Productivity of winter wheat depending on presowing cultivation of seeds

Abstract

The purpose. To establish influence of antifungal and antifungal-insecticidal mixtures for presowing cultivation of seeds separately, and also in the joint with growth regulator of plants AKM on form of elements of structure of a crop and productivity of plants of winter wheat. Methods. Before sowing seeds were treated with different seed dressers of antifungal action and antifungal-insecticidal mixture: Raksil Ultra (0,25 l/t), Lamardor (0,2 l/t), mixture of Lamardor (0,2 l/t)+Gaucho (0,25 kg/t), and also their mixture with growth regulator of plants — AKM (0,33 l/t). As control they used the alternative treated by water. The account of elements of structure of a crop and determination of biological productivity was spent by conventional techniques. Content of malonic dialdehyde in leaves of plants of winter wheat during vegetation was determined using spectrophotometric method on response to 2-thiobarbituric acid and then was converted on dry weight. Results. It is established that formation of elements of structure of crop and productivity of probed variety of winter wheat are influenced with the level of oxidative stress in plants. Application of the selected seed dressers promotes lowering of peroxidation of lipids that positively influenced backfilling of productive shoots, length and amount of ears, quantity of seeds in an ear and mass of 1000 seeds. Addition to seed dressers of AKM reinforced their action. Conclusions. The best indexes of elements of structure of a crop and productivity have been generated by plants at use of presowing treatment with Lamardor+Gaucho, and Lamardor + Gaucho + AKM. That has allowed realizing genetic potential of productivity on 47 and 51 % accordingly. Positive effect to presowing treatment of seeds on development of plants is stipulated by lowering activity of peroxidation processes.