论文部分内容阅读
选育抗病品种(系)是防治大豆胞囊线虫病最经济有效的方法,筛选抗源是抗病品种选育的基础。采用酸性品红染色法,在温室内对200份栽培大豆种质资源进行了大豆胞囊线虫病1号、3号,4号生理小种的抗性鉴定。筛选得到对1号生理小种表现高抗的品种资源2份,表现中抗的23份;对3号生理小种表现高抗的品种资源5份,表现中抗的26份;对4号生理小种表现高抗的品种资源3份,中抗的14份。其中兼抗1号、3号和4号生理小种的品种资源4份;兼抗1号和3号生理小种的品种资源5份;兼抗1号和4号生理小种的品种资源3份;兼抗3号和4号生理小种的品种资源3份。这些抗源的发现拓宽了抗性遗传基础,将推进大豆胞囊线虫抗病品种选育的进程。
Breeding resistant varieties (lines) is the most economical and effective way to control soybean cyst nematode disease. Screening of resistant sources is the basis for selection of resistant varieties. The resistance of Soybean cyst nematode No. 1, No. 3 and No. 4 was identified by acid magenta staining in 200 greenhouse cultivated soybean germplasm resources. Two varieties with high resistance to physiological race 1 were screened, 23 were medium resistant, 5 were high resistant to physiological race 3 and 26 were medium resistant. Species showed high resistance varieties of resources 3, 14 in the resistance. Among them, 4 varieties were also resistant to physiological race 1, 3 and 4; 5 were resistant to physiological race 1 and 3; 3 resistant to race 1 and 4 Copies; and anti-3 and 4 physiological races 3 varieties of resources. The discovery of these antigens has broadened the genetic basis of resistance and will promote the breeding of disease resistant varieties of soybean cyst nematode.