研究玉米不同种质类群内和类群间选系对玉米粗缩病的抗性。结果表明,不同种质自选自交系对玉米粗缩病抗性有明显差异,初步认为塘四平头群和P群总体最好;Reid群较差;旅大红骨和Lancaster群抗感病表现相差不大,说明玉米种质(遗传基础)对粗缩病的抗性起重要作用。 This study was conducted to study the resistance of corn germplasm to different lines of maize in different germplasm groups. The results showed that there were significant differences in the susceptibility to maize rough set among different inbred lines. It was preliminarily believed that Tong Siping head group and P group were the best, Reid group was poor, and the resistance performance of Luda Hong Lan and Lancaster group was different Is not large, indicating that maize germplasm (genetic basis) plays an important role in the resistance of the disease.