T. K. Sheshegova1, 2, I. N. Shchennikova1, 2, L. P. Kokina1, L. M. Shchekleina1
1Federal Agricultural Scientific Center of North-East, Lenin Street, 166-а, Kirov, 610007, Russian Federation
2Vyatka State Agricultural Academy, Oktyabrsky ave., 133, Kirov, 610017, Russian Federation
Abstract. The studies were carried out in the N.V. Rudnitsky Federal Agrarian Scientific Center of the North-East in 2015–2017. The aim of the work was to determine the regularities of yield formation and phytosanitary state of crops and seeds of spring barley ‘Rodnik Prikamia’ in dependence on the sowing and harvesting dates and application of growth regulators. There were four sowing dates with the difference about five days between the dates. There were also four harvesting times: I – early, the phase of wax ripeness; II – optimal, the phase of full ripeness; III – in 5 days after the optimal date; IV – in 10 days after the optimal date. Two growth regulators were applied: Emistim (solution) and Albit (runny paste). The growth regulators were used in pure form (seed treatment, crop treatment in the tillering phase; single and double treatments) and in the composition of a tank mixture with Bunker (water-suspension concentrate) fungicide for the seed treatment. Common methods were used for immunological studies. The spraying of crops with Albit, as well as the treatment of seeds with the tank mixture of Albit and Emistim with Bunker with the following spraying of crops by the regulators, caused the obtaining of the highest productivity: 561, 550 and 552 g/m2. The preparations decreased the development of root rots in all years, and the limitation of net blotch was higher under conditions of sufficient humidification. Use of growth regulators was more effective in the years with the deficit or excess of moisture during the growing season. The highest yield of conditioned seeds was obtained at sowing in early terms, especially under conditions of the moisture deficit. Plants of early sowing terms were more susceptible to diseases under favourable growing conditions, but due to the adaptability of the variety, the productive potential of these phytocenoses does not worsen. The highest yield capacity was obtained in the case of harvesting in the phase of full ripeness; it averaged 3.24 t/ha.
Keywords: spring barley; growth regulators; sowing date; harvesting date; weather conditions; yield capacity; seed quality; fungi diseases; fruit fly.
Author Details: T. K. Sheshegova D. Sc. (Biol.), head of laboratory, professor; I. N. Shchennikova D. Sc. (Agr.), head of laboratory, professor (e-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.); L. P. Kokina, Cand. Sc. (Agr.), senior research fellow; L. M. Shchekleina, Cand. Sc. (Agr.), senior research fellow.
For citation: Sheshegova T. K., Shchennikova I. N., Kokina L. P., Shchekleina L. M. Influence of Cultivation Technology on Yield and Grain Quality of Barley ‘Rodnik Prikamia’. Dostizheniya nauki i tekhniki APK. 2018. Vol. 32. No. 10. Pp. 28–32 (in Russ.). DOI: 10.24411/0235-2451-2018-11006.