Agriculture and forestry

Mazur Aleksandr Vasylovych – Candidate of Agricultural Sciences, Associate Professor of the department of plant production, selection and bioenergetic cultures of the Vinnytsia National Agrarian University (21008, Vinnytsia, 3, Solyanskaya St., e-mail: vd@vsau.vin.ua)

Mazur Olena Vasylivna – assistant of the department of plant growing, breeding and bioenergetic cultures of the Vinnytsia National Agrarian University (21008, Vinnytsia, 3, Solnyschaya st.)

Made the ranking of varieties of common bean according to the coefficient of ecological plasticity and stability varansi according to their response to changing environmental conditions is done. Grades are distributed according to the level of ecological plasticity and stability according to their variability to improve the conditions of research. The ranking of the coefficient of plasticity and varancau stability contributed to the selection of the most adapted varieties with yield and disease resistance. According to the coefficient of plasticity, the best varieties were UD0302746, UD0302642, UD0300565, UD0300658, which provided a regression coefficient (bi) of ≥1 and ensured the highest yield among selected varieties. The resistance to lesions by ascocytosis distinguished UD0300658 varieties - 85.9%, UD0300856 - 86.8%, UD0300565 - 85.4%, and the coefficient of environmental plasticity greater than 1.

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