HU181662B - Plant growth regulating composition - Google Patents

Abstract

The compositions of the invention contain in their formulations in addition to the known growth regulator 2-Chloräthar.phosphonsäure Cu, H-ions in amounts of 0.3 to 10 wt .-%, based on the 2-Chloräthanphosphonsäure.

Description

Peter Britz Master of Agriculture, Sandersdorf, Dr. Kochmann Wemer Master of Chemistry, Wolfen, Dr. Láng Sieghaid Master of Agriculture, Cunneisdorf, Lehmann Klaus Master of Agriculture, Sandersdorf, Dr. Steinke Walter Master of Chemistry, Wolfen, German Democratic Republic

patentee:

VEB Chemiekombinat Bitterfeld, Bitterfeld,

German Democratic Republic

Plant growth regulator

Field of the Invention

The compositions of the present invention can be used to increase yields of various crop crops in agriculture and provide improved seeding and harvesting technology.

Features of the prior art

Chlorcholine chloride, chloroethane phosphonic acid, succinic acid dimethylhydrazide, maleic hydrazide, etc. are known to be useful in the metabolism and growth of plants. intervention. Artificial regulators of plant metabolism and growth are known to attack different receptors and may trigger different reactions depending on the stage of development of the plant, the mode of application, the time of application and the concentration and formulation of the active ingredient.

It is also known that growth regulators can be applied in different ways. For example, the germination process may be inhibited or stimulated. In addition to the general morphological changes of the plant, the increase in plant length and thickness can also be controlled. From now on we can influence the bud formation, the flowering process and the determination of the sex as well as the partenocarp effect. It is also not insignificant to use growth and metabolism regulators, which may positively influence transport and storage properties, as well as enhance established resistance to biotic and abiotic agents. It should also be noted that the use of such regulators has a decisive influence on nutrient uptake, nutrient transport, and the formation of plant-contained and stored substances.

It is also known that the use of very high levels of growth regulators can lead to environmental pollution.

¹⁵ The aim of the invention

The aim of the invention to provide plant growth regulating compositions which can be used economically in kultúmövények ²⁰ in a low application rate in accordance with various requirements of practice.

Substance of the present invention exerting ²⁵ According to the invention the object is achieved in that the growth regulating composition in addition to customary auxiliaries and additives as an active ingredient 2-chloroethane-phosphonic acid and Cu ++ - ions, the latter in an amount from 0.3 to 10% by weight, tar ³⁰ talmaz the Based on 2-chloroethane phosphonic acid.

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Addition of metal ions to chloroethane phosphonic acid improves the effect of the acid, reduces the dose required, enhances yield formation and reduces the toxicological burden on the environment. An advantage of the composition according to the invention is that when applied, the undesirable effect on the crop plants, for example the effect on the total weight, can be reduced. According to the intended use, the composition of the invention may be formulated as a solution, emulsion, suspension, paste, powder or granules, which may be prepared in a known manner.

The composition of the present invention may be combined with natural phytohormone and other artificial regulators to influence growth and metabolic processes in accordance with its intended use. For example, regulating the germination of seeds (Striga spp.), influencing the growth of vegetative storage organs (for example, potatoes), stabilizing grain stems, inducing morphological changes in dicotyledonous plant species (influencing the growth of cucumber), increasing the growth rate of pineapple , accelerating the ripening of tomatoes, peppers and citrus fruits, picking fruit, decapitating cotton, retraining fruit crops, increasing the flow of pine resin, increasing resistance to biotic and abiotic pests, such as fungi and bacterial, can be used to increase yields and improve sowing and harvesting technology.

Execution examples

The following examples further illustrate the composition of the present invention:

Example 1

Influence of long growth in cereal culture

Under various conditions, a field experiment was conducted with the composition of the present invention and the retardation properties of the cereal relative to the concentration of 2-chloroethanoic phosphonic acid and chlorcholine chloride were investigated. The formulation was sprayed with 600% water per hectare in the form of a 50% concentrate with a back sprayer. Chlorcholine chloride was used at the 5-leaf stage and the other agents at 7 Feekes.

When compared with rye, 2 kg per hectare commonly used in practice

2-Chloroethane phosphonic acid with the combination used according to the invention, it will be appreciated that the combination according to the invention must be used in half the volume in order to achieve the same effect. The same applies to the use of the composition of the invention in wheat compared to chlorcholine chloride.

agent Amount of active substance used / ha Growth height of the four experimental formulations relative to the control winter barley winter rye winter wheat control 100 100 100 Klórkolin chloride 2.0 - 99 87 2-chloroethane-phosphonic acid 2.0 89 91 81 2-Chloroethane phosphonic acid + CuSO ₄ · 5H _at O 3: 1 1.0 - 93 84 1.5 - 91 83

Example 2

Yielding on winter rye Winter rye of the "Dankowskie Zlote" variety was treated with the compositions according to the invention in a pot experiment at stage 7. 65

Example 3

Shortening of summer wheat

Cereal plants (summer wheat of the Hatri variety) were treated with the compositions of the invention in an air-conditioned room. 0.1% (w / w) solutions of the test compounds were poured into petri dishes and the leaf plates of the 14-day bivalve plants were slowly immersed in the solution. In this application, the wetting agent is applied to the cereal. After dripping, the plants were again placed in the culture flask and the results were evaluated four weeks after the start of germination. The length of the pseudorangle between the first and second leaf plates was evaluated and compared with the values of the untreated control.

