Results of evaluation of cotton samples (<i>Gossypium hirsutum L.</i>) under cultivation in the Astrakhan region

Abstract

Relevance. For the intensification of cotton growing, an important component is availability of varieties adapted to specific growing conditions, capable of forming a crop in extreme climatic conditions and with optimal economically valuable characteristics. Therefore, the agrobiological study, evaluation and selection in the natural and climatic conditions of the Astrakhan region of promising and high-yielding cotton samples of various origins in order to involve the selected samples in further breeding work is relevant. Methodology. The cotton collection of the All-Russian Institute of Plant Genetic Resources named after N. I. Vavilov served as the material for variety study. During the research work, the scheme of the selection process was built in accordance with the methodological instructions of N. P. Goncharov. The technique of laying and conducting field experience was according to the methodology of B. A. Dospekhov. The accounts, observations and measurements in the experiment were carried out in accordance with the G. G. Davidyan's methodological guidelines for the study of collection of spinning crops. The assessment of agroclimatic conditions for the growth and development of cotton was carried out by the calculation method. Interpretation of experimental data was carried out by common statistical methods, specifically, digital material was processed using variational statistics. Results. As a result of variety study of cotton, samples capable to adapt to the zone of growth, as well as productive and with optimal economically valuable characteristics were identified. These qualities make it possible to use the selected samples for further breeding.