Affiliation:
1. Agricultural Research Center «Donskoy»
Abstract
Relevance. In this regard, it is of great relevance to study influence of individual arid situations on the yield and its structure elements for winter bread wheat varieties; to identify more reliable selection criteria in breeding for drought resistance; to determine differences in the drought conditions’ response among genotypes with contrasting length of a vegetation period.Methods. The study was carried out in 2017–2021 on the fields of the research crop rotation of the FSBSI «ARC “Donskoy”», according to a green manure fallow due to the methods of SVT and a field trial. The objects of the research were 25 modern varieties and promising breeding lines of our own breeding.Results. There have been considered the types of droughts and their influence on the yield and its structural elements through the years of research in comparison with the control year 2017, which was favorable in precipitation and temperature conditions in all vegetation and development periods of winter wheat with HThC = 0.92–1.46. The yield decrease amounted to 39.4% in 2019 vs. 2017 and was due to a decrease in the number of sprouted plants and productive heads on 50.5% and 37.2%. In 2020, the productivity reduced on 10.7% due to head and plant productivity decrease on 31.8% and 12.1% and a grain size on 21.0%. In 2021, the yield decreased on 18.6% due to a decrease in plant density and productive head stand on 41.7% and 18.6%, and 1000-grain weight on 15.0%. Based on the correlation analysis, there have been identified the structural elements which could make the main contribution to productivity formation depending on the type of drought, namely plant density (r = 0.78), productive head (r = 0.70), grain size of a head and a plant (r = 0.60 and r = 0.79), plant height (r = 0.70).
Reference14 articles.
1. Alabushev A.V., Popov А.S., Ovsyannikova G.V., Sukharev А.А. The effect of sowing dates and forecrops on productivity and grain quality of the winter soft wheat variety Krasa Dona in the Southern part of the Rostov region. Grain Economy of Russia. 2020; (1): 4–10 (In Russian). https://doi.org/10.31367/2079-8725-2020-67-1-4-10
2. Grabovets A.I., Fomenko M.A. Winter wheat. Monograph. Rostov-on-Don: Yug. 2007; 600 (In Russian).
3. Maslova G.Ya., Abdryayev M.R., Sharapov I.I., Sharapova Ju.A. Correlation analysis of yield and elements of productivity of winter soft wheat varieties in the arid conditions of steppe zone of Middle Volga region. Izvestiya Samarskogo nauchnogo tsentra Rossiyskoy akademii nauk. 2018; 20(2-4): 680–682 (In Russian). https://www.elibrary.ru/zdftal
4. Krivosheev G.Ya., Ignatiev A.S. Correlation between quantitative traits that affect grain yield of maize hybrids. Grain Economy of Russia. 2021; (6): 27–32 (In Russian). https://doi.org/10.31367/2079-8725-2021-78-6-27-32
5. Vladimirova E.S. Correlation analysis of the basic material for spring soft wheat selection under conditions of Central Yakutia. Izvestiya Orenburgskogo gosudarstvennogo agrarnogo universiteta. 2020; (5): 31–37 (In Russian). https://www.elibrary.ru/drsyan
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献