Analysis of promising alfalfa populations according to feed productivity in the conditions of the Trans-Volga area in the Saratov region

In the extreme climatic conditions of steppe area Saratov region, one primary factors in improving alfalfa productivity are new highly productive and adaptive varieties. The purpose current study was to identify most promising populations according feed for development varieties Trans-Volga region. zoned blue variety ‘Yuzen’ used as standard variety. included State List 2006 Middle Volga Lower regions. plot Competitive Variety Testing sown spring with SKS-6-10 seeder wide rows a 70 cm row spacing six repetitions. plots were two-row, an 18 m2. Green mass accounted from (t/ha) period ‘bud formation-early bloom’ first subsequent cuttings by hand, two repetitions per 1 m2 plot. On average, amount studied samples 20.3–23.1 t/ha. population 6/14 showed smallest (20.3 t/ha). largest increase produced 7/16, 5/12 ‘Virineya’. They exceeded on 1.6–2.2 rest also slightly 0.2–0.3 maximum units found 1/07 ‘Virineya’ it amounted 4.6–4.9 f.u., minimum established 5/08 (4.1 According crude protein percentage, average during 2 years study, indicator shown 5/08, which 5.50 more than that