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笔者根据植物雄性不育既受遗传影响，又受生态条件制约的事实，提出生态遗传雄性不育理论．该理论认为，植物雄性不育是不育基因在一定生态条件下的表达．所谓不育基因，可以是直接阻碍雄性发育的遗传因素，也可以是决定雄性发育需要某种生态条件的遗传特性．所谓生态条件，包括影响植物雄性生长发育的温度、光照、水分、营养、化学物质等物理、化学、生物因素．生态因素可分为自然生态因素和人工生态因素两类．植物品种间雄性对于不利生态条件的忍耐能力存在巨大差异，这就是两系杂交植物的基础．
Based on the fact that plant male sterility is not only affected by heredity but also by ecological conditions, the author puts forward the theory of ecological genetic male sterility. The theory holds that plant male sterility is the expression of sterile genes under certain ecological conditions. The so-called sterile genes, can be a direct impeding the genetic factors of male development, it can also determine the male development needs some ecological conditions of genetic characteristics. The so-called ecological conditions, including the impact of male plant growth and development of the temperature, light, moisture, nutrition, chemical substances and other physical, chemical and biological factors. Ecological factors can be divided into two types of natural ecological factors and artificial ecological factors. There is a big difference between the tolerance of male plants to unfavorable ecological conditions, which is the basis of two-line hybrid plants.