Vegetation duration and productivity of common bean varieties in the southern part of the western Forest-steppe

The industrial cultivation of beans is predertmined by economic and agronomic attractiveness the crop. However, selection varieties among main components technology, which determine growth efciency production. maximum level cultivars' potential realization largely depends on duration interphase vegetation periods common beans. Therefore, aim research was to study growing season grain productivity beans, depending varietal characteristics seed inoculation. According results, it found that control (bean variety Bukovynka without inoculation) 87 days. shorter in Halaktyka Slaviia – 80 84 days, respectively. for Nata Otrada longer than cultivar 89 92 And longest fertilization Ros 94 Seed inoculation with Rizoaktiv continued bean one day, Bukovynka, Ros, two three Yield most important property a variety. In our studies, yield increases from 0.65 2.87 t/ha, weather conditions year cultivation, pre-sowing seeds. highest increase obtained 2018, more favorable terms moisture. Thus, largest use Rizoactive provided (0.14 t/ha or 5.7 %), (0.15 5.5 %) (0.22 7.7 %). On average, according results conducted 2018–2020, seeds Rizoactive, variety, an 2.4 6.7 %. For years research, observed 2.60 slightly lower 2.50 2.40 treatment bacterial preparation Rizoaktiv. Key words: periods, Ryzoaktyv, yield.