08. Genetic weight control of 1000 grains at modern grades of spring barley

https://doi.org/10.31073/agrovisnyk201710-08
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Pages: 37-43.

Full article: 
Abstract
The purpose. To determine selection-genetic features of modern grades of spring barley by mass of 1000 grains in Central Forest-steppe of Ukraine and to secrete genetic sources of increased combining ability for use in hybridization. Methods. Modern grades of domestic and foreign selections are used in crossings by full double-allele scheme (7x7). Analysis of results and interpretation of genetic parameters are carried out according to practical standards (M.A. Fedin, etc., 1980). Results. High values are determined of quotients of heritability both in wide (H2=0,98 — 0,99) and narrow (h2=0,73 — 0,82) comprehension. That testifies to the big contribution of genetic features in phenotypical variability, and mainly additive monitoring of an attribute. Conclusions. Selection-genetic features are determined in the probed genotypes on an attribute «mass of 1000 grains». They allow to forecast efficiency of selections directed on augmentation of an attribute in the framed hybrid material. Efficient genetic sources for increase of weight of 1000 grains in combinational selection are grades Zhana, KWS Aliciana, Virazh.

Key words: genetics, grain, hybridization, crossing, combining ability, heritability.

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