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作物品种区域试验的主要目的是鉴定参试品种在不同地区的丰产性和适应性。近年来,同内外的许多育种学家不但希望选育的新品种具备高产、优质、多抗等优点,更希望能在不同的环境条件下普遍高产,以获得更大的经济效益。但是由于品种遗传型和环境交互作用的存在,使同一品种在不同的环境条件下表现不尽相同。一个稳定性好的品种,其遗传型与环境的交互作用必然小,在不同环境条件下产量表现相对稳定。而一个稳定性较差的品种,其遗
The main purpose of the regional trial of crop varieties is to identify the high yield and adaptability of the tested varieties in different regions. In recent years, many breeders both at home and abroad have not only hoped that the new breed of breeding will have the advantages of high yield, high quality and multiple resistance, but also hope to achieve high yield under different environmental conditions in order to obtain greater economic benefits. However, due to the existence of the genetic type of the breed and the interaction of the environment, the performance of the same breed under different environmental conditions is different. A good stability of the varieties, the interaction between the genetic type and the environment is bound to be small, under different environmental conditions, yield performance is relatively stable. And a less stable variety, its legacy