Adaptive peculiarities of winter rye samples productivity and its elements
DOI:
https://doi.org/10.30835/2413-7510.2014.42071Keywords:
Winter rye, variety, hybrid, adaptability, stability, productivity, breeding valueAbstract
Purpose. Determination of differential assessment, adaptive capacity and stability of experimental rye F1 hybrids and their parental components.
Methods. Estimation of rye F1 hybrids and their parental components was performed by the following indices: productivity, productive tillering, plant height, main spike length, grain number per plant, grain weight and number from the main spike, and 1000-grain weight. The investigations were carried out in 2011-2013 on experimental field of the Plant Production Institute nd. a V.Ya. Yuryev in the Laboratory of Winter Rye Breeding and Genetics. Eight paternal components, two sterile parent lines, and 16 experimental hybrids were used in the TopCross system.
Results. The assessment of the adaptive capacity of the experimental hybrids and parental components of winter rye demonstrated a correlation of quantitative traits. Samples with high overall adaptive capacity, stability and breeding value were isolated. Basing on the study results a new winter rye F1 hybrid Saturn combining high overall adaptive capacity by all the studied traits with high winter hardiness and increased starch content in grain in its genotype was transferred to the state trials.
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