JPH0969A - How to increase the yield of green beans - Google Patents

Abstract

(57) [Summary] [Structure] Stem and leaf application of a plant growth regulator of gibberellin biosynthesis inhibition to kidney bean plants in the period from pollen mother cell formation to keel valve bending or flowering. How to increase the yield of green beans. [Effect] According to the present invention, it becomes possible to easily and significantly improve the yield of kidney beans.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a method for increasing the yield of green beans.

[0002]

2. Description of the Related Art Generally, when increasing the yield of green beans,
It is known to apply fertilizers such as nitrogen, phosphoric acid and potassium and select high-yielding excellent varieties by breeding methods.

[0003]

However, in the case of fertilizer application, excessive application causes lodging.
Yield may be reduced, and proper management that is compatible with cultivated soil is essential to maximize the effect of fertilizer. In addition, selection of high-yielding excellent varieties by the breeding method requires a lot of time and time per year, but it is not always expected to achieve a dramatic increase in sales. Even if an excellent variety appears, it is not easy to use the variety in a wide area because the adaptability varies depending on the cultivation area.

[0004]

Under these circumstances, the inventors of the present invention have conducted diligent studies, and as a result, as a result of applying a plant growth regulator having a certain physiological action to kidney bean plants at a specific time. It was found that the yield of green beans can be remarkably improved by spraying, and the present invention was completed. That is, the present invention, a gibberellin biosynthesis-inhibiting plant growth regulator, bean plants characterized by spraying foliage on kidney bean plants in the period from the pollen mother cell formation period to the keel valve bending period or in the flowering period. The present invention provides a method for increasing the yield (hereinafter referred to as the method of the present invention).

Hereinafter, the present invention will be described in more detail. The target plants of the present invention are kidney bean plants. The "green beans plant" as used herein means a plant belonging to the genus Phaseolus, for example, kidney beans (Phaseolus vulgaris).
L.), lima beans (Phaseolus lunatus L.), lima beans (Phaseolus limensis MACF.), Safflower (Phaseolus coccineus L.), moss bean (Phaseolus)
aconitifolius JACQ.), Tepally Bean (Phaseolus)
acutifolius GRAY var. latifolius FREEM.) etc. can be mentioned.

The drug used in the present invention is "gibberellin".
"Biosynthesis-inhibiting plant growth regulator". Gibberellin Osamu
Growth-inhibiting plant growth regulators include, for example, plant height extension.
It shows typical actions such as suppressing
Examples of such compounds include (E) -1- (4-chloro)
Phenyl) -4,4-dimethyl-2- (1,2,4-to)
Reazol-1-yl) -1-penten-3-ol
(Compounds described in JP-A-56-25105)
Or its salt, (2RS, 3RS) -1- (4-chloro)
Rophenyl) -4,4-dimethyl-2- (1H-1,
2,4-triazol-1-yl) pentan-3-o
(Compound described in JP-A-53-28170)
Or a salt thereof, (E) -1-cyclohexyl-
4,4-dimethyl-2- (1H-1,2,4-triazo
1-yl) -1-penten-3-ol
No. 55-111477)
Is its salt, rel- (1R, 2R, 6S, 7R, 8R,
11S) -5- (4-chlorophenyl) -3,4,5,
9,10-Pentaazatetracyclo [5.4.1. O
^2,6 . O ^8,11] Dodeca-3,9-diene (Short
Review of Herbicides & PG
Rs, 1990, Hodogaya Chemical Co., Ltd., page 316
Compound or its salt, etc.
Compound and 4'-chloro-2 '-(α-hydroxybenzyl
Le) Isonicotine anilide (Short Review)
 of Herbicides & PGRs, 199
0, Compounds described on page 306, Hodogaya Chemical Co., Ltd.
Products) and the like, and isonicotine anilide compounds and (RS) -2
-Methyl-1-pyrimidin-5-yl-1- (4-tri
Fluoromethoxyphenyl) propan-1-ol (rice
Japanese Patent No. 4002628 and Short Review
w of Herbicides & PGRs, 19
90, published in Hodogaya Chemical Co., Ltd., page 318.
Or a salt thereof, α-cyclopropyl-4-
Methoxy-α- (pyrimidin-5-yl) -benzyla
Rucor (UK Patent 1218623 and Short
 Review of Herbicides & P
GRs, 1990, Hodogaya Chemical Co., Ltd., 318
Compounds described on page) or salts thereof, such as pyrimidines
Examples include system compounds. These drugs may be used alone or in combination.
It may be a mixture of two or more species. Of course, optically active
In compounds having isomers, the plant growth regulating activity
It is also possible to use the optically active isomer having.

