Stiinta Agricola (Jul 2018)
Сбалансированность признаков продуктивности и качества зерна озимой пшеницы в зависимости от года выращивания и сроков посева
Abstract
Abstract. The research conducted during 2013-2016 years was aimed to study the level of formation of the main elements of wheat grain quality – protein and gluten, as well as the balance of the main crop yield components (“number of grains per ear” and “grain weight per ear”) and grain quality in terms of sowing date. The task of the experiment was to identify valuable genotypes with a high formation of quantitative traits and simultaneously containing a high level of protein and gluten independently of the sowing time and to subsequently involve them in the breeding process. In the process of analysis of experimental data a variational series was set up for each studied trait and the minimal and maximal values were involved in analysis. In addition, calculations were performed from average arithmetic values, limits of variation and genetic coefficient of variation. As a result of the studies we identified the breeding lines that annually maintained a sufficiently high level of grain quality (protein content – more than 14,0% and gluten content – more than 29,0%. ) and high values of the traits under study: “number of grains per ear” and “grain weight per ear”. We recommend to use such outstanding genotypes as a promising breeding material and as a source material for the creation of high-yielding and high-quality varieties of winter wheat.
