通过对黄淮流域主栽的 2 8个大豆品种 (系 )抗紫斑病的研究表明 ,有 46%的品种抗紫斑病 ,中等抗性品种占 2 9% ,中感品种占 1 1 % ,1 4%的品种感紫斑病。紫斑病对大豆百粒重和发芽率没有明显影响 Through the study on the anti-purple blotch of 28 soybean cultivars (lines) in Huang-Huai River Basin, 46% of the cultivars were resistant to purple-purple spot disease, 29% of medium-resistant varieties and 11% of moderate-susceptible ones 4% of the varieties of purple spot disease. Purple spot has no significant effect on the 100-grain weight and germination rate of soybean