Correlation of grain protein content with utilitarian characters in breeding samples of winter wheat, created with the involvement of western european ecotypes
Abstract
Aim. To establish correlation-regression models of dependences of grain protein with the duration of the interphase period "flowering- grain maturity" and grain yield in elite numbers in breeding nurseries. Methods. Field research was carried out at the Institute of Irrigated Agriculture of the National Academy of Sciences in 2019-2021. The object of research was modern winter wheat varieties of the Institute; collection samples of the Western European ecotype that were introduced from France and hybrids created with their participation Research methods are field, laboratory, biochemical, selection-genetic, statistical. Results. The nature of the manifestation of the trait "grain protein" in selection numbers selected from hybrid populations with the participation of Western European ecotypes of soft winter wheat, correlation-regression models of the dependence of protein, grain yield and the duration of the "flowering-maturity" period were established. The duration of the period "flowering-ripeness" ranged from 45 to 52 days in the best numbers, and each original hybrid combination had its own optimum, which determined high yield and protein content of the grain. Conclusions. For each hybrid population created with the participation of parental components contrasting in duration of vegetation, it is necessary to develop a specific selection plan taking into account intra-population correlation-regression models of productivity, grain protein content and the duration of the "flowering-maturity" period.
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