Use of introgressive hybridization in selection of spring bread wheat

Abstract

Evaluation of bread wheat varieties carrying the wheat-rye translocation has been performed for the natural resistance of plants to leaf rust and powdery mildew. It has been revealed that such bread wheat varieties as Omskaya 37 and Omskaya 38 show a high field resistance to leaf rust and, in a varying degree, to powdery mildew. The breeding material has been evaluated for the resistance to Ug99 in Kenya. The resistant lines have been isolated and recommended for further selection. Based on the introgressive material, a number of commercial varieties (Pamyati Maystrenko and Omskaya 41) with the complex resistance to leaf pathogens and high adaptability to unfavorable abiotic factors of the environment have been created. Varieties with alien genetic materials have been involved in the hybridization for development of new promising lines.