大麦杂种后代的赤霉病抗性变异及抗性与棱性的关系

本文用５个二棱大麦“抗性强×抗性中”组合的Ｆ_６集团和４个“二棱抗性弱×六棱抗性中”组合的１１３个Ｆ_７系统以及５０对二棱和六棱近等基因系，进行了大麦赤霉病的抗性鉴定及遗传分析，结果表明：大麦赤霉病抗性受具有累加效应的微效多基因系统的控制，其广义遗传力为０．６０；二棱系统的抗性比六棱系统强，但控制抗性的基因和棱型基因之间连锁的可能性很小。

Gibberellic Disease Resistant Variation of Barley Hybrid Progeny and the Relation Between Resistance and Prismatic Property

Barley Gibberellic disease resistant identification and heredity analysis were studied with fifty two-lowed and six-lowed approxinative equal gene and so on.The result showed:barley Gibberellic disease resistance was controlled by minor genes system that had additive effect,the general heritability was 0. 60.The resistance of two-lowed system was stronger than that of six-lowed system,but the possibility of linkage between gene controlled resistance and prismatic gene was small.