RU2406286C1 - Method of seeds preseeding treatment - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: method involves soaking the seeds in an aqueous solution containing the preparation Alto-super at a concentration of 0.001% and salicylic acid at a concentration of 0.01%.

EFFECT: method enables to reduce the consumption of chemicals and induction of disease resistance of seeds using known preparations in ultra-low concentrations.

Description

The invention relates to technology for pre-treatment of seeds.

A known method of presowing treatment of seeds, providing for their soaking in a solution of the drug Alto-Super (List of pesticides and agrochemicals approved for use in the Russian Federation. Appendix to the journal "Protection and Quarantine of Plants", No. 6, 2008, p.127).

There is a method of presowing treatment of seeds, providing for their soaking in a solution of salicylic acid (Pestova E.L., Kurganova L.N., Abramova N.A. et al. Treatment with salicylic acid as a possible factor for plant resistance // Materials of the All-Russian Conference "Plant Physiology" - The fundamental basis of modern phytobiotechnology. "- Rostov-on-Don: 2006, p.131-132).

The technical result of the invention is to reduce the consumption of chemicals and the induction of disease resistance of seeds when using known drugs in ultra-low concentrations.

This result is achieved by the fact that the method of pre-sowing seed treatment involves soaking them in an aqueous solution containing 0.001% Alto-super preparation and 0.01% salicylic acid.

The method is implemented as follows.

The well-known drug Alto-super and salicylic acid are dissolved in water at a concentration of 0.001% and 0.01%, respectively. Seeds are soaked in the resulting solution for 18-24 hours in accordance with traditional technology and planted in the ground.

To confirm the claimed technical result, a series of experiments was carried out. As the object of protection, wheat grains of Delta, Deia, Kupava and Krasnodar 99 varieties were used. The experiments were carried out using aggressive strains of Fusarium nivale, Fusarium oxysporum and Fusarium graminearum.

The mycelium of each phytopathogen species was grown under sterile conditions on a standard area of a solid substrate. At the end of the intensive growth period, the mycelium was collected, homogenized in sterile water, and 5 ml of each suspension was added to Petri dishes in which 50 wheat grains were placed, previously aged for 24 hours in water or solutions of Alto-super and salicylic acid in concentrations of 0 , 01% and 0.001% individually and in every possible combination of these solutions. The cups were placed in a climatic chamber and incubated at a temperature of 25 ° C, while maintaining the initial moisture content of the grain. The seeds of the same wheat varieties incubated in sterile tap water served as a control. The number of sprouted grains and grains germinated by Fusarium was taken into account. After the manifestation of fusarium, all grains were planted in laboratory 250-ml glasses filled with uncontaminated Fusarium soil. Within 19 days, the number of developing plants was recorded. Then the plants were released from the soil and the length of the stems, the longest root, the mass of stems and roots of each plant were measured. Each experiment was performed in triplicate.

The analysis of experimental data showed that in the control, the grain of all varieties of wheat was equally infected with all tested species of Fusaria. Fusarium grain infection slightly reduced the number of germinated seeds in the control. Moreover, Fusaria had an inhibitory effect on the development of seedlings, increasing in the order of listing: Fusarium nivale, Fusarium graminearum, Fusarium oxysporum. The treatment of infected grains with the aforementioned disease resistance inducers, to a varying degree, affected the germination of grain, the development of seedlings and the inhibition of its infection. Therefore, from compositions that completely inhibit Fusaria infection and thereby exclude the adaptation of phytopathogens to the drugs used, the composition containing 0.001% Alto-super and 0.01% salicylic acid was selected as the optimal inhibition of germination and development.

Qualitatively similar results were obtained with presowing treatment of barley and corn.

Thus, the proposed method provides a reduction in the consumption of chemicals and the induction of disease resistance of seeds when using known drugs in ultra-low concentrations.

Claims (1)

A method of presowing treatment of seeds, providing for their soaking in an aqueous solution containing 0.001% of the drug Alto-super and 0.01% salicylic acid.