Agriculture and forestry

Mazur Olena Vasylivna – Candidate of Agricultural Sciences, Senior Lecturer of the Department of botany, genetics and plant protection, Vinnytsia National Agrarian University (21008, Vinnytsia, Soniachna Str. 3).

In the course of research, varieties of common bean were selected, which were distinguished by stable indicators of the duration of the growing season, which depended to a lesser extent on the hydrothermal regime of the conditions of the years of research. This will contribute to the formation of a stable growing season in dry and optimal years of research in terms of moisture supply. The highest coefficients of repeatability were noted in varieties of common bean: UD0301786 - 0.98, with a coefficient of variation (V) - 1%; UD0302656 – 0.97, coefficient of variation – 1%; UD0300495 – 0.95, coefficient of variation – 1.45%; UD0302223 – 0.95, and the coefficient of variation – 1.34%; UD0302398 – 0.95, coefficient of variation – 1.33%; UD0300019 is 0.95, and the coefficient of variation is 1.3%.

The weight of 1,000 grains affects the grain productivity, while, as already noted, varieties with low variability of the weight of 1,000 grains belong to drought-resistant ones. Higher values of the mass of 1000 grains compared to the standard and, at the same time, lower variability according to statistical indicators were identified in the variety samples: UD0300577 – 284.7 g, repeatability coefficient – 0.9, variation coefficient – 7%; UD0303753 – 274.5 g, repeatability coefficient – 0.9, coefficient of variation – 7.1%; UD0300004 – 265.4 g, repeatability coefficient – 0.86, coefficient of variation – 9%; UD0303398 – 243.4 g, repeatability coefficient – 0.91, coefficient of variation – 6.0%; UD0302256 – 234.6 g, repeatability coefficient – 0.9, coefficient of variation – 8.4%; Yield is a summary feature, the level and stability of which are affected by resistance to diseases and pests, drought resistance, heat resistance, cold resistance, and manufacturability.Higher yield and lower variability compared to the standard was noted only in variety samples: UD0300577 – 333.0 g/m², repeatability coefficient – 0.98, and variation coefficient – 4.5%; UD0303753 is 329.0 g/m², repeatability is 0.97, and coefficient of variation is 7.1%. The vast majority of variety samples were characterized by higher variability in the level of productivity, this is due to the influence of adverse growing conditions that cause stress.

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