ASSESSMENT OF ECOLOGICAL PLASTICITY AND STABILITY OF COLLECTION SAMPLES OF OATS BY WEIGHT OF 1000 GRAINS

Abstract

Solving the problem of steady manifestations useful features in crops includes a comprehensive assessment of the raw material within the parameters of adaptability and stability. This allows identifying the promising genotypes on different grounds. Oats, due to its high feeding and food qualities of the grain and the vegetative mass, is one of the major feeding grains and fodder crops inSiberia. It is important to identify the possible ways to improve the quality of the grain on the basis of determining the level of the adaptive capacity of plants on technological grounds, in particular by the weight of 1000 grains. The paper contains the results of 2012 – 2014 studies of the collection of oats samples in Narym Division of the Siberian Research Institute of Agriculture and Peat. To estimate the parameters of ecological plasticity, the researchers calculated the regression coefficient (bi), representing the average response to changing variety of environmental conditions, and the stability of trait variance (S2 ), indicating the reliability of the plasticity index as described by V. Z. Pakudin and L. M. Lopatina. According to the evaluation results, the following varieties with high stability and sufficient plasticity of the feature can be recommended for the purposes of breeding for coarse-samples: Lev, Parliament, SW Betania, R 8 N/9 3037-3072, Rozmar, Magne, Furlong, Pegas and Korifey.