以辽豆 1 0号 (感病 )为母本 ,Frankling(抗病 )为父本进行有性杂交 ,经过 5年挖根鉴定和移栽选择 ,选育出在疫区比对照品种增产 2 5%以上、高抗 1号、3号生理小种品系各 5个。遗传分析表明 ,在辽豆 1 0号遗传背景下 ,北京小黑豆对 3号生理小种的抗性是由 1个显性基因和 2个隐性基因控制的。生理小种鉴定结果 ,辽宁有 1号和 3号两个生理小种 ,吉林有 1号、3号和 5号三个生理小种 Using Liao bean 10 (susceptible) as the female parent and Frankling (resistance) as the male parent for sexual hybridization, after 5 years of digging and identification of transplanting, % Or more, high anti-1, 3 physiological races each 5. Genetic analysis showed that in the genetic background of Liaodou10, resistance of Beijing black bean to No. 3 physiological race was controlled by one dominant gene and two recessive genes. Physiological race identification results, Liaoning No. 1 and No. 3 two physiological races, Jilin No. 1, No. 3 and No. 5 three physiological races