摘要
通过对72份玉米自交系和29份杂交组合进行玉米苗枯病的田间抗性鉴定,在72份自交系中筛选出3份高抗材料,15份抗病材料,24份中抗材料,10份感病材料,20份高感材料;在29份杂交组合中筛选出12份高抗材料,17份中抗材料.通过部分自交系和相应杂交组合的抗性遗传分析,结果表明,玉米杂交种比自交系具有较强的抗性,可以利用抗×抗或抗×感的杂交模式选育玉米苗枯病的抗病品种.
Experiments were conducted to identify the resistance of seventytwo maize inbred lines and twentynine hybrids to maize seedling blightThree high resistant lines, fifteen resistant lines, twentyfour medial resistant lines, ten infective lines and twenty high infective lines were found in the 72 inbred lines; twelve high resistant hybrids and seventeen resistant hybrids were found in the twentynine hybridsResurts of genetic analysis of resistance indicated that hybrids had stronger resistance than inbred linesIn resistant breeding to maize seedling blight,the model of resistant line×resistant line, or resistant line×infective line could be used
出处
《河南农业大学学报》
CAS
CSCD
2003年第1期10-12,共3页
Journal of Henan Agricultural University
关键词
玉米
苗枯病
抗源筛选
抗性遗传
maize
seedling blight
selection of resistant material
genetic analysis
