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本文选用赤星病（Ａｌｔｅｒｎａｒｉａａｌｔｅｒｎａｔａ）抗感程度不同的７个烟草品种，采用双亲交和双列交的交配设计，于１９９４～１９９６年间对其田间抗性的遗传进行了分析。结果表明，品种间抗病性差异显著，尽管环境因素对发病程度影响很大，各抗病品种的抗性基本稳定。双列分析和世代方差分析结果表明，抗病性呈部分显性，受多基因控制。基因表达的加性效应和显性效应同时存在，以加性为主。各抗性亲本的抗病基因的显隐性方向不同。遗传分析和配合力分析表明，狭义遗传率变幅为２１．２％～７８．１％，所有的抗性亲本均表现出较高的负效应一般配合力，具有较好的特殊配合力的组合有：宾哈特１０００－１×ＮＣ８２、宾哈特１０００－１×Ｇ－１４０、宾哈特１０００－１×金星６００７、净叶黄×ＮＣ８２、许金４号×ＮＣ８２、Ｇ－２８×Ｇ－１４０、Ｇ－２８×金星６００７。在进一步深入了解其抗性机制的基础上，这些材料都可以在赤星病抗病育种中加以利用。
In this study, seven tobacco cultivars with different degrees of resistance to Alternaria albino were selected and the genetic relationships of their resistance in the field were analyzed from 1994 to 1996 with mating design of parents and double crosses. The results showed that there was significant difference in disease resistance between cultivars. Although the environmental factors had a great impact on the disease incidence, the resistance of the resistant cultivars was basically stable. Double-row analysis and generational variance analysis showed that the disease resistance was partially dominant and controlled by multiple genes. The additive and dominant effects of gene expression exist at the same time, which is additive. The resistance genes of each resistant parent showed a significant recessive direction. Genetic analysis and combining ability analysis showed that the narrow genetic heritability ranged from 21.2% to 78.1%, and all the resistant parents showed higher negative general combining ability and better combining ability There are: Binhart 1000-1 × NC82, Binhart 1000-1 × G-140, Binhart 1000-1 × Venus 6007, Net Yehuang × NC82, Xu Jin 4 × NC82, G-28 × G -140, G-28 × Venus 6007. Based on further understanding of their resistance mechanisms, these materials can be used in the breeding of brown spot disease.