Agriculture and forestry

Mazur Oleksandr Vasyliovych  – Candidate of Agricultural Sciences, Associate Professor of the Department of Plant Production, Selection and Bioenergetic Cultures, Vinnytsia National Agrarian University (21008, Vinnytsia, Soniachna Str. 3, e-mail: selection@vsau.vin.ua)

Mazur Olena Vasylivna – Candidate of Agricultural Sciences, Аssistant of the Department of Plant Growing, Breeding and Bioenergetic Cultures, Vinnytsia National Agrarian University (21008, Vinnytsia, Soniachna Str. 3).

The article distinguishes of common beans varieties, which combine high grain productivity and adaptability. Variety samples are differentiated by their reaction to the change of hydrothermal regime. According to the number of beans on the plant varieties were distinguished: UD0302642  –  21 pcs., UD0302683  –  19,4 pcs., UD0303533 – 19 pcs., UD0300565 – 18 pcs. A larger number of beans was observed in variety samples, which responded well to the improvement of the hydrothermal cultivation regime: UD0302642, UD0302683, UD0303533.

The highest number of seeds per plant was provided by variety samples: UD0302642  –  62 pcs., UD0302746  –  62 pcs., UD0302683  –  58 pcs., UD0303533  –  56 pcs., UD0300565  –  54 pcs. By the number of seeds per plant the breeding material is characterized by a wide range of ecological plasticity, but rather a narrow spectrum of stability. This is also confirmed by the coefficients of variation we have obtained, a large number of varieties have average variability, and their coefficient of variation does not exceed 20%. However, sorted specimens  –  UD0302256, UD0303533, UD0302746, UD0302683, UD0300232, UD0302642 were characterized by a variation coefficient above 20%.

The highest weight of 1000 grains was provided by sorts of specimens: UD0300658  –  325 g, UD0300232  –  251 g, UD0300565  –  250 g, coefficient of plasticity which was above unit. The highest indices of homeostaticity provided varieties of specimens that were distinguished by a conservative reaction to a change in the hydrothermal regime for a mass of 1000 grains. These include: UD0302683 – 35,9, UD0302642  –  31,9, UD0302746  –  39,9, UD0302256  –  29,6.

The highest grain yield was provided by variety samples: UD0302746 – 11,9 g, UD0302642 – 11,1 g, UD0300565 – 11,0 g, UD0302256 – 10,7 g, UD0300658 – 10,4 g. Specified varieties belong to high-plastic and react well to the improvement of growing conditions. In addition, these varieties of specimens are characterized by high homeostaticity and a high stability variation, which is as close as possible to zero.

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