大豆资源对SMV株系抗性的鉴定

AN EVALUATION OF RESISTANCE OF SOYBEAN GERMPLASM TO STRAINS OF SOYBEAN MOSAIC VIRUS

在南京田间对我国约六千份大豆资源进行大豆花叶病毒(SMV)抗性鉴定的结果,5.3％对本地区SMV毒源群体具有较佳抗性;黄淮、长江下游等地区资源的抗性优于其他地区。从国内及一些国外资源中入选的56份材料经实验室鉴定,28份具有株系专化抗性,包括7份抗S_(?)、S_c、S_(?)、S_h4个株系,3份抗3个株系,7份抗2个株系,11份抗1个株系。其中11份既具良好田间抗性又具对江苏主要株系S(?)及S_c的专化抗性,可作为本地区抗SMV育种的抗源。

The resistance of 5677-5882 entries of soybean germplasm from China was evaluated in Nanjing, Jiangsu. Among them, 5.3%, especially those from the Huang-Huai valley and lower Yangtze valley, showed to be resistant to the local SMV population in field conditions. The best 56 domestic and exotic entries were evaluated for their specific resistance to the local SMV strains, i. e. Sa, Sc, Sg, and Sh. Among them seven entries showed to b'e resistant to all four strains, three to three strains, seven to two strains, and eleven to one strain. The eleven entries which were of good field resistance and strain-specific resistance to Sa and Sc were recommended to be used in breeding program in Jiangsu.