Сільське господарство та лісівництво

Mazur Viktor – Candidate of Agricultural Sciences, Associate Professor of the Plant Growing, Selection and Bioenergetic Cultures Department, Rector of the Vinnytsia National Agrarian University, Vice-President of ESPC Ukrainian Scientific-Educational Consortium (21008, Vinnytsia, Soniachna St.3, е-mail: rector@vsau.org ).

Branitskyi Yurii Yuriyovych  – Candidate of Agricultural Sciences, Director of the Uladovo-Lyulinetsky Experimental Breeding Station of the Institute of Bioenergetic Cultures and Sugar Beet NAAS (Vinnytia region, Kalynivka, district, Uladivske, Samolevska Str., 15).

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 е-mail: rector@vsau.org).

The best duration of the interfacial flowering-ripening period and its stability was the Gigantella variety, which was characterized by a coefficient of plasticity less than 1. The highest coefficient of agronomic stability, which was 97.9%, and homeostatic - 15.9, and the stability variant was the lowest among varieties  which had been studied.  In addition, high stability was provided by the variety Local Green, which along with a long period of flowering-ripening provided a low coefficient of variation, which was 4.3%, and the coefficient of agronomic stability was 95.7%, and homeostatic was 7.7, but the variance  stability was higher than in the Gigantella variety. High indicators of stability were also provided by the Marmurov variety, which, along with a long period of flowering-ripening, was characterized by high stability of this indicator.  Thus, the coefficient of plasticity - 0.78, the coefficient of agronomic stability was 95.4%, and homeostatic - 6.8. The weight of 1000 grains was distinguished by the variety Gigantella, which had a mass of 1000 grains was 457.2 g, also a high weight of 1000 grains provided a variety of Marble - 428.3 g. In addition, this variety provided relatively high stability, the coefficient of variation was 7.6%, and the coefficient of agronomic stability - 92.4%.  Therefore, it is very difficult to combine the high mass of 1000 grains with the stability of this indicator. According to the coefficient of plasticity and the level of yield, the variety Gigantella stood out, which provided a yield of 2.64 t / ha, and the coefficient of plasticity was higher than one.  In addition, this variety provided a high coefficient of agronomic stability - 90.1% and a coefficient of variation - 9.9%, homeostatic was the highest among the varieties studied and amounted to 0.27.  Relatively high indicators of plasticity and stability provided Marmurov variety, which provided a yield of 2.28 t / ha, the coefficient of plasticity above one, as well as high stability, namely the coefficient of variation - 8.7% and the coefficient of agronomic stability 91.3% , and homeostatic - 0.26, the stability variant was as close as possible to zero.

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