CS258496B2 - Agent for plants' growth regulation - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention

(I) where

R ¹ is C _x _ ₄ alkyl,

R is (C _x _ ₄ alkoxy) - (C _x _ ₄ alkyl), or C _6-20 alkyl,

R is hydrogen or _ϋ χ _ _χ5 alkyl group, and a solid or liquid carrier or filler and optionally further additives, preferably surfactants and / or adhesion enhancing agent in an amount up to 100% by weight.

The preparation of the active compounds of the formula I as well as their use in fungicidal compositions is described in Machač Patent Specification No. 184,319, but the influence of these active compounds on plant growth regulation is not described.

It has been found that, when a suitable dose is applied, the above active ingredient of formula (I) may be used to control the development of roots, growth, foliage as well as 1 to control the seed, flowering and crop ripening of plants such as wheat, corn, diabetes , sunflowers, horticultural plants such as peppers, tomatoes, radishes, potatoes, fruit machines such as apple trees and soft fruits such as currants and vines.

In order to control the growth of plants or to accelerate the ripening of the crop, the composition according to the invention can be used in a concentration of 1 to 2000 ppm of active ingredient. The dose depends on the plant to be treated, the purpose of the treatment, the phenological phase of the plant and the form of the composition.

Accordingly, a further feature of the invention is also a method for controlling plant growth, flower deployment, fruit planting and accelerating crop ripening, characterized by treating seeds, plants in the initial growth stage and flowers with an amount of from 1 to 2,000 ppm of active ingredient; 0.001 to 5.0 gm of the active ingredient before sowing, or an amount of from 1 to 2000 ppm of the active ingredient by spraying after planting or cross-breeding using a composition comprising as active ingredient a compound of formula I wherein R, R and R are as defined above, in an amount of 0.2 to 99.5% by weight, together with a solid or liquid filler or carrier, and optionally other additives, preferably surfactants and / or adhesion promoters in an amount of up to 100% by weight.

Prior to practical use, the active ingredient of the invention is formulated into compositions using solid or liquid carriers and optionally other ingredients, preferably surfactants and adhesion promoters.

Suitable carriers include organic or mineral, natural or synthetic substances that enhance the adsorption or absorption of the active ingredient (e.g., water, methanol, glycerol, waxes, resins, talc, etc.). ,

Suitable surfactants include ionic and / or nonionic emulsifying and dispersing or wetting agents, preferably alkylaryl polyglycol ethers and polyglycol fatty acid esters; preferred adhesion enhancers are, for example, polyvinylpyrrolidone, polyethylene glycol and carboxymethylcellulose.

The compositions of the invention may be formulated as water-soluble concentrates (WSC), wettable powders (WP), powders, emulsifiable concentrates (ЕС) or granules <(G).

The invention is illustrated by the following non-limiting examples. Active substances are labeled as follows:

3-butyloxypropylammonium methylphosphonate 2-methoxyethylammoniummethylphosphonate tetradecylammonium ethylphosphonate hexadecylammonium methylphosphonate decylammonium methylphosphonate bis (2-ethylhexyl) ammoniumethylphosphonate · dodecylammoniumethylphosphonate 2-methoxyethyl ammonium phosphonate 2-methoxyethyl ammonium phosphonate

BF-53

BF-76; BF-96;

BF-100

BF-105

BF-120

BF-195

BF-196

BF-197

The water-soluble composition is prepared from the following ingredients:

Decylammonium ethylphosphonate nonylphenol polyglycol ether (eg · Arkopal N080)% by weight

The liquid emulsion forming the spray formulation is prepared from the following components:

dodecylammonium ethylphosphonate

Atlox 4857B (anionic and nonionic surfactant mixture) chlorobenzene

Liquid emulsion spraying agent with tetradecylammonium ethylphosphonate Arkopal N 130 (nonylphenol polyglycol ether) chlorobenzene

% By weight of the liquid emulsion of the spray composition;

prepared from the following ingredients:

% wt.

prepared from the following ingredients:

bis (2-ethylhexyl) ammonium ethyl phosphonate

Genapol PF 10 (polymerization product of propylene oxide and ethylene oxide)

% Genapol PF 40 (polymerization product of propylene oxide and ethylene oxide) ethylene glycol cyclohexanone

Example 5

The solution in the form of solution ee is prepared from the following components:

3-Butoxypropylammonium methyl phosphonate glycerol wt.

Example 6

A dusting composition is prepared from the following components:

% 2-Methoxyethylaninonium ethyl phosphonate talc.