The gibberellin biosynthesis-inhibiting plant growth regulator as described above is usually an emulsion, solution, wettable powder or suspension prepared by using a liquid carrier, a solid carrier, a surfactant or other auxiliary agents for formulation. It is used as a formulation. These formulations usually contain the active ingredient in a weight ratio of about 0.00001 to about 99.9%.

Examples of the liquid carrier used include aromatic hydrocarbons such as xylene and methylnaphthalene, alcohols such as isopropanol, ethylene glycol and cellosolve, ketones such as acetone, cyclohexanone and isophorone, soybean oil and cottonseed oil. Examples thereof include vegetable oil, dimethylsulfoxide, acetonitrile, water and the like. Examples of the solid carrier include kaolin clay, attapulgite clay, bentonite, acid clay, pyrophyllite, talc, diatomaceous earth, calcite, walnut shell powder, urea, ammonium sulfate, fine powder or particles of synthetic hydrous silicon oxide, and the like. .

Surfactants used for the purposes of emulsification, dispersion, wetting, spreading, binding, disintegration control, active ingredient stabilization, fluidity improvement, rust prevention and the like are nonionic, anionic and cationic. Both ionic and zwitterionic can be used, but usually nonionic and / or anionic ones are used. Representative nonionic surfactants include, for example, polyoxyethylene alkyl ether, polyoxyethylene alkyl aryl ether, polyoxyethylene polyoxypropylene block copolymer,
Sorbitan fatty acid esters, polyoxyethylene sorbitan fatty acid esters and the like can be mentioned. Representative anionic surfactants include, for example, alkyl sulfates, alkyl (aryl) sulfonates,
Examples thereof include dialkyl sulfosuccinates and polyoxyethylene alkyl aryl ether phosphate salts.

Other auxiliary agents for the preparation include lignin sulfonate, alginate, polyvinyl alcohol, gum arabic, CMC (carboxymethyl cellulose), PAP (isopropyl acid phosphate) and the like.

The treatment concentration and treatment amount of the gibberellin biosynthesis-inhibiting plant growth regulator thus prepared vary depending on the kind of the plant growth regulator and the like. A solution of about 1000 ppm is used as an active ingredient amount of about 0.1 to about 50,000 g / ha, preferably about 0.1 to about 5000 in the case of a triazole compound.
g / ha, in the case of isonicotiline anilide compounds,
It is applied at a rate of about 1 to about 50,000 g / ha. Of course, when treating a gibberellin biosynthesis-inhibiting plant growth regulator, it is possible to mix with a fertilizer, an insecticide, a fungicide, a herbicide, or another plant growth regulator as long as the effect of the present invention is not impaired. Is.

Next, the time of drug application in the present invention, that is, "the period from the pollen mother cell formation period to the keel valve bending period or the flowering period" will be explained. In the present invention, it is essential that the plant growth regulator as described above is foliage-dispersed on the kidney bean plant in the period from the pollen mother cell formation period to the keel valve bending period or in the flowering period. Preferably, it is a period of about 4 weeks from the first day of flowering. By the way, the flower of the kidney bean plant has a flower inflorescence differentiation period, a flower bud differentiation period, a sepal formation period,
Petal early stage, stamen early stage, stigma early stage, stigma completion period,
It is created through the pollen mother cell formation period, the tetrad formation period, and the keel valve bending period. During this period, for example, in the case of early-type kidney beans (dwarf variety), it generally takes about 40 days after germination (equivalent to 28 days after flower bud differentiation), although it depends on the weather, variety, cultivation conditions, and the like. Of these, the flower bud differentiation stage usually corresponds to the 4 to 5 leaf stage, and the sepal formation stage is about 2 days after flower bud differentiation, the petal initiation stage is about 3 days after flower bud differentiation, and the stamen initiation stage is after flower bud differentiation. Approximately 5 days, about 6 after flower bud differentiation in the stigma stage
Day, about 13 days after flower bud differentiation during stigma completion, about 16 days after flower bud differentiation during pollen mother cell formation, about 18 days after flower bud differentiation during tetrad formation, 21 days after flower bud differentiation during keel valve bending Is equivalent to. Therefore, the period from the pollen mother cell forming period to the keel bone valve bending period in the present invention corresponds to the final stage of the flower forming process in the kidney bean plant, for example,
In the case of green beans, it takes about 1 to 13 days before flowering. However, such days before flowering may change depending on the weather, variety, cultivation conditions, and the like. On the other hand, the flowering period may be 6 weeks depending on the weather, varieties, cultivation conditions, etc. For example, in the case of green beans, it is usually about 2 to 4 weeks for early type kidney beans (dwarf varieties). In the case of late type kidney beans (vine varieties), it takes about 3 to 6 weeks.

The chemical treatment method of the present invention is foliar application by spraying, dusting or the like.

