JP2014088322A - Plant growth regulator and use method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a novel plant growth regulator having high efficiency in a culture of crops such as banana culture.SOLUTION: A plant growth regulator for culture plants contains a heterocyclic compound represented by the general formula (I), where A represents a nitrogen atom or C-hal, where hal represents a halogen atom, B represents a nitrogen atom, Rrepresents a halogen atom, an alkyl group or a cycloalkyl group, Rrepresents a hydroxyl group, an alkoxy group, a benzyloxy group, a benzyloxy group having one or more substituents on a ring, and a phenylamino group may have a substituent on the ring.

Description

  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 the yield of bananas and the number of leaves, a new pseudostem The present invention provides a drug excellent in the effect of regulating plant growth such as growth promotion (hypertrophy) of part (children).

  The cultivated plant belonging to the genus Baxaceae, in particular banana, is a general term for a group of varieties that eat 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 12-13 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 chemicals (plant growth regulators) that grow crops to grow crops in a healthy manner.

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

The Pesticide Manual 14th Edition (British Crop Production Council)

  As described above, in the cultivation of crops such as bananas, attempts have been made to grow crops in a healthy manner by using plant growth regulators for crops to 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.

（式中、Ａは窒素原子又はＣ−ｈａｌ（式中、ｈａｌはハロゲン原子を示す。）を示す。Ｂは窒素原子を示す。Ｒ^１はハロゲン原子；Ｃ_１−Ｃ_６アルキル基又はＣ_３−Ｃ_６シクロアルキル基を示す。Ｒ^２はヒドロキシル基；Ｃ_１−Ｃ_６アルコキシ基；ベンジルオキシ基；同一又は異なっても良く、ハロゲン原子、シアノ基、Ｃ_１−Ｃ_６アルキル基、Ｃ_１−Ｃ_６ハロアルキル基、Ｃ_１−Ｃ_６アルコキシ基又はＣ_１−Ｃ_６ハロアルコキシ基から選択される１以上の置換基を環上に有するベンジルオキシ基；フェニルアミノ基又は同一若しくは異なっても良く、ハロゲン原子、シアノ基、Ｃ_１−Ｃ_６アルキル基、Ｃ_１−Ｃ_６ハロアルキル基、Ｃ_１−Ｃ_６アルコキシ基又はＣ_１−Ｃ_６ハロアルコキシ基から選択される１以上の置換基を環上に有するフェニルアミノ基を示す。）で表されるヘテロ環化合物を有効成分として含有することを特徴とする栽培植物用の植物成長調節剤。
（２）栽培植物がイネ、コムギ、トウモロコシ、大豆、ジャガイモ又はバナナである前記植物成長調節剤。
（３）栽培植物がバナナである前記植物成長調節剤。
（４）一般式（I）で表されるヘテロ環化合物がチアジニル又はイソチアニルである前記いずれかの植物成長調節剤。
（５）一般式（I）

（式中、Ａは窒素原子又はＣ−ｈａｌ（式中、ｈａｌはハロゲン原子を示す。）を示す。Ｂは窒素原子を示す。Ｒ^１はハロゲン原子；Ｃ_１−Ｃ_６アルキル基又はＣ_３−Ｃ_６シクロアルキル基を示す。Ｒ^２はヒドロキシル基；Ｃ_１−Ｃ_６アルコキシ基；ベンジルオキシ基；同一又は異なっても良く、ハロゲン原子、シアノ基、Ｃ_１−Ｃ_６アルキル基、Ｃ_１−Ｃ_６ハロアルキル基、Ｃ_１−Ｃ_６アルコキシ基又はＣ_１−Ｃ_６ハロアルコキシ基から選択される１以上の置換基を環上に有するベンジルオキシ基；フェニルアミノ基又は同一若しくは異なっても良く、ハロゲン原子、シアノ基、Ｃ_１−Ｃ_６アルキル基、Ｃ_１−Ｃ_６ハロアルキル基、Ｃ_１−Ｃ_６アルコキシ基又はＣ_１−Ｃ_６ハロアルコキシ基から選択される１以上の置換基を環上に有するフェニルアミノ基を示す。）で表されるヘテロ環化合物を有効成分とする植物成長調節剤の有効量を栽培植物に処理することを特徴とする植物成長調節剤の使用方法。
（６）栽培植物がイネ、コムギ、トウモロコシ、大豆、ジャガイモ又はバナナである植物成長調節剤の前記使用方法。
（７）栽培植物がバナナである植物成長調節剤の前記使用方法。
（８）一般式（I）で表されるヘテロ環化合物がチアジニル又はイソチアニルである植物成長調節剤の前記いずれかの使用方法。
（９）栽培植物への処理が散布処理、塗布処理、注入処理又は土壌潅注処理である植物成長調節剤の前記いずれかの使用方法。
（１０）一般式（I）