0.55

99.5

Example 7

Wheat grains (MV-4) are soaked in solutions containing various concentrations of test compounds. After the surface has dried, the grains are sown in the cultivation vessels.

The germination percentage, plant length, cabbage matter and root mass were evaluated at the 4 leaf stage of the control plants. Gibberellic acid (GA) and 3-indole acetic acid (IA) are used as reference substances. The results are summarized in Table I.

Germination% * · Plant length · Green'meat Root mass diameter% control cm g / piece g / piece average% control average% control average% control ооссог-гчсо4осослсо> -4г-1г.оосл »-чсп40сл <мчусп.- | счгп1лос '<ус34ас ОСОСЛОПСЧСЧ »-ЧСЧОСЧСЧСЧчУСЛО <ПСОгЧОчГСОГ" СОчусоОООС »ООГ' гЧ СЧСЧСЧСЧСЧСЧСЧСЧ (ЧСЧСЧСЧСЧСЧСЧг-ЧСЧСЧгЧгЧ. ЧгЧгЧгЧСЧгЧгЧгЧгЧ ос m-oc in сч tn гЧ СЛ чу dT чу чУ гЧСПОСГПСЧСЧГчф чУ СП чГ чу чу σισ> ΗΗσ ^> ^ ΐΛ чутчгспяусосчсп оооооооо (η ιη> н σι (λ

СП СЧ СМ СП СП СП сл со чу СП СП СП

ООО

OH >> ^ l £ linu1f *) 4 '' | '' гЧ гЧ гЧ гЧ гЧ гЧ г-1-ооосг чгЧОсссг-'Г'чусзсососчосГ'-сл.-чосспспчучуососчооспспочг гЧСПСПСП <ЧСЧ <Ч <ЧСЧ <ЧСЧ <ЧСПСЧСЧСП <ЧСЧСЧ <ЧСЧ (Ч «-Ч (ЧСЧ <ЧСЧСЧСП <Ч оооооооооооооооооооооооооооооо сч сч

СП

СЛ со о о

СР о

ОС сч сч 05 О О

СО (Н о

О rd гЧ

04 /

О гЧ со сч со о гЧ 04 СО Ш

О О 04 04 to 04 ОС 04

ОС 04 04 04 сч сч о о сч о шсосче ^ осслосчрос'то сччусоососпспспсосо σ сч со н н

СОчУСПОО »-ЧГ'-чУ1ПСОООГ '-« - Ч СЛОСПСЧ'ТОССОСОгЧ ЧГ'СОГ ^ ^ ОгЧО • ЧМ'СПгЧСПСЧСМСЧгЧСЧСЧСЧГПСПСЧчТ'г-ССПСЧгЧСЧгЧ.-ЧгЧгЧСЧгЧСЧСЧСЧ »НгЧгЧ» - <гЧгЧ »НгЧгЧгЧгЧгЧ" -4 "-4гЧгЧ« -ЧгЧ «-ЧгЧгЧгЧгЧгЧгЧг-СгЧгЧгЧгЧ

СП о

О 40 о О гЧ о гл о

СП ос

СП со о со о

ЧТ о

Гсо о

Г04 сп

СП сч сч со о ос ιη ιη сл ιη сл г * г * о г> г о ^г о г * * * г о г »оог г ^» * осс -оооооосо ш слm

СЧ Г СЧ сч г-о

ОС СО 00 СО Г * 00 о сч ОС СО сл со

ОСЧСЧГ * СЛОсЛСЛ ососг'сооосоооос

СЛ

О> 1Г) ОС Г * СО

О ' О ' О ' СП '' ч О ' * & с * «Ч О ' 'Ч. О ' > 4 О ' • ч ОС '' ч О ' О ' о о о о О гЧ о о о о о гЧ о о о сл о гЧ о о СЛ о гЧ о о ιη сч гЧ о СЛ сч гЧ о гЧ гЧ «-Ч (ΰ f-Ч сп СП СП СП сп сп со со 40 АО со со с * 0 сл сл ш ю СЛ сл г- Г · с * řr | г » г- Ос Р and Рч Рч № Рч Рч Рч Рч Рч & № ь Рч § О Λ Λ η m 0) 0) 0) 0) 0) 03 / 0) CQ £ гЧ сч СП чГ СЛ СО г * 00 ос о гЧ сч сп • -Ч гЧ гЧ гЧ

