@article{Базалій_Усик_2018, title={Adaptive capacity of winter wheat varieties and breeding material under the conditions of the South Steppe}, volume={14}, url={https://journal.sops.gov.ua/article/view/134770}, DOI={10.21498/2518-1017.14.2.2018.134770}, abstractNote={<p style="text-indent: 0.4cm; margin-bottom: 0cm; line-height: 0.39cm;" align="JUSTIFY"><span style="color: #000000;"><span><span style="font-size: small;"><span lang="en-US"><strong>Purpose.</strong></span></span></span></span><span style="color: #000000;"><span><span style="font-size: small;"><span lang="en-US"> To study the adaptive signs of varieties and breeding material of winter wheat developed at the Institute of Irrigated Agriculture of the National Academy of Sciences of Ukraine. </span></span></span></span></p><p style="text-indent: 0.4cm; margin-bottom: 0cm; line-height: 0.39cm;" align="JUSTIFY"><span style="color: #000000;"><span><span style="font-size: small;"><span lang="en-US"><strong>Methods.</strong></span></span></span></span><span style="color: #000000;"><span><span style="font-size: small;"><span lang="en-US"> Field, laboratory (determination of the water-holding capacity of leaves at major phenological stages), structural analysis, drought tolerance estimation (the method is based on the seed ability to germinate in sugar solution with high osmotic pressure), qua­lity </span></span></span></span><span style="color: #000000;"><span><span style="font-size: small;"><span lang="en-US">analy</span></span></span></span><span style="color: #000000;"><span><span style="font-size: small;"><span lang="en-US">sis, and statistical analysis. </span></span></span></span></p><p style="margin-bottom: 0cm; line-height: 0.39cm;" align="JUSTIFY"><span style="color: #000000;"><span><span style="font-size: small;"><span lang="en-US"><strong>Results.</strong></span></span></span></span><span style="color: #000000;"><span><span style="font-size: small;"><span lang="en-US"> Having a high-yiel­­</span>ding potential, modern varieties of winter wheat realize only 45–50% of their yield potential as their adaptability is still insufficient to ensure guaranteed stable yield. Therefore, to create highly adaptive varieties and to search me­<span lang="en-US">thods of evaluating breeding material in terms of adaptability remains a challenge for modern practical breeding. Among the studied in rainfed conditions winter wheat varieties of the Institute of Irrigated Agriculture which are adaptable in terms of plant height and yield, there is a genetically determined difference between drought-resistant genotypes, which makes it possible to select the best of them. These genotypes are 80–90 cm tall, they ensure a yield potential of 10.5 t/ha and the following quality indicators of grain: protein content 14%, sedimentation 55–75 ml, kernel hardness 95%, gluten content 32%, gluten quality I–II group </span></span></span></span></p><p style="margin-bottom: 0cm; line-height: 0.39cm;" align="JUSTIFY"><span style="color: #000000;"><span><span style="font-size: small;"><span lang="en-US"><strong>Conclusions.</strong></span></span></span></span><span style="color: #000000;"><span><span style="font-size: small;"><span lang="en-US"> The research on the drought and heat resistance of winter wheat carried out in the most important ontogenetic periods against two backgrounds – irrigated and rainfed – in conditions of climate change of the steppe zone served a basis for new breeding material and varie­ties. The Institute of Irrigated Agriculture’s varieties that have complex adaptive capacity have passed state variety examination and recognized as suitable for introduction in the farms in the South of Ukraine.</span></span></span></span></p>}, number={2}, journal={Plant varieties studying and protection}, author={Базалій, Г. Г. and Усик, Л. О.}, year={2018}, month={Jun.}, pages={183–189} }