（式中、Ａは窒素原子又はＣ−ｈａｌ（式中、ｈａｌはハロゲン原子を示す。）を示す。Ｂは窒素原子を示す。Ｒ^１はハロゲン原子；Ｃ_１−Ｃ_６アルキル基又はＣ_３−Ｃ_６シクロアルキル基を示す。Ｒ^２はヒドロキシル基；Ｃ_１−Ｃ_６アルコキシ基；ベンジルオキシ基；同一又は異なっても良く、ハロゲン原子、シアノ基、Ｃ_１−Ｃ_６アルキル基、Ｃ_１−Ｃ_６ハロアルキル基、Ｃ_１−Ｃ_６アルコキシ基又はＣ_１−Ｃ_６ハロアルコキシ基から選択される１以上の置換基を環上に有するベンジルオキシ基；フェニルアミノ基又は同一若しくは異なっても良く、ハロゲン原子、シアノ基、Ｃ_１−Ｃ_６アルキル基、Ｃ_１−Ｃ_６ハロアルキル基、Ｃ_１−Ｃ_６アルコキシ基又はＣ_１−Ｃ_６ハロアルコキシ基から選択される１以上の置換基を環上に有するフェニルアミノ基を示す。）で表されるヘテロ環化合物を有効成分とする植物成長調節剤の有効量を栽培植物に処理し、該栽培植物の葉数又は機能葉数の増加、草丈伸長、新偽茎部又は茎の肥大化、発根促進、伸長量の増加及び／又は発根時期の早期化である根の発生及び／又は生育の活発化、植物の活力増進、下葉の枯れ上がりの減少、植物の耐塩性、耐旱ばつ性及び耐低温性の増加、果実の着色促進、穀類・果実・イモ類等の成長の促進、果実・イモ類等の糖度向上、作物の品質向上及び／又は収穫量増加の１つ又は２つ以上が達成されることを含む、栽培植物の成長を調節する方法。 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 on the ring; 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 on the ring; 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 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 the following formula: 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 said any usage method of the plant growth regulator whose process to a cultivated plant is a spraying process, application | coating process, injection | pouring process, or a soil irrigation process.
(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 on the ring; 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 plant salt tolerance, drought tolerance and low temperature resistance, promote fruit coloring, promote growth of cereals, fruits, potatoes, etc., improve sugar content of fruits, potatoes, etc. A method of 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.) Moreover, it is known that compounds other than these two compounds can also 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 pseudostems (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 regulation 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 a crop, plant growth regulation effects such as an increase in the yield of bananas and the number of leaves, and growth promotion (hypertrophy) of a new pseudostem part (child stock) 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 manufacture by the method as described in ~ 3.
Of the heterocyclic compounds represented by the general formula (I) which are active ingredients of the plant growth regulator of the present invention, the following are preferred as examples:
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 , cyano group, C ₁ -C ₆ alkyl or C ₁ -C ₆ one or more substituents selected from an alkoxy group is a phenylamino group having on the ring compounds.