Р • Р 4J -Р -μ -č 4J 4J • Р • Р • Р Р + J 4) Р • Р 4 • ч ч '' ч “Ч. • »4 'ч. '' Ч О ' ОС 04 / О ' О ' О ' О ' О ' ОС О ' О ' О ' О ' О ' О ' О ' о о о о > -ч о о о о о г-4 о о о о о о сл о «-Ч о о СЛ о г-4 о о СЛ о г-4 сл сч «-Ч о СЛ сч гЧ о сл сч «-Ч г-Ч гЧ о о о о о г » г * г » Г ' Г ' со со со со со со о о о о Ос Ос ОС ОС ОС ОС ОС ОС ОС Ос ОС WITH «—4 г — 4 «—4 г — 4 Рч Рч i Рч 1 Рч Рч Рч Ьч Рч Рч 1 Рч and and Рч Рч Рч Рч 03 / η 0) 0) 03 / 03 / 0) 03 / 03 / 03 / 03 / no 03 / 03 / 03 / 03 / чу сЛ со Г со ОС о гЧ сч СП чу сл со г * 00 ОС гЧ «-Ч гЧ гЧ гЧ гЧ сч сч сч сч сч сч сч сч сч сч

4ооо4осоог-см i-J -Ji-4r4VO © CO · * СМСМСЧСМгЧСМгЧгЦ

гЧООгЧ »-Ч0040G ~ чГ ^ чфЧРСОСОСМСМ oooooooo

Г * 40 (N OJ о о со гСМ 0J о о со гм СМ СО о о

CNТ ш CN СМ ч о о со о со о о

СП

СО со см о

со см о

г>

со

со см о

г * continuation of Table I

Л 1Л

Ч ч

Ю О 'г * 1Л ш г *, г »ю оооовооосооо

<Ρ Р 4J 4> 4) 4> Р > ч * 4 --Ч * 4. Сл 0 » СР СР СР СР СР СР гЧ о О О о о гЧ о о О ю о т-Ч о о 1Л см · —1 гЧ гЧ О о о о о о о <м * т < см см см СМ см · - < гЧ «-Ч гЧ гЧ гЧ and Σ and and А 1 А i А η й А А А А А 3 о гЧ ГЧ со ио 40 г * со со СО со СП со со со

GA 10 g / t 80 104 14.4 122 0.27 150 0.24 126

GA 1 g / t 77 100 14.55 123 0.29 161 0.35 184

100Α 100 g / t 70 91 14.11 119 0.27 150 0.29 152

10Α 10 g / t 90 116 14.50 123 0.27 150 0.30 158

1Α 1 g / t 85 110 14.10 119 0.31 172 0.37 195

Example 8

Corn seeds in pots (5 plants / pot) were sprayed post-emergence with solutions containing test compounds or gibberellic acid or 3-indole acetic acid at concentrations of 250 and 500 ppm. Table II). The chlorophyll content was determined at the top of the second leaf of each plant (Table III).

Table II

Treatment Dose Length of the plant green matter Root mass Length ratio ppm (one) plants one plant % to green matter (one) % of one plant mm% control g % control g% of control

untreated

control - 152.83 100 ALIGN! 0.94 100 ALIGN! 1.58 100 ALIGN! 1 BF-96 500 172.69 116.92 1.19 126.60 2.20 139.24 0.92 250 164.75 107.80 1.20 127.66 2.27 143.67 0.84 BF-120 500 161.47 105.65 1.15 122.34 2.16 136.71 0.86 250 174.18 113.97 1.67 177.66 2.33 147.47 0.64 IA 500, 159.80 104.56 1.37 145.74 2.13 134.81 0.71 250 152.14 99.55 1.0 106.38 1.86 117.72 0.93 GA ^X 500 254.08 172.79 1.44 153.19 1.68 106.33 1.12 250 238.23 155.88 1.16 123.40 1.38 87.34 1.26

^X by the treatment with gibberellic acid, elongated plants were obtained

Table III

Treatment dose PPm Ch and mg / g Chb mg / g Ch a + + Ch b mg / g Ch a % Ch b % Cha ++ Ch b % total chlorophyll content of the whole green matter Ch and + + Ch b as% in all green matter héOšětřená control - 0.55 0.12 0.67 100 ALIGN! 100 ALIGN! 100 ALIGN! 0.63 100 ALIGN! BF-96 500 0.57 0.16 0.73 103.6 133.3 108.9 0.87 138.1 250 0.48 0.12 0.60 87.3 100 ALIGN! 89.6 0.72 114.3 BF-120 500 0.54 0.14 0.68 98.2 116.7 101.5 0.78 123.8 250 0.59 0.13 0.72 107.3 108.3 107.5 1,2 190.5 IAA 500 0.57 0.12 0.70 103.6 100 ALIGN! 104.5 0.96 152.4 250 0.51 0.12 0.62 92.7 100 ALIGN! 92.5 0.62 98.4 CA 500 0.45 0.11 0.56 81.8 91.7 83.6 0.81 128.6 250 0.38 0.10 0.47 69.1 83.3 70.2 0.55 87.3

Total chlorophyll content in the whole green matter = (Ch a + Ch b) x diameter of the green matter of the plant.

