Agrobiological characteristics of barley species of VIR collection on the important directions of selection in Eastern Siberia

The results of the agrobiological evaluation of 74 samples of the world collection of All-Russian Research Institute of Plant Industry named after N.I. Vavilov were analyzed for the period 2013-2016 on individual elements of productivity, yield and the degree of their variation (Cv, %). The earli-est maturing (vegetation period 68-69 days) were the samples of six-rowed barley Leningradsky and Potra. The highest capacity for productive tillering (1.93-2.40 productive stems) had Rupal, Corona, Malva, Chelyabinets 2, Nutans 302, Belgorodets, Talovsky 9. The best graininess of the ear had 18/7, Tduneja, Spratt, Sv. 66905, Milns Golden Promise, Vladimir. According to the mass of 1000 grains (40.0-52.3 g), T-12 (Nutans 129), Yastreb, Belgorodets, Talovsky 9, Yak-401, Nudum 95, Co-dac, Vakula, Potra, Kolchan were the best ones. The samples 18/7, Tduneja, T-12 (Nutans 129), Elf, Belgorodets, Talovsky 9, Heimdal, Nudum 95, Co-dac, Vakula, Kolchan were characterized by the best grain mass from one plant (1.40-1.79 g). Ac-cording to the productivity and resistance to lodg-ing, the most stable during all the years of research were samples M 1913/88 (Czechoslovakia), Asem (Kazakhstan), Etienne (Canada). Their yield reached 555.0-575.0 g / m2, which was 8.2-12.1 % higher than that of the standard grade Acha. The studied barley samples are of practical interest for solving regional selection problems in Eastern Si-beria.