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 wherein R ¹ is CH ₃ or c-C ₃ H ₇ .
Moreover, in the heterocyclic compound represented by the above general formula (I), when A is C-hal, it is preferable that R ¹ is 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.

  Of the heterocyclic compounds represented by the general formula (I), thiazinyl and isothianyl are most preferable as the plant growth regulator of the present invention. Among 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 wilt, wheat red rust, wheat black rust, wheat yellow rust, wheat eye rot, wheat leaf blight, wheat yellow, wheat streak, wheat naked scab, Wheat scab, wheat to smut, potato powdery scab, potato scab, potato / tomato It is known that it exhibits excellent control effects against plague, potato summer plague, potato black rot, potato ring rot, ring lot disease, and the like.

  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 stubborn disease, tomato ulcer disease, citrus greening disease, rice wilt bacterial disease, rice leaf sheath browning disease, solanaceous wilt disease, 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 effect 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 pseudostem (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 granule 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) May also be included.)}, Activated carbon, natural minerals (eg, sulfur powder, pumice, attapulgite, zeolite, etc.), calcined diatomaceous earth, brick ground, fly-up , Sand, plastic carrier (eg, polyethylene, polypropylene, polyvinylidene chloride, etc.), inorganic mineral powders such as calcium carbonate and calcium phosphate, chemical fertilizers or compost such as ammonium sulfate, phosphate, nitrate, urea, salt, 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 (For example, 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 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) Mitsumata, Rapeseed, Beet, Hop, Sugarcane, Sugar beet, Olive, Gum, Coffee, Tobacco, Tea, etc.), Mosquito (eg, Pumpkin, Ki Cucumbers, watermelons, melons, etc.), pastures (eg, orchard grass, sorghum, timothy, clover, alfalfa, etc.), turf (eg, ginseng grass, 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 in terms 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, the use to the Ganoderma family is preferred, and examples of Ganoderma family plants include Gros Michel, Cavendish, Dwarf Cavendish, Dwarf Kinese, Enano, Catura, Giant Cavendish, Gran Enano, Grande Nine, Williams Hybrid, Valero, Valero, Valero Poyo, Lacatan, Monte Cristo (Mo te 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 and the like that are generally grown 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 is 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 the sheaths, injecting them with a syringe or the like, and irrigating the surrounding soil.

  In normal plantation cultivation, the number of bananas grown per hectare (ha) is cultivated about 1500 to 2000, and the processing amount is the blending ratio of active ingredients, weather 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 agent) is a frequently used dosage form. In the case of the same agent, 1 to 10 L (chemical solution) per hectare of the target plant or the surrounding soil where the target plant is growing in the spraying treatment or irrigation treatment. The amount of the active ingredient is preferably in the range of 300 g to 3000 g / ha, but may be appropriately selected and sprayed or irrigated. In the infusion treatment, a 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 active ingredient amount 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.

  Examples of agricultural and horticultural fungicides include isoprothiolane, tricyclazole, azoxystrobin, pyracrostrobin, propiconazole, and organic copper (copper). , Methminostrobin, carpropamide, fthalide, kasugamycin, pyroquilon, probenazole, ciobyl-S-methyl-S-methyl (S-methyl) utolanil, mepronil, furamethpyr, pencyclone, thifluzamide, validamycin, diclomezine, ferrimzone (f). Hexaconazole, difenoconazole, bittertanol,

Epoxyconazole, triadimefone, prochloraz, fenpropimorph, tridemorph, metalaxyl, copper copper (p), basic copper chloride (p), basic copper chloride (p) sulfate, mancozeb, propineb, ziram, thiuram, cymoxanil, chlorothalonil, difenoconazole, difenoconazole, difenoconazole in), iprodione, procymidone, benomyl, thiophanate-methyl, carbendazim, fosetyl-aluminoxilic, oxolinic acid, fludioxonil, mepanipyrim, cyprodinil, pyrimethanil, tolcrofos-methyl, fenoxanil and phenoxil Can The

