AN EFFECT OF SIZE OF SOWING MATERIAL ON BARLEY PRODUCTIVITY
2018
G. M. Musalitin | V. A. Boradulina
The article gives the results three-year study of size of seeds, germ roots and productivity of barley. For the experimenting we chose large and middle fractions of seeds of the varieties ‘Vorsinsky 2’ and ‘Salair’. Sprouting was carried out in the thermostat according to GOST 12038-84. The plots with the area of 10 m2 were laid fallow three times with a sowing norm of 5 ml of sprouting grains per hectare. The weather conditions during the experimenting were different. The year 2012 was very dry during the vegetation period. The year 2013 was more favorable with moderate drought of an early summer. In 2014 a long drought of the first term of vegetation period didn’t allow forming full extra sprouts and get larger yields. During the years of study the larger grains of both varieties gave the largest number of sprouts with six and seven roots (‘Vorsinsky 2’ on 26% and ‘Salair’ on 11%) than the smaller ones. In the large fraction we noticed smaller amount of non-germinated seeds. The variety ‘Vorsinsky 2’ had 5,55 roots per seed in the large fraction and 4,82 in the small one in average during the years of study; the variety ‘Salair’ had 5,89 and 5,39 respectively. As a result, the productivity of the variety with large seeds exceeded that of the variety with small ones, ‘Vorsinsky 2’on 0,34 t/ha and ‘Salair’ on 0,3 t/ha. Thus, the larger seeds form larger number of germ roots and productivity with no reference to the conditions of vegetation and genotype.
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