摘要
采用7个自交系进行完全双列杂交,通过自交与回交获得F2及回交世代。授粉后21d于田间对亲本、F1、F2及回交各世代用刀划法接种黄曲霉菌(AspergilusflavusLink),收获时进行发病情况调查分析。结果表明:不同亲本对黄曲霉菌的田间抗性有显著差异;玉米对黄曲霉菌的田间抗性受多基因控制,既有基因的加性效应,又有显性效应。还对抗性的配合力进行了分析。
7 lines of corn were crossed by means of complete diallel, selfing and backcrossing of F1 were done. The families of P1, P2, F1, F2 and BC were inoculated with Aspergillus flavus by knif after 21 days of pollination. After harvest, disease were investigated. The results show: there is significant difference of resistance to Aspergillus flavus in the field between the parents, also F1,F2 as well as BC families; The resistance is controlled by polygene, the additive and dominant effect of gene is found, the combinining ability of resistance was analysised.
出处
《江苏农学院学报》
CSCD
1997年第3期33-36,共4页
Jiangsu Agricultural Research
基金
农业部资助
江苏省教委自然科学基金
关键词
玉米
黄曲霉
抗病性
遗传
maize
Aspergillus flavus
resistance