Зерновое хозяйство России (May 2018)
Мониторинг устойчивости сортов озимой пшеницы к возбудителю желтой ржавчины в условиях Нижнего Дона
Abstract
The monitoring of winter wheat varieties tolerance to yellow rust pathogens in the conditions of the Nizhniy Don The article presents the results of the immunity of the varieties and lines of winter wheat, developed in the FSBSE ARC ‘Donskoy’ and other breeding centers, to the North-Caucasus population of yellow rust in the conditions of artificial infection. In the 60s-80s of the last century the varieties ‘Krasnodarskay 6’, Khersonskaya 86’, ‘Lovrin 34’, ‘Sava’, ‘Drina’, ‘Don 85’, ‘Zernogradka 8’, ‘Don 93’, ‘Donshchina’ were used in the hybridization as the sources of tolerance to rust at that time. The varieties developed in the hybridization increased and improved the immunity of the plants to the pathogen. But over time the tolerant varieties have lost their resistance to the disease because of the new and more virulent biotypes of the pathogen, the climate change and the spread of the infectious diseases from the nearby areas. Thus the research center is constantly searching the tolerant varieties. Among the breeding samples developed by the local and other research centers there has been found material with high immunity to the pathogen. At present such new highly productive varieties tolerant to yellow rust as ‘Izyuminka’, ‘Lidiya’, ‘Nakhodka’, ‘Kapitan’, ‘Kipchak’, ‘Luchesar’, ‘Etyud’, ‘Shef’ and others are suggested to the production.