  Agricultural and horticultural insecticides include, for example, benfuracarb, carbosulfan, PHC (propoxur), furatiocarb, mesomyl, NAC (carbaryl), bendiocarb (bendiocarb) analycarb), imidacloprid, nitenpyram, acetamiprid, thiamethoxam, dithiophthine, dithotefurone, dinotefurone diazinon), trichlorfon (trichlorfon), fenthion (fenthion), acephate (acephate),

Isoxathion, isofenphos, chlorpyrifos-methyl, chlorfenvinphos, dimethoate, phonofos, pyridafenthion cartap, thiocyclam, bensultap, cycloprothrin, etofenprox, silafluofen, tefluthrin, buprofin, 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 components are 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 obtained by diluting the drug of the formulation of Formulation Example 5 (active ingredient: thiazinyl) 5 times with water, 10 ml of 10 ml per volume (600 mg as the amount of active ingredient) in the pseudostem part of the banana child stock or the parent strain It inject | poured into the location about 1 m above-ground part using the 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, in the thiazinyl-treated group, the functional leaf of the banana was clearly increased compared to the untreated 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 regulating agent 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 parental treatment (infusion treatment)
A drug solution obtained by diluting the drug of the formulation of Formulation Example 5 (active ingredient: thiazinyl) 5 times with water, 10 ml of 10 ml per volume (600 mg as the amount of active ingredient) in the pseudostem part of the banana child stock or the parent strain It inject | poured into the location about 1 m above-ground part using the syringe. After the chemical treatment, the circumference of the pup pseudostem, the plant height of the offspring, and the yield of the banana were measured and calculated for a predetermined number of days (1 ward 80-run system). 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, in the thiazinyl-treated group, the circumference of the pup pseudostem and the plant height of the offspring significantly increased compared to the untreated group, and as a result, The banana yield was also clearly increasing. This test example is another example showing the remarkable effect of the present invention.

Test Example 3 Plant growth regulation effect by spraying or irrigation treatment The drug (active ingredient: thiazinyl) of the formulation example of Formulation Example 5 was sprayed on the foliage part or irrigated in the stock soil at an amount of 3 L per 1 ha (effective ingredient amount: 900 g) . After chemical treatment, measured and calculated functional leaves per plant (healthy leaves), plant height, false stem circumference, plant height of offspring, and banana yield (1 ward) 80 series). 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 2, in Test Example 3, in the thiazinyl-treated group, the number of functional leaves per plant, plant height, pseudostem circumference, offspring, compared to the untreated group in the foliage treatment and soil irrigation treatment The plant height of all increased significantly at all surveys, resulting in a clear increase in banana yield. This test example is yet another example showing the remarkable effects of the present invention.

  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)

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 on the ring; 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.   The plant growth regulator according to claim 1, wherein the cultivated plant is rice, wheat, corn, soybean, potato or banana.   The plant growth regulator according to claim 2, wherein the cultivated plant is a banana.   The plant growth regulator according to claims 1 to 3, wherein the heterocyclic compound represented by the general formula (I) is thiazinyl or isothianyl. 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 on the ring; 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 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 the following formula: Method.   The method for using a plant growth regulator according to claim 5, wherein the cultivated plant is rice, wheat, corn, soybean, potato or banana.   The method for using a plant growth regulator according to claim 6, wherein the cultivated plant is a banana.   The method for using a plant growth regulator according to any one of claims 5 to 7, wherein the heterocyclic compound represented by the general formula (I) is thiazinyl or isothianyl.   The method for using a plant growth regulator according to any one of claims 5 to 8, wherein the treatment to the cultivated plant is a spraying treatment, a coating treatment, an injection treatment or a soil irrigation treatment. 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 on the ring; 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 plant salt tolerance, drought tolerance and low temperature resistance, promote fruit coloring, promote growth of cereals, fruits, potatoes, etc., improve sugar content of fruits, potatoes, etc. A method of regulating the growth of cultivated plants, comprising achieving one or more of crop quality improvement and / or yield increase.