IDENTIFICATION OF GRAIN PLANTS BY SELECTION INDICES
Mazur Olena – Candidate of Agricultural Sciences, Senior Lecturer of the Department of Plant Growing, Breeding and Bioenergetic Cultures, Vinnytsia National Agrarian University (21008, Vinnytsia, Soniachna St. 3).
The highest selection index obtained from the genotypes of soybeans: UD0202557 – 0,21, UD0202566 – 0,21, UD0202468 – 0,21, UD0202529 – 0,21. It should be noted that these cultivars are different types in the parameters of ecological plasticity and stability. For varancau stability, all cultivars that were studied are stable, varansi stability maximum was close to zero. According to the results of variance analysis it was found that the formation of a selection index (weight of seeds/number of beans per plant) were more influenced by the year conditions, however, have a significant influence of varietal characteristics and interaction of varieties with haratine conditions years of research.
The highest breeding index (seed weight per plant and number of seeds per plant) have provided varieties of soybean: UD0200773 – 0,14, UD0202201 – 0,14, UD0202566 – 0,14, UD0202468 – 0,14. Most of these genotypes belong to the highly plastic – UD0202201, UD0202566, UD0202468. Cultivars that have provided high breeding index (seed weight per plant and number of seeds per plant) was also characterized by high levels of agronomic stability of 99.9%. In addition, these cultivars had high homeostaticity and 1.4. At formation of indicators of the selection index (weight of seeds/number of seeds per plant) is more influenced by varietal characteristics, this is indicated by the results of mathematical processing of two-factor analysis of variance.The highest selection index weight of seeds/number of nodes on the plant were characterized by varieties of soybean : UD0202468 AT 0.43, UD0202557 AT 0.42, UD0202566 AT 0.42, UD0200773 – 0,41, UD0202201 – 0,41. These cultivars of soybean in response to the improvement of hydrothermal regime is treated as a highly plastic: UD0202201, UD0202557, as well as conservative.
The highest rates of this selection index (number of seeds/number of productive nodes) obtained from the genotypes of soybeans: UD0202557 WAS 3.18, UD0202566 – 3,14, UD0202468 – 3.21 m. These cultivars for reaction to improve the hydrothermal regime relate to highly plastic (b1>1). The formation of this selection index is significantly influenced by the conditions of the year.
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Scientific journal "AGRICULTURE AND FORESTRY" was founded in 1995; it was entitled as Bulletin of Vinnytsya State Agricultural Institute.
In 2010-2014 was enritled as Collection of scientific works of Vinnytsia National Agrarian University.
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