中国大豆抗孢囊线虫4号生理小种育种鉴定标准商榷  

DISCUSS ON STANDARD OF SOYBEAN BREEDING FOR DETERMINE RESISTANCE TO CYST NEMATODE RACE 4 IN CHINA

作　　者：任小俊[1] 马俊奎[1] 史宏[1] 王勇[1] 任冬莲[1] 赵晶芸[1] 刘学义[1] 

机构地区：[1]山西省农科院经济作物研究所,汾阳032200

出　　处：《大豆科学》2007年第4期473-478,共6页Soybean Science

基　　金：863课题(2006AA10Z1F4)支持

摘　　要：选择一组抗孢囊线虫4号生理小种育种亲本材料进行抗性鉴定,结果表明:品种间抗性存在极显著差异,且呈现连续性变化,根部孢囊附着量平均表现为0～145个。按照传统孢囊线虫鉴定分类标准,黑种皮的高抗抗源对SCN4号生理小种抗性十分稳定,灰布支黑豆和PI437654的孢囊附着量分别为2.67和0个;绝大部分黄种皮亲本材料抗性均表现为高度感病,只有1267和1259表现为中感。对于4号强毒生理小种的特殊性,实际中将无法选育到抗性品种以解决生产需要问题。利用品种间抗性存在的差异和连续性变化,并比较其它方法,建议抗孢囊线虫4号生理小种育种鉴定标准划分为5级,分别为免疫、高抗、抗、感和高感,其IP指数(%)以Lee为对照时分别为0、0.1～15、15.1～50、50.1～100和>100。黄种皮大豆品种晋豆19号对4号生理小种反应稳定,可作育种参考对照。A group of varieties used to breeding for resistant to cyst nematode race 4 were elected in the research. The results showed that there were variance between varieties obviously and continuously,and the average number of cyst nematode in the roots were 0- 145. According to classify standard of history deal with the examination, varieties with black seed coat which had been know resistant to cyst nematode race 4, such as Huibuzhihedou and PI437654 there were cyst nematode 2.67 and 0 in the roots respectively, retain resistance clearly. But most varieties with yellow seed coat represent high sensitive,only 1259 and 1267 were mid-resistant. In practice it was difficult to breed new varieties resistant to cyst nematode race 4 with yellow seed coat. Compared with other method, using the continuous variance of varieties resistant to cyst nematode race 4,it suggested new standard including five-level using in procedure of breeding, immune, high resistant, resistant,sensitive and high sensitive. Correspond to index of parasitism refer to variety Lee in percent were：0,0.1415,15.1450,50.14100 and） 100. The varietyJindou 19 with yellow seed coat and high yield response to cyst nematode race 4 steady,may use as reference control.

关 键 词：大豆 育种 孢囊线虫 4号生理小种 抗性标准 

分 类 号：S565.1[农业科学—作物学]