further clarified that the plant growth regulator of the present invention has an excellent plant growth promoting effect.

According to the plant growth regulator and its method of use of the present invention, the healthy growth of cultivated plants is promoted, the yield is increased, the treatment of existing pest control agents can be reduced, and the burden on the environment is reduced. This is especially true for bananas. Therefore, the present invention greatly contributes to the development of agriculture and related industries.

Claims (10)

1. Formula (I)
   

   

   
   (Wherein A represents a nitrogen atom or C-hal (where hal represents a halogen atom), B represents a nitrogen atom, R ¹ represents a halogen atom; a C ₁ -C ₆ alkyl group or C ₃₎ -C ₆ .R ² showing a cycloalkyl group of the hydroxyl _group; C 1 -C ₆ alkoxy group; a benzyloxy group; may be the same or different, a halogen atom, a cyano _group, C 1 -C ₆ alkyl, _{C 1} A benzyloxy group having one or more substituents selected from a —C ₆ haloalkyl group, a C ₁ -C ₆ alkoxy group or a C ₁ -C ₆ haloalkoxy group; a phenylamino group or the same or different , halogen atom, cyano _group, C 1 -C _{6 alkyl,} C 1 -C ₆ haloalkyl _group, C 1 -C ₆ alkoxy or _C 1 -C ₆ 1 or more selected from haloalkoxy groups Plant growth regulators for cultivated plants, characterized by containing a heterocyclic compound as an active component represented by.) Showing a phenylamino group having a substituent on the ring.
2. The plant growth regulator according to claim 1, wherein the cultivated plant is rice, wheat, corn, soybean, potato or banana.
3. The plant growth regulator according to claim 2, wherein the cultivated plant is a banana.
4. The plant growth regulator according to claims 1 to 3, wherein the heterocyclic compound represented by the general formula (I) is thiazinyl or isotianil.
5. Formula (I)
   

   

   
   (Wherein A represents a nitrogen atom or C-hal (where hal represents a halogen atom), B represents a nitrogen atom, R ¹ represents a halogen atom; a C ₁ -C ₆ alkyl group or C ₃₎ -C ₆ .R ² showing a cycloalkyl group of the hydroxyl _group; C 1 -C ₆ alkoxy group; a benzyloxy group; may be the same or different, a halogen atom, a cyano _group, C 1 -C ₆ alkyl, _{C 1} A benzyloxy group having one or more substituents selected from a —C ₆ haloalkyl group, a C ₁ -C ₆ alkoxy group or a C ₁ -C ₆ haloalkoxy group; a phenylamino group or the same or different , halogen atom, cyano _group, C 1 -C _{6 alkyl,} C 1 -C ₆ haloalkyl _group, C 1 -C ₆ alkoxy or _C 1 -C ₆ 1 or more selected from haloalkoxy groups A phenylamino group having a substituent on the ring.) Use of a plant growth regulator characterized by treating a cultivated plant with an effective amount of a plant growth regulator comprising a heterocyclic compound represented by Method.
6. The method for using a plant growth regulator according to claim 5, wherein the cultivated plant is rice, wheat, corn, soybean, potato or banana.
7. The method for using a plant growth regulator according to claim 6, wherein the cultivated plant is a banana.
8. The method for using a plant growth regulator according to claims 5 to 7, wherein the heterocyclic compound represented by the general formula (I) is thiazinyl or isothianyl.
9. The method for using a plant growth regulator according to claims 5 to 8, wherein the treatment on the cultivated plant is a spraying treatment, a coating treatment, an injection treatment or a soil irrigation treatment.
10. Formula (I)
    

    

    
    (Wherein A represents a nitrogen atom or C-hal (where hal represents a halogen atom), B represents a nitrogen atom, R ¹ represents a halogen atom; a C ₁ -C ₆ alkyl group or C ₃₎ -C ₆ .R ² showing a cycloalkyl group of the hydroxyl _group; C 1 -C ₆ alkoxy group; a benzyloxy group; may be the same or different, a halogen atom, a cyano _group, C 1 -C ₆ alkyl, _{C 1} A benzyloxy group having one or more substituents selected from a —C ₆ haloalkyl group, a C ₁ -C ₆ alkoxy group or a C ₁ -C ₆ haloalkoxy group; a phenylamino group or the same or different , halogen atom, cyano _group, C 1 -C _{6 alkyl,} C 1 -C ₆ haloalkyl _group, C 1 -C ₆ alkoxy or _C 1 -C ₆ 1 or more selected from haloalkoxy groups A phenylamino group having a substituent on the ring.) An effective amount of a plant growth regulator comprising a heterocyclic compound represented by the following formula as an active ingredient is treated to a cultivated plant, and the number of leaves or functional leaves of the cultivated plant: Increase of plant height, enlargement of new pseudostem or stem, promotion of rooting, increase of elongation and / or activation of root generation and / or growth, which is earlier in rooting time, enhancement of plant vitality , Decrease in withering of lower leaves, increase of salt tolerance, drought resistance and low temperature resistance of plants, promotion of fruit coloring, promotion of growth of cereals, fruits, potatoes, etc., improvement of sugar content of fruits, potatoes, etc. A method for regulating the growth of cultivated plants, comprising achieving one or more of crop quality improvement and / or yield increase.