SU736854A3 - Plant growth controlling agent - Google Patents

Description

I

The invention relates to the field of agriculture, in particular to a chemical agent where plants are exposed.

Known plant growth regulator - (2-chloroethyl) - three meth l ammonium chloride 1,

However, it is not effective enough.

It is known that pro-imidazole of the general formula

N

./-but,

U)

.1 .- where RI is hydrogen or alkyl

R2 - Alkyl Cg-Cib,

possess microbicidal activity 2.

The purpose of the invention is the waggle. regulatory activity of plant growth stimulants.

UeJib is achieved by using imidazole derivatives of formula (I) as plant growth regulators.

The compound of formula (I) can be used to delay the growth of herbs.

2

and woody plants, to eliminate lodges of grain crops, to increase yields, to delay side shoots, for example, in defoliation tobacco, for example cotton and the like.

Aromatic hydrocarbons, such as xylene, then 10 luol, benzene or alkylnaphthalenes are generally suitable as liquid solubilizers; aromatic hydrocarbons or chlorinated aliphatic hydrocarbons, such as chlorobenzene, chloroethylenes or methylene chloride; aliphatic hydrocarbons, such as cyclohexane or paraffins, such as petroleum fractions; alcohols, such as butanol or glycol, as well as their ethers and esters;

Ae ketones such as acetone, methyl ethyl ketone, methyl ethyl isobutyl ketone or cyclohexanone; highly polar solvents, such as dimethylformamide and dimethyl sulfoxide, as well as water.

25 Liquefied gaseous disintegrations or carriers should be understood as such liquids that, at normal temperature and at normal pressure, are gaseous, for example, aerosol-working gas. Threat, takis as dichlorodifluoromethane or trichlorofluoromethane. Solid carriers can be natural native flours, such as kaolin, clay ef gj talc, chalk; quartz, attapulite, montmorillonite or diatomaceous earth, and synthetic stone flours, such as highly dispersed silicic acid, alumina and silicates. Emulsifiers can be neonogenic and anionic emulsifiers, t; which are polyoxyethylene fatty acid esters, polyoxyethylene fatty alcohol ethers, for example alkylaryl polyglycol ether, alkylsulfonates, eshkylsulfates, arylsulfonates, as well as protein hydrates, alkyl esters, esters of alkylsulfates, arylsulfonates, as well as protein hydrates, alkyl esters, esters of alkylsulfates, arylsulfonates, esters of polyoxyethylene fatty acids, esters of polyoxyethylene fatty acids. V. quality dispersant used, for example, spent sulfite liquors and methylcellulose ..,

Compounds of formula. (I) may in

preparations to be blended with other1 "yes

known active principles such as fungicides, insecticides, acaridis and herbicides, as well as with fertilizers; Preparations generally contain between

Oh, G and. 95 weight. % active, start,

Compounds of formula (I) are preferably between 0.5 and 90% by weight., AJ Dust preparation. 0.1 weight.h. the current beginning is mixed with 99.9 weight.h. natural stone flour and ground to fine dust, the resulting agent is pollinating the plants or their biotope in the right amount, B. Wettable powder (dispersible powder. /

.one. -25 weight.h. active start Mixed with 1 weight.h, dibutylnaphthalisulfonate, 4 weight.h, ligninsulfonate, 8es.ch.h. you are co dispersed. silicic acid and 62 wt.h, natural stone flour. Before use, the wettable powder is mixed with water to the desired concentration.

2. 50 weight.h. the current beginning of the mix with 2.weight, h. dibutylnaph linsulfonate, 4 weight.h. ligninsulfonate, 8 wt. highly dispersed silicic acid and 37 wt.h, of natural stone flour, and ground in, porsok. Before use, wet the antsic powder by discharging the act with water to the desired concentration. In,. Emulsifiable concentrate. 25 ye.ch. the active agent is dissolved in a mixture of .55 parts by weight. xylene and 10 wt. cyclotexan. 10 weight parts are then added as an emulsifier. a mixture consisting of up to deCyl benzene sulphate calcium and nonylphenol polyglycol ether. Before use, the emution concentrate is diluted with a quantity of water, respectively, providing the desired concentration of the active principle in the resulting mixture. -

G. Pellet t.

K 91 weight.h. sand with a grain size of 0.5 to 1.0 mm is added. 2 weight parts spun oil and then 7 wt. including a pre-micronized mixture of the active principle containing 75 parts by weight active, start and 25 weight.h. Natural stone flour. The mixture is processed in a suitable mixer until a free flowing and non-burning granulate is obtained uniformly. The granulate is poured in the desired amount on the plant or their biotope.

