一、引言春麦和冬麦在遗传性上的主要区别在于:春化阶段发育时对温度条件的要求。“冬性类型在春化阶段中需要较低的温度,春性类型则需要较高的温度”(农学生物学362页)。小麦品种在春化阶段对温度条件的界限划分,各研究者提出相近而不完全相同的见解,参 I. Introduction Spring wheat and winter wheat in the heredity of the main difference is: vernal development stage of the temperature requirements. “Winter types require lower temperatures during the vernalization stage and spring types require higher temperatures” (Agronomy 362). Wheat varieties in the vernalization stage of the temperature conditions of the division, the researchers put forward similar but not identical insights,