The results show that the development of plants was significantly supported by each of the active ingredients tested compared to the untreated control.

However, the ratio of plant height to green matter suggests a more beneficial effect of BF substances compared to the reference substance. This is evidenced by the fact that the appearance of maize has not been adversely affected by, for example, BF 120 or FR 196, whereas by the action of gibberellic acid, large plants of unsuitable appearance have been obtained.

Also, from the results of the chlorophyll determination, it is also apparent that, due to the amount of chlorophyll formed in 1 g of green, the effect of BF 120 was the most beneficial plant as well as in the whole green plant.

Example 9

Tomato plants planted on small patches were sprayed once until dripping with solutions containing 250 or 500 ppm BF 120 at the beginning of the flowers.

Samples were taken from identical leaf lobes of the same leaf height of plants 1, 4 and 13 days after treatment and the chlorophyll content was determined (Table IV).

Table IV

Day Dose Ch and mg / g Chb mg / g Ch a + + Ch b mg / g Ch and as% control Ch b as% of control Ch a + Ch b as% of control control 0.453 0.125 0.578 100 ALIGN! 100 ALIGN! 100 ALIGN! 1 250 0.479 0.136 0,615 105.74 108.8 106.40 500 0.564 0.149 0,713 124.50 119.20 123.36 control 0.582 0.176 0.749 100 ALIGN! 100 ALIGN! 100 ALIGN! 4 250 0.538 0.176 0,714 92.44 104.76 95.33 500 0.72 0.189 0.909 123.71 112.5 121.36 control 0,716 0.212 0,928 100 ALIGN! 100 ALIGN! 100 ALIGN! 13 250 0.810 0.199 1,009 113.13 93.87 108.73 500 0.732 0.195 0,927 102.23 91.98 99.89

Example 10

Height and weight of maize plants treated with BF 120 ROEngland: maize

Sowing: 25.04.1985

Treatment date: 17.05.1985

Dose: 2 liters / hectare of the formulation containing BF 120 as active ingredient

Phenological stage: phase 4 leaves

Measurement: 04.07.1985

Data are shown in Table V.

Table V

Check Treatment

Height Weight Height Weight

^ ^x 25 ³ 844 cm 25χ ₂₅ -8 888 g ^ - ^x 25 ~ 4 212 cm. 25 ^χ 25 »10 646 g ^X 25 ~ 153.76 cm ^X 2S " 355.52 g ^x 25 ⁼ 168.48 cm ^X 25 " 425.84 g 8 « 9.64 8 = 98.13 X " 10.24 8 « 119.0. ^ ^x 21 ' ³ 237 cm ^ ^x 21 ⁷ 373 g 540 cm Χ ^χ ₂₁ -8 093 g ^X 21 " 154.1 cm ^X 21 351.1 g * 21 " 168.6 cm ^x 21 " 433.0 g with 7.52 with 66.7 S " 8 « 92.7

s - standard deviation

Example 11

Tomato seedlings (20 stems) were sprayed with different concentrations of BF. of active substances after planting but before the beginning of flowering (4 times repeated). The first harvest was evaluated. The results are shown in Table VI. ‘

Table VI

Treatment Dose* ppm Harvest in% control untreated 100.00 BF-100 250 129.24 500 189.77 BF-105 250 143.96 500 122.70 BF-120 250 139.26 500 96.52 ETHREL 1 l.ha ^{-1 xx} 118.75

^x In the case of an active substance BF is meant a dose of active substance.

** Practically used dose corresponds to a formulation containing the active ingredient (2-chloroethylphosphonic acid) at a concentration of 40%.

the effect of accelerating the maturation of the test substances was clear according to the results obtained.

Claims (1)

OBJECT OF THE INVENTION A composition for controlling plant growth comprising, as an active ingredient, one or more ammonium phosphonates of the general formula (I): (I) wherein: R ¹ represents a C 1-6 alkyl group, R ² represents a (C 1-6 alkoxy) - (C 1-6 alkyl) or C _6-2 alkyl group and a R ³ represents a hydrogen or C _1-15 alkyl group, in an amount of 0.2 to 99.5% by weight, together with a solid or liquid filler or carrier and optionally other additives, preferably a surface-active and / or adhesion-increasing agent in an amount % to 100% by weight.