D, A preparation for dispensing a substance into an extremely low volume (VLN /).

1.5 part by weight of polyethylene oxide as an emulsifier is added to 95 BeCj4..Act of the beginning and the mixture is dissolved in Zu5 by weight aromatic mineral fraction. The emu mixture is applied using the VbV method.

The active principles can be used in pure form or in the form of such forms of application made from them as ready-to-use solutions of emulsifiable concentrates, emulsions of foam, suspensions, wetted by: powder,. pastes, soluble powders, powdered preparations and granules (PPA, B, C, D, D). They are used in the usual way, for example by watering, spraying, spraying, dispersing, blowing, baking, fumigating, etc. In addition, it is possible to apply the active principles in a way of distributing the substance in an extremely low volume with a plaster to apply the active agent or one agent to the plants or part of them or inject the active agent or only the active principle into the soil. It is also possible to cultivate planting material.

The amount of active ingredient used can be varied over a wider area. In general, an area hectare between 0.01 and 50 kg, preferably between 0.05 and 10 kg is used. The growth regulators are processed in the preferred time period, the exact limits of which depend on the climatic and vegetative conditions.

Example 1: Effect of Compound () on Leaf Growth Axis.

The preparation of the active principle is prepared as follows. 1. weight.h. the current beginning is mixed with 10 weight.h. methanol, 2 weight, h. polyoxyethylene sorbitan monolaurate (emulsifier) and diluted with water to the desired concentration.

Young soybean plants, which are in the stage of development of the first pioneer leaves, are sprayed with this preparation before the drops are formed. After two weeks, the growth is measured and the growth retardation is determined as a percentage of the growth of contact plants. In this case, 100% means that the growth is stopped, and 0% - the growth of control plants.

The results of studies privada-. us in the table. one.,

EXAMPLE 2. Growth of lateral shoots in tobacco.

The preparation of the active principle is prepared as follows. 1 weight.h. the current beginning is mixed with 10 weight.h. methanol (solvent) and 2 parts by weight of polyoxyethylene sorbitan monolaurate (emulsifier), then. diluted with water to the desired concentration.

The tops of the shoots of tobacco plants with a height of approximately 50 cm break off. The next day, the plants are sprayed with a preparation of the active principle before dropping. After three weeks, the lateral sideways formed during this time are broken, and the crosses are measured. The weight of the side shoots of the treated plants is compared with the weight of the side shoots of the untreated control plants in

Active principle

(Control)

®

Ce-CH, (CH) j

-N

Si l

CrH5

C, 2H25

, 118-122c / 0.5 -N

R

CzHs

And 8Hi7

, 155-119 ° С / 0.5 Torr

percent. In this case, 100% means the absence of side shoots and 0% growth of side shoots of control plants.

The research results are shown in Table. 2

Example 3. The effect of compound (I) on cotton growth.

The preparation of the active principle is prepared in a good way. 1 weight.h.

0 active start mixed with. 10 parts by weight of methanol (solvent) and 2 parts by weight of oxyethylene sorbitan monolaurate (emulsifier), then diluted with WATER to the desired concentration.

five

Young cotton plants in developmental stage with four leaves are sprayed with this preparation of the active principle before dropping. After three weeks, the growth is measured and the effect of the drug on growth in percent is determined compared to the growth of contraceptive plants. At the same time, 0% means that the growth corresponds to the growth of the control plants. Positive data

5, growth promotion is compared to the growth of control plants, and growth retardation is determined by negative data.

The research results are given in Table. 3

T a

faces

Growth retardation

Oh oh

Oh 05

0.05

45

0.05

60

table 2

Control -N

Hln

N CifiHj3

 230s / 1.3 Torr Mr.N

OL ™, :.:

T п138-142С / 0,01 Torr

65

43

Table 3

Claims (1)

Claim The use of imidazole derivatives of the formula ' I 45 where HZ is hydrogen or alkyl with C.-C ₄ ; - alkyl with C ₈ -C _<6 ', ⁴ as a plant growth regulator.