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前言遗传型与环境互作一直是植物育种家在育种实践中最感棘手的问题,而品种稳定性正是遗传型与环境互作的结果。目前,京郊大豆生产技术水平较低,种植方式多为间、混、套,环境变异较大,因此选择出具有高度稳定性的大豆品种就更有实际意义了。这样,使鉴定出的品种具有优良的缓冲性和一般的适应性,也就是品种的稳定性好,在不同的栽培条件下变
Preface Genetic type and environment interaction has always been the most difficult problem for plant breeders in breeding practice. The stability of varieties is the result of interaction between genetic type and environment. At present, the production technology of soybeans in the suburbs of Beijing is relatively low, and the cultivation methods are mostly intercropping, mixing and sheathing, and the environmental variation is relatively large. Therefore, it is more practical to choose a soybean that has a high degree of stability. In this way, the identified varieties have excellent cushioning and general adaptability, that is, the stability of the varieties is good, and under different cultivation conditions