RU2770880C1 - Method for pre-sowing treatment of winter wheat seeds - Google Patents

Abstract

FIELD: agriculture.SUBSTANCE: invention relates to agriculture. A method for pre-sowing treatment of winter wheat seeds is proposed, including pre-soaking of the seed material in an aqueous solution of a stimulating drug, as which a chelated compound of zinc and threonine is used. As a seed material, winter wheat seeds are used, which are soaked for 1 hour before sowing in an aqueous solution of a stimulating drug with a concentration of 0.005-0.1%.EFFECT: invention is used to improve the quality of winter wheat seeds.1 cl, 1 tbl

Description

The invention relates to agriculture, namely to crop production and can be used to improve the sowing qualities of winter wheat seeds.

Gibberellin, which is widely used to activate seed germination, is known as an analogue in properties.

However, gibberellin is an expensive drug; its use causes waste of plastic substances [Muromtsev G.S. et al. Fundamentals of chemical regulation of plant growth and productivity. - Agroprom-izdat, 1987. - S. 33-80].

There is a known method of planting and fertilizing, including a complex set of substances, including copper and zinc chelates with EDTA when growing grapes (patent No. 2688425, A01G 17/00, 2019).

The disadvantage of this method is its use only on grape crops.

Also known is a method of stimulating the root-forming ability of grape cuttings, which consists in pre-soaking the cuttings (seed) in an aqueous solution of the amino acid threonine (patent No. 2717978, class A01G 17/02, 2020 - prototype).

However, in this method, threonine is used only for grape cuttings.

The technical result is to expand the range of biologically active substances to improve the quality of winter wheat seeds.

The technical result is achieved by the fact that in the method of pre-sowing treatment of winter wheat seeds, including pre-soaking the seed in an aqueous solution of a stimulating drug consisting of threonine, according to the invention, a chelate compound of zinc and threonine is used as a stimulating drug, and winter wheat seeds are used as seed material , which are soaked for at least 1 hour before sowing and in an aqueous solution of a stimulating drug with a concentration of 0.005-0.1%.

The novelty of the proposed technical solution lies in the fact that as a means to improve the sowing qualities of wheat seeds, an aqueous solution of a stimulating drug is used, which is a chelate compound of zinc and threonine.

The method of pre-sowing treatment of seeds of winter wheat is carried out as follows.

Winter wheat seeds are soaked for 1 hour before sowing in an aqueous solution of a stimulating drug with a concentration of 0.005-0.1%. A chelating compound of zinc and threonine is used as a stimulating drug.

Soaking seeds of winter wheat for 1 hour was carried out in strict accordance with GOST 12038-84 (Seeds of agricultural crops).

The use of an aqueous solution of a chelate compound of zinc and threonine with concentrations of 0.005-0.1% is determined by the need to select the optimal concentration among the concentrations that give fairly good results. If the concentration of the aqueous solution is less than 0.005%, then the treatment will be ineffective, and if it is more than 0.1%, it can lead to accumulation of copper, which will negatively affect the germination of seeds. According to the results of experiments, the most optimal concentration is 0.025%.

Complex compounds of zinc with biogenic amino acids, in particular, with threonine, are promising biologically active compounds that regulate biologically active processes [Kabirova et al. Kazan, 2016]. A chelate compound of zinc and threanine was obtained and identified by the method of Kuznetsova [Kuznetsova N.S. et al. Chita, 2019].

An example of a specific implementation of the method

The growth-regulating activity of the chelate compound of zinc and threonine and its effect on the sowing qualities of seeds were determined by model methods of laboratory screening on seeds of winter wheat cv. Adel.

In the course of the research, the optimal growth-regulating concentration of the chelate compound of zinc and threonine, its effect on the sowing qualities of seeds, the growth of seedlings, and the accumulation of dry mass in them were determined.

To study the growth-regulating activity, aqueous solutions of the drug were obtained with a concentration of 0.005%, 0.01%, 0.025%, 0.05%, 0.1%.

Gibberellin 0.001% aqueous solution (standard) was used as an analog in properties. Water was used as a control for seed soaking (control).

Seeds of winter wheat cv. Adel were soaked in aqueous solutions of preparations for 1 hour, and then germinated in Petri dishes in a thermostat at a temperature of 25°C on wet filter paper for seven days. The experiments were repeated four times. In each repetition, 50 seeds were used.

Conducting laboratory screening made it possible to establish the growth-regulating activity of the test drug. The optimal growth-regulating activity of the compounds was judged on the basis of such indicators as germination energy, length, and dry weight of seedlings.

Winter wheat seeds of the Adel variety, treated before sowing with a 0.001% solution of the preparation gibberellin (standard), solutions of the test preparation of different concentrations (0.1%, 0.05%, 0.025%, 0.01%, 0.005%) and not treated were germinated in Petri dishes in a thermostat at a temperature of 25°C. The repetition of the experiment is fourfold.

The results of the study are presented in table 1.

The results of the studies (Table 1) made it possible to identify the growth-regulating activity of the test drug and its effect on the quality of the seed, to establish the optimal concentration of the drug solution for seed treatment before sowing.

Growth-regulating activity of the test drug was manifested in the activation of seed germination, an increase in the energy of seed germination (85-90%, in control - 81%, when seeds were treated with gibberellin - 83%) and their germination (90-94%, 83 and 86%), respectively) , biometric indicators: the length of the roots (5.5-6.2 cm, in the control - 5.1 cm, the use of gibberellin - 5.8 cm) and the length of the shoots (3.8-4.5 cm, 3.7 and 3 .9 cm), as well as their masses (roots - 0.35-0.49, 0.30 and 0.34 mg/100 seedlings; sprouts (0.39-0.46, 0.33 and 0, 37 mg respectively).

The maximum absolute values of the seed quality indicators considered in Table 1, taking into account the control and reference variants, were obtained in the variant with seed treatment with a solution of the test preparation at a concentration of 0.025%. In this variant, the germination energy and germination increased by 9 and 11% in relation to the control, the length of the roots and shoots increased by 15.7 and 16.2%, their weight - by 26.7 and 30.3%; in relation to the standard (treatment of seeds with 0.001% solution of gibberellin) - by 7 and 8%, 6.9 and 15.4%, 26.5 and 24.3%, respectively.

According to the research results, the optimal concentration of the solution of the test preparation for the treatment of winter wheat seeds in order to improve the quality of the seed material is 0.025%.

Claims (1)

A method for pre-sowing treatment of winter wheat seeds, including pre-soaking the seed in an aqueous solution of a stimulating drug consisting of threonine, characterized in that a chelate compound of zinc and threonine is used as a stimulating drug, and winter wheat seeds are used as a seed material, which are soaked in within 1 hour before sowing in an aqueous solution of a stimulating drug with a concentration of 0.005-0.1%.