[0014]

EXAMPLES The present invention will be described in more detail with reference to formulation examples and test examples, but the present invention is not limited to these examples. First, formulation examples are shown. In these preparation examples, parts represent parts by weight.

Formulation Example 1 (Emulsion) (E) -1- (4-chlorophenyl) -4,4-dimethyl-2- (1,2,4-triazol-1-yl) -1
-Penten-3-ol (hereinafter referred to as compound A) 5
Parts, polyoxyethylene styryl phenyl ether 10
Xylene to 50 parts of cyclohexanone and 50 parts of cyclohexanone to make 100 parts as a whole, and mixed by stirring to obtain an emulsion.

Formulation Example 2 (Wettable powder) (2RS, 3RS) -1- (4-chlorophenyl)-
4,4-Dimethyl-2- (1H-1,2,4-triazol-1-yl) pentan-3-ol (hereinafter referred to as compound B) 10 parts, sodium lauryl sulfate 5 parts and aromatic sulfonic acid Kaolin clay is added to 2 parts of the formalin condensate of the salt to make 100 parts in total, and well mixed with a juice mixer and then finely pulverized with a jet mill to obtain a wettable powder.

Formulation Example 3 (Emulsion) 5 parts of 3,5-dioxo-4-propionylcyclohexanecarboxylic acid (hereinafter referred to as compound C), 10 parts of polyoxyethylene styryl phenyl ether and 50 parts of cyclohexanone were added with xylene. An emulsion is obtained by mixing the whole with 100 parts by stirring (the compound C is described in JP-A-59-196840). Next, a test example is shown.

Test Example 1 Green beans (variety, Himenote) were cultivated, and the flowering stage (5 after sowing)
2 days), Compound A prepared as a wettable powder according to Formulation Example 2
4 ppm solution was sprayed on the foliage at a drug treatment amount of 500 L / ha. After cultivating for 108 days from sowing, the yield was investigated. The yield was expressed as the grain yield, which is the product of the total number of grains per strain and the average grain weight. Here, the total grain number is the number of fertilized ovules, and is the total number of ovules minus the number of ovules with stunted grains that did not develop as seeds during the embryo development process. Specifically, a 3 mm mesh sieve was used to select fertilized ovules and stunted grains that did not develop as grain, and the yield was determined. The results of the yield survey are shown in Table 1. In addition, this test was performed in 1 section and 3 repetitions. The yield was shown as a relative value with the control group (untreated group) set to 100% by averaging three replicates. Table 1
As is clear from the above, the present invention group showed an extremely high yield-increasing effect as compared with the control group (untreated group).

[0019]

[Table 1]

Test Example 2 A test was conducted in the same manner as in Test Example 1 except that 50 ppm and 200 L / ha were used instead of the drug treatment concentration of 4 ppm and the drug treatment amount of 500 L / ha. The results are shown in Table 2. As is apparent from Table 2, in the plot of the present invention, as compared with the control plot (untreated plot), an extremely high yield-increasing effect was exhibited as in Test Example 1 above.

[0021]

[Table 2]

Test Example 3 A test was conducted in the same manner as in Test Example 1 except that compound B [drug treatment concentration (ppm): 200] was used instead of compound A [drug treatment concentration (ppm): 4]. As a result, a similar increase in sales was confirmed.

[0023]

Industrial Applicability According to the present invention, it has become possible to easily and significantly improve the yield of kidney beans.

Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI technical display location // C07D 213/81 C07D 213/81 249/08 523 249/08 523

Claims (4)

[Claims] 1. A gibberellin biosynthesis-inhibiting plant growth regulator is applied to stalks and leaves of a kidney bean plant in the period from the pollen mother cell formation stage to the keel valve bending period or in the flowering period. Revenue increase method. 2. The method for increasing the yield of green beans according to claim 1, wherein the gibberellin biosynthesis-inhibiting plant growth regulator is a triazole compound or an isonicotianilide compound. 3. The triazole compound is (E) -1- (4
-Chlorophenyl) -4,4-dimethyl-2- (1,
2,4-triazol-1-yl) -1-pentene-3
-All or a salt thereof, or (2RS, 3RS)-
1- (4-chlorophenyl) -4,4-dimethyl-2-
(1H-1,2,4-triazol-1-yl) pentan-3-ol or a salt thereof, or an isonicotine anilide compound is 4′-chloro-2 ′-(α-hydroxybenzyl) isonicotine anilide or a salt thereof. The method for increasing the yield of green beans according to claim 2, wherein the method is salt. 4. (E) -1- (4-chlorophenyl)-
4,4-dimethyl-2- (1,2,4-triazole-
1-yl) -1-penten-3-ol or a salt thereof is applied to foliage of kidney bean plants in the period from pollen mother cell formation stage to keel valve bending period or in flowering period. To increase sales.