« agent Application rate active ingredient / ha kg Straw g / breeding pot Eye g / g control - 55.4 37.3 2-ethane-Chlorophenoxy -phosphonicacid 2.0 55.4 35.0 CuSO ₄ · 5H ₂ O 0.2 55.8 37.0 2 klóretán- -phosphonicacid 1.0 + + 59.6 44.3 CuSO ₄ · 5H ₂ O 0.2

As shown in Table I, the composition of the invention is synergistic.

The effect of the combination was calculated using the Colby equation:

_ ^x > Yi Ej = ---- 100

Xi = relative length induced by Compound A dose p;

y _t = relative length produced by Compound B dose q;

Ei = expected height after administration of Compound A + B at dose p + q;

E _r = the length obtained using the dose of p + q of Compound A + B.

If Ei> Er , then there is synergy, if Ei = E _r , then the effect is additive, if Ei <Er, then antagonistic effect 15 is there. Quantity harvested is kg / 100 m ² Product kg / ha 20 harvesting 1.5 chlorine 1.0 chlorine Time post-treatment Control ethane-phosphate ethane-phosphate number of days acid fonsav ♦ * 0.2 CuSO ₄ 25 • 5H ₂ O 3 59 37 46 6 44 119 99 10 32 79 90 30 13 13 28 43 16 15 .15 30 19 16 7 23 22 7 26 15 7 35 30 21 7 33 11 37 11 40 6 44 7 40 47 7 54 11 57 Ί 297 326 308

Table I

Influence of thread length in%

agent Concentration Mix ratio Xi yi Er E _I Et-En 2-Chloroethane phosphonic acid + 10 ° 2: 1 43 100 37 43 + 6 CuSO ₄ · 5Hp 3: 1 42 100 37 42 + 5 10 ' ¹ 2: 1 55 100 52 55 + 3 3: 1 52 100 30 52 +22

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Example 4

Effect of the Invention on Tomato Measurement Harzfeuer tomatoes were treated with the composition of the present invention at a concentration of 1000 liters of water per hectare to accelerate the harvest and compared with 2-chloroethane phosphonic acid and the tomatoes were reddish. The following results were obtained:

The table shows that harvest completion was 14 days ahead of the surface treated with 2-chloroethane phosphonic acid and 41 days ahead of the untreated surface.

Example 5

For yield control apples, "Golden Dalicious" apple trees were treated with the composition of the present invention for 3 years at 1500 liters of water per hectare, 1100 trees per hectare 30 and 40 days after flowering, and the cultures were compared with untreated and 2- chloro15 cultures treated with ethane phosphonic acid.

agent Concentration in ppm Yield [kg / tree] One year Two years 3 years total return control - 23.0 36.5 12.3 71.8 2-chloro is a phosphonic acid 150 23.4 28.3 21.5 73.2 2-chloroethane-phosphonic acid 120 + + 23.5 27.2 $ 22 73.6

CuSO ₄ · 5H ₂ O 30

Example 6

The growth-regulating effect of the composition of the present invention on weight gain, dry weight, crude protein and copper content of the eye was investigated in rye.

The results are shown in the following tables.

a) Mass gain shortly after application in rye g / plant

Variant Application Day 3 days later In 9 days In 15 days control 25 31 57 93 Chloroethane phosphonic acid 1.2 kg / ha 23 28 49 74 Chloroethane phosphonic acid 1.1 kg / ha + 0.2 kg / ha CuSO ₄ · 5H ₂ O 24 30 55 87 b) Dry matter, crude protein and copper content after administration of the composition of the invention Variant Dry matter% Crude protein content of dry matter% Cu ppm eye straw eye straw eye straw control 89.6 92.4 11.8 2.9 3.1 2.4 Chloroethane phosphonic acid 1 $ kg / ha 89.3 92.5 12.1 2.8 2.5 2.2 Chloroethane phosphonic acid 1,1 kg / ha + 0,2 kg / ha CuS0 ₄ · 5H ₂ O 89.6 92.5 12.6 2.6 4.2 2.7

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Claims (2)

Claim: A plant growth regulator containing 2-chloro-ethanoic phosphonic acid, characterized in that it contains, in addition to the usual excipients and additives, 0.3 to 10 wt.