M. S. Gvozdeva, G. V. Volkova
All-Russian Research Institute of Biological Plant Protection, Krasnodar, p/o 39, 350039, Russian Federation
Abstract. The purpose of the studies was to evaluate the effectiveness of 11 biological protectants against seed and soil infection on winter wheat ‘GROM’. The work was performed under conditions of the Krasnodar Territory in 2017–2019. Meteorological conditions of the growing seasons were favourable both for the development of the crop and for phytopathogens. Biological products Trichocin, WP and Pseudobacterin-2, F were the most effective against pathogens of seed infection, suppressing them by 64.3% and 57.1%, respectively. The efficiency of the chemical standard Maksim, SС was 100%. In the phase of spring tillering, several preparations showed the effectiveness of 50.0% and higher against a complex of root rot phytopathogens (mainly of the Fusarium etiology) whereas the development of the disease in the control (without treatment) was at the level of 15.0%. These preparations were Vitaplan, WP (100%), Bisolbisan, F (84.0%), Fitolavin, SC (81.3%), Fitosporin-M, WP (74.0%), Alirin B, WP (60.0%), Gamair, WP (50.7%), test prototype of a biological product developed by All-Russian Research Institute for Biological Plant Protection, F (50.0%), as well as the chemical standard Maksim, SC (73.3%). In the phase of milk-wax ripeness, the synthetic fungicide Maksim, SC (60.9%), test prototype of a biological product developed by All-Russian Research Institute for Plant Biological Protection, F (52.2%), Alirin B, WP (47.8%), and Gliokladin, F (45.6%) were maximally effective against root rot of the Fusarium etiology. The use of biological protectants made it possible to save from 2.0% (Fitolavin, SC) to 3.4% (Pseudobacterin-2, F) of the winter wheat crop, compared to the control (without treatment). The best results were provided by the chemical standard Maksim, SC; the yield in this option was higher by 1.0–2.4% than for biological products, and higher by 4.4%, compared with the control (without treatment).
Keywords: biological protectants; efficiency; winter wheat; seed infection; Fusarium root rot; biological and economic efficiency.
Author Details: M. S. Gvozdeva, junior research fellow, post graduate student (e-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.); G. V. Volkova, D. Sc. (Biol.), chief research fellow, head of laboratory (e-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.).
For citation: Gvozdeva MS, Volkova GV. [Evaluation of the effectiveness of biological protectants against seed and soil infection on winter wheat]. Dostizheniya nauki i tekhniki APK. 2020;34(7):43-8. Russian. doi: 10.24411/0235-2451-2020-10707.