DD147602A3 - MEANS FOR REGULATING PLANT GROWTH - Google Patents

Abstract

The invention relates to agents for regulating plant growth on the known basis of 2-Chloraethanphosphonsaeure or a mixture of 2-Chloraethanphosphonsaeure and Clorcholinchlorid.Als additional active ingredient they contain salicylic acid, their salts or simple derivatives, such as acetylsalicylic acid.

Description

VEB OHEMIEKOMBINAT. BITTERi ¹ BLD Bitterfeld, March 13, 1978

1918 WP A 01 N / 204 148

Means for Regulation of Plant Growth Field of Application of the Invention

The invention can be used in horticulture and agriculture to regulate vascular and metabolic processes in plants.

Characteristic of the known technical solutions

It is known that by application of synthetic regulators of plant growth and development processes such as chlorocholine chloride, 2-chloroethanephosphonic acid, succinic acid dimethylhydrazide, maleic hydrazide, diphenylurea, 2,4-dichlorobenzyl-tributyl-phosphonium chloride, decenylsuccinic acid and others have a specific influence on growth and metabolism of plant organisms.

As is known, artificial regulators can attack on a wide variety of receptors and induce the most diverse reactions by interactions with native phytohormones depending on the plant species and variety _{} at the time of} application with respect to the developmental stage of the plants, the concentration and the preparation form of the active compounds. This results in versatile applications. Thus, in addition to other morphological changes, one can control the length and thickness growth, the seed germination

~ 2 - O ti A 1 4ö 1918

Sprouting of vegetative storage organs that influence rooting of cuttings, bud formation, flowering process, sex determination, and fruiting. Growth regulators induce parthenocarpe effects as well as a targeted leaf and fruit fall.

Of great importance is the use of such regulators to control nutrient and water intake, traasport and transpiration, drug production and resistance to biotic and abiotic noxious factors. ³ In addition to native, artificial regulators are increasingly being used to accelerate the growth and differentiation processes in tissue culture. "Noteworthy is the use of growth regulators to improve the storage and transport properties of vegetative organs and parts of plants.

Also known are combinations of 2-chloroethane phosphonic acid with other growth regulators, for example chlorocholine chloride. The disadvantage, however, is the fact that such mixtures induce only single effects and can not generally be applied to very different cultures.

Purpose of the invention

The aim of the invention is to develop new growth regulators on the active ingredient 2-Chloräthanphosphonsäure or the mixture of 2-Chloräthanphosphonsäure and chlorocholine chloride, the effect on the production of water-saving constitutional types maximum fabric production at minimum water · · · ·.

Presentation of the invention

This object is achieved according to the invention by the fact that the means for regulating the growth of plants on the basis of 2-chloroethanephosphonic acid or a mixture of 2-chlorophosphonic acid

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ethane phosphonic acid and chlorocholine chloride in addition to conventional excipients and carriers as an additional active ingredient salicylic acid, their salts or simple derivatives, such as .Acetylsalizylsäure included.

Depending on the mixing ratio of the combination partners, the dose and the time of application, the agents according to the invention are particularly effective for controlling germination, expulsion of vegetative organs, promotion of resin flow, flowering and maturation, sex determination, defoliation and defraction Ingredient formation, the nutrient uptake, the nutrient transport, the water balance, for the production of morphological changes, to increase the resistance to extreme temperatures, drought, salinization and biotic damaging factors and to increase the yield of crops suitable.

The use of the agents according to the invention in cereal farming offers particular advantages. With only one application several target functions can be fulfilled simultaneously. The retarding effect of the funds leads to stable stalks, thereby preventing storage losses and facilitates the use of modern harvesting technology. By inducing water-saving constitutional types, the formation of broth takes place with minimal water expenditure. Both with lack of water as well as with additional irrigation there is a significant increase in yield. The fact that the agents according to the invention reduce the water content in the crop is also extremely remarkable. This is for example for fodder plants, sugar beets and sugarcane of great importance, since the transport costs stark.reduziert and preservability is significantly increased.

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From management games

The following examples are intended to illustrate the means according to the invention in more detail.

