RU2504154C2 - Stimulant for presowing treatment of grain crop seeds - Google Patents

Abstract

FIELD: chemistry.

SUBSTANCE: invention relates to agriculture. Copper (II) bis-malonediamide chloride of formula [CuCl₂(C₃H₆N₂O₂)₂] is used as a growth stimulant for grain crops.

EFFECT: invention increases germination power and germination capacity of seeds.

3 tbl, 1 ex

Description

The invention relates to the field of agriculture and is intended to increase the energy of germination, germination of seeds and accelerate the start of ripening of crops.

It is known the use of copper (II) bismalonamide nitrate Cu (NO ₃ ) ₂ · 2CH ₂ (CONH ₂ ) ₂ as a stimulator of grain growth [1].

It is known to use bis (diethylammonium) dihydrogen-1-hydroxyethyl-i-diphosphonate monohydrate as a stimulant for growing root crops of crops [2].

It is known to use aqueous solutions of hydrogen peroxide, copper ions and oxalic acid for treating seeds of grain crops and spraying plants during the growing season [3].

It is known to use copper (II) dihydrate tetraaquababismalondiamide sulfate (BMDAH) of the formula [Cu ₂ (SO ₄ ) ₂ · (C ₃ H ₆ N ₂ O ₂ ) ₂ (H ₂ O ₄ ] · 2H ₂ O as a means for presowing treatment of seeds of agricultural crops [four].

Known drugs allow energy and seed germination rate, but require several processing operations and involve the use of more expensive drugs.

The invention is aimed at creating a stimulator that accelerates the energy and speed of germination of seeds of grain crops.

The technical problem solved by the invention is the expansion of the range of stimulants for presowing treatment of seeds of grain crops.

The technical result is to increase the energy of germination and germination of seeds, accelerate the onset of ripening of crops, as well as expanding the arsenal of funds for this purpose.

This is achieved by using copper (II) bismalonamide chloride of formula (I) [CuCl ₂ (C ₃ H ₆ N ₂ O ₂ ) ₂ ] as a means of increasing the germination energy and germination of cereal seeds.

The proposed stimulator was obtained from an aqueous solution of copper (II) chloride and malonic acid diamide (molar ratio Cu: L = 1: 2) by slow evaporation for 6-7 days at a temperature of 18-22 ° C. The product yield is 64.8%. Unit cell parameters: a = 8.3177 (6) Å; b = 7.3586 (5) Å; c = 10.0195 (7) Å; α = 90 °; β = 108.101 (2) °; γ = 90 °; V = 582.91 (7) Å ³ ; d _calc. = 1.929 mg m ^-3 ; Z is 2; space group P2 ₁ / n (monoclinic syngony). The Cu atom is coordinated by two Cl atoms [Cu-Cl = 2.7696 (3) Å] and four oxygen atoms [Cu-O = 1.9484 (8) and 1.9769 (9) Å] from two chelate malondiamide ligands, forming octahedral geometry. The BMDAH complex exists in the crystal in the form of a monomer and has a crystallographic center of symmetry.

Example. The seeds of wheat of the Moskovskaya-35 variety, barley of the Elf variety, and oats of the Adamo variety were soaked in distilled water (control) and in a 0.001% aqueous solution of copper (II) bismalondiamide chloride for 2 hours at the rate of 1 liter of solution per 1 kg of seeds. The energy of germination and germination of seeds was determined according to the method of state variety testing of crops. To determine the germination of seeds, 100 pieces were taken, in four replicates. Seeds were counted in a row without a choice from the total mass of the studied culture isolated in the analysis for purity. Each replicate was placed in a separate Petri dish. Seeds were spread evenly on wet filter paper so that they did not touch each other. The moisture in the litter was maintained throughout the germination period.

Comparative data on the energy of germination and germination of seeds are given in table 1-3.

Table 1 The influence of BMDAH on the germination energy and germination of seeds of spring wheat cultivar Moskovskaya-35 Experience Options Germination energy,% Germination,% The control 53.1 75, Experience 69.3 288.6

table 2 The influence of BMDAH on the germination energy and germination of barley seeds of the Elf variety Experience Options Germination energy,% Germination,% The control 34,4 44.1 Experience 42,2 60.8

Table 3 The influence of BMDAH on the germination energy and germination capacity of Adamo oat seeds Experience Options Germination energy,% Germination,% The control 16,0 25.1 Experience 26,4 43.5

From the data in Tables 1-3 it follows that when seeds are treated with a stimulant for pre-sowing seed treatment, the germination energy increases by 16.2% (wheat of the Moskovskaya-35 variety), 7.8% (barley of the Elf variety), 10, 4% (Adamo oats), germination - 13.4% (Moskovskaya-35 wheat), 16.7% (Elf barley), 18.4% (Adamo oats) .

Thus, the use of a stimulant for pre-sowing treatment of grain seeds containing copper (II) bismalondiamide chloride can significantly increase the germination energy and germination of wheat seeds of the Moskovskaya-35 variety, barley of the Elf variety, and Adamo oats, which accelerates the onset ripening crops.

Information sources

1. RU No. 2374254, C1, cl. C07F 1/08, A01N 55/02, 05.26.2008.

2. RU No. 2283317, C1, cl. C07F 9/38, A01N 57/18, A01P 21/00, 03/21/2005.

3. RU No. 2088086, cl. A01N 37/06, 08.27.1997.

4. Application 2009140526/04 (057622), cl. A01N 59/20, A01P 21/00, 02/02/2009.

Claims (1)

The use of copper (II) bismalondiamide chloride [CuCl ₂ (C ₃ H ₆ N ₂ O ₂ ) ₂ ] formulas as a cereal stimulant.