Evaluation of the adaptive ability and stability of the Siberian bean vegetable gene pool

Relevance. The evaluation of adaptive ability of varieties is an actual direction in selection. Phenotypic plasticity of legume crops, in particular green bean, in Siberian region has not been studied enough. There is a need to evaluate grade samples for adaptability and stability, as highly and medium adaptive varieties can realize their genetic potential of productivity in extreme continental climate of Western Siberia.

Materials and methods. On the basis Department of Selection, Genetics and Forestry, Novosibirsk State Agrarian University (2015-2019), long-term evaluation of grade samples of green bean of different ecological and geographical origin with a bush type of growth was carried out. Of particular interest are signs that have a significant impact on crop productivity. The signs were studied: number of beans on plant, weight of beans from plant, weight of one bean, yield capacity. The objective of the study is to evaluate the adaptive ability and stability of common bean varieties in the conditions of Siberian region.

Results. The conditions of Western Siberia are suitable for cultivating vegetable beans on a green spatula and seeds. It has been established that, based on the weight of one bean, the coefficient of variation has a negative value. This indicates a low variability of the trait depending on the natural and climatic conditions, which allows selection of breeding valuable varieties for this parameter. As a result of the study, 6 genotypes of the crop, combining high productivity and environmental resistance, were selected. It was established that varieties Veronika and Darina can be referred to non-plastic samples. Samples could diversify breeding material of the crop and show the value according to specific features in edaphic-climatic conditions of Western Siberia.

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