Example 1:

In greenhouse experiments, summer barley of the Galina variety was treated with mixtures of active substances according to the invention from 2-chloroethanephosphonic acid, chlorocholine chloride and salicylic acid in different application rates via a dip application in the 2-leaf stage. Four weeks after germination, the length growth is rated by measuring the length of the stem section between the first and second leaves and comparing it to the untreated control. The results are shown in Table I. If one determines the effective doses which induce a 25% compression (ED21-) compared to the control and sets the effect of 2-chloroethanephosphonic acid equal to 100, then only 22 of the active substance mixture according to the invention in the mixing ratio 3: 1 J 1 according to Table II are needed % of the 2-chloroethane phosphonic acid dose.

If one examines, for example, the combination effect of this mixing ratio according to Colby, then, judging by the values of Table III, there is a clear synergism. In the same experiment, the influence on the green matter yield was also evaluated. According to the values of Table IV, despite the considerable compression effects, the formation of green matter is not adversely affected but even positively influenced.

Example 2:

To determine the yield-increasing effect of the compositions according to the invention was a drug mixture consisting of 70 % 2-Ghloräthanphosphonsäure, 20% chlorocholine chloride and 10 % > salicylic acid in exact plot experiments at different locations in winter barley of the variety Vogelsanger Gold, winter wheat of the variety Mironowska'ja 808 and winter rye variety Dankowskie Zlote. The parcel size was

2 16.5 ro. , The active substances were in the form of a 50% emulsifier.

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concentrated in 3OO 1 of water per hectare of parcel sprayer in JPeekes stage 7 of the crops.

The results (Table V) show a clear increase in yield.

Example 3:

In a vessel experiment, the influence on the yield and the water utilization was examined as well as some criteria of the water balance in summer barley of the Trumpf variety determined. An inventive drug mixture consisting of

"* 2

3 x 10 mol / l acetylsalicylic acid and 5 x 10 -5 mol / l 2-chloroethanephosphonic acid

was applied at a rate of 8 ml per vessel in the 5-leaf stage of the main shoot. The whole plant harvest took place in Feekes stage 10.

As can be seen from the results in Table VI, the transpiration coefficient (water consumption without evaporation from application to harvest in ml per g of dry matter) is lower than the control, without negatively affecting the yield. "This could be due to the relative release of water ( WA) decreases

 The WA is calculated according to the following equation.

a - b

WA =

c - b

a = Weighed leaf mass after 12 hours of siccation with an air suction of 12.5 at

b = dry matter (TM)

c = fresh mass (FM). '

This reduction in the relative release of water is also illustrated by the amounts of relative leaf water content

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Stocker (RWO), which increase under stress conditions compared to control.

Example 4:

To determine the yield-increasing effect of the inventive compositions with Zusatzberegnung an active ingredient mixture consisting of 2.2 kg acetylsalicylic acid, 0.37 kg 2-Chloräthanphosphonsäure and 1 kg chlorocholine chloride per hectare was tested in summer barley Trumpf in a field trial. The par

ρ cell size was 15 m. The number of repetitions was ⁿ to 6. The average of the barley was applied in 500 1 water per hectare in Peekes stage 7-8. The results summarized in Table VII show that by using this agent both with an additional irrigation of 60 mm at suboptimal soil moisture and without additional watering the grain and straw yields are to be increased.

Example 5:

In a vessel experiment, the influence of yield and the water utilization were examined, as well as some criteria of the water balance in sugar beet of the variety Mona determined. An inventive active ingredient mixture, consisting of 3 ^a 10 * "Mo 1/1 acetylsalicylic acid and 5 x 10 ~ ^ mol / l 2-Chloräthanphosphonsäure was applied with an application rate of 8 ml / vessel after the formation of 6 leaves. The plants were harvested 11 weeks after the sowing.

tables

In the tables mean:

