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大豆高抗灰斑病品种与抗性不同的品种杂交,F_1代各个组合的灰斑病粒率均表现高抗,其病粒率值的大小与另一亲本的抗性程度呈正相关,并相关极显著。中抗品种与感病品种杂交,或双亲皆为感病品种,F_1代病粒率多倾向双亲之间。5个正反交组合F_1代灰斑病粒率表现,经t值测定差异不显著。高抗品种与感病品种杂交的4个组合,F_2代灰斑病粒率表现出不同抗性的变异趋向。呈偏态分布。
Soybean highly resistant to Cercospora solani had cross resistance with different resistant varieties. The gray leaf spot percentage of F1 combinations showed high resistance, and the size of the disease rate was positively correlated with the resistance of the other parents significant. Medium resistant varieties and susceptible varieties of hybrids, or both parents are susceptible varieties, F_1 generation of particles rate more likely to parents. Five positive and negative cross combination F_1 gray leaf disease rate performance, the t value was not significantly different. Four combinations of high resistant varieties and susceptible varieties showed the trend of variation of different resistances on the F 2 generation of gray leaf spot. Is skewed distribution.