Ashaeva O.V., Koblova I.S.

Productivity and quality of winter barley grain at different seeding rates

The article studies the effects of different sawing rates of witer barley on crop yield. The studies were conducted on the experimental field of the Federal State Educational Institution of Higher Education in the Nizhny Novgorod State Agricultural Academy at the Novinki training experimental establishment from 2015 to 2018 on light gray forest soils. The object of research was Volzhsky Perviy variety of winter barley. We studied different sowing rates: 2, 3, 4, 5, 6, and 7 million germinating seeds per 1 hectare. The predecessor was clean fallow. On average, over 3 years of research, the highest grain yield in the experiment - 4.47 t / ha was obtained at a sowing rate of 6 million germinating seeds per 1 ha. An increase in the seeding rate from 2.0 to 7.0 million germinating seeds per 1 ha has led to an increase in the density of the productive stalk from 252 to 367 pcs / m2. The number of grains per spike in the study varied within a narrow range from 38 to 39 pieces, whereas the weight of 1000 grains varied from 32.7 to 33.8 g. We observed high spike productivity from 1.260 to 1.303 g due to the high number of grains per spike. The grain obtained in the experiment had a high nature: from 615 g / l at seeding rates of 6 and 7 million units/ha to 624 in the variant with a seeding rate of 3 million units / ha. The protein content increased from 9.55 to 10.69% with an increase in the seeding rate from 2 to 7 million units / ha. The ability to germinate was high from 98.7 to 98.9%in all variants of the experiment

Keywords: WINTERS BARLEY, CROP YIELD, CROP YIELD STRUCTURE, GRAIN QUALITY