A = 2 ~ chloroethane phosphonic acid

B = chloro choline chloride

C = salicylic acid

D = acetylsalicylic acid

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1918

(Table 1: II: C Be ei Influencing the the B O Longitudinal growth of summer ml 3: 1: 1 A 1 gers through 93 100 agents according to the invention 82 1 Length in 91 99 79 Concentration in mg / 100 ml drugs 1 89 99 % for control 75 50 A A 86 98 2i1i1 1: 3: 1 70 100 B 88 83 91 93 86 65 200 0 85 rr (25 % ί 90 84 Control) 400 A + B + 82 86 80 by the invention 800 2: 1: 79 81 7Q table 1 O: 76 74 74 Concentration in mg / 100 ml in relation to 3: 1 i compression against the 100 • -S '· "with spring barley medium 278 94 94 22 EDor in mg / 100 900 5000 2500 850 850 200

-8- λα Μ I £ 1918 g Table III: Combined Nati onseffekt the compositions of the invention

¹ " X ₁ . Length y ₁ ^{1 Z} 1 to Control Tp Tjt TJl \ V ^E Concentration in mg / 100 ml 98 85 79 + ¹ V * "TT T7 IIIA + B + G 100 10000 98 in % • 82 75 + 3: 1: 1 200 , ^: 97 100 78 70+ 400 87 95 100 73 65 + 800 84 99 81 99 78 R ₁  6 7 8th 8th

= Theoretical effect of the combination = Actual effect of the combination.

X ₁ = effect of A 3 ^ ₁ = effect of BZ ₁ = effect of 0

Table IV: Influence of green matter formation by the

B + C agents according to the invention Green mass yield in% 1: 1 for control 2: 1 Concentration in 100 drugs 3: 1 mg / 100 ml 103 1: 1 Mt 94 100 102 control 100 A 100 112 B 103 C 100 124 A + • 100 106 2: 100 1 : • 100 1 : 3 y

ο ι υ α.ί "*; ^Γ '' ί α."

Table V:

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Bee influssun g; the Kornerträ ^ e by the inventions to the invention means

a) in winter barley.

Test member Dose Grain yield in dt / ha in kg Location AS / ha ABC B

untreated control 65.9 47.5 63.7 7 ^, 5 54.3

) 1.5 66.2 59.1 73.9 76.6 61.4

70 % A + 20 % B + 10% C ^ 2.0 68.4 59.6 74.0 73.8 64.6

) 2 _S 5 69.1 58.5 74.8 72.7 62.9

b) for winter wheat

Tested song dose grain yield in dt / ha in kg location

AS / ha A B C J)

untreated control 44.2 45.9 42.5 44.2

) 1.5 49.8 47.8 53.3 50.3

70 % A + 20 % B + 10 % CK 2.0 48.7 53.0 53.4 51.7

) 2.5 47.3 61.2 54.4 54.3

c) at winter

probe member

untreated control

dose

in kg AS / ha grain yield in dt / ha

70 % A + 20 % B + 10 % 0 <2.0

) 2.5 33.1

46.1

45.3 46.5

/ ϊfi ftf $ *% S m $£ 3

, 4 y * f ι τ y

Table VI: Effect of the agent according to the invention on the utilization of water and the water content of spring barley (variety Trumpf)

Test element TM yield water transpira-

in use in the head of the EEC / vessel / vessel viable

untreated control 1310 3100 240 70 78 A + D 12.5 2370 210 46 84

Table VII: Influence on yield by the inventive agents under additional irrigation; at summer barley (Sort e Trumpf)

Tester grain yield in dt / ha straw yield in dt / ha unruly irrigated rainy irrigated

untreated

Control 46.3 48.4 '39.2 41.5

A + B + D 49.6 53.8 46.2 46.2

Table VIII: Effect of the required funds on the

Wassera usnutzung and W asserhaush old beet

Test element Beet yield Water transpira Water consumption coefficient in the efficient crop

in g / vessel per vessel in% in ml

untreated

Control 6.1 1660 275 85

A + D 6.4 1240 235ι 81-

Claims (1)

- 11 - £ y 4 i * l · M 1918 Claim: Means for regulating the Rflanzenwachsturns on the basis of 2-Chloräthanphosphonsäure or a mixture of 2-Chloräthanphosphonsäure and chlorocholine chloride, characterized in that in addition to customary auxiliaries and excipients they contain, as additional active ingredient salicylic acid, their salts or simple derivatives, such as acetylsalicylic _s , Dr. Sh / e