在小麦育种工作中,为了加速世代繁育,缩短育种年代,育种单位经常应用异地夏繁、高山夏播方法,以解决春性和偏春性的育种材料之加代.对半冬性品种和杂种后代,近年来应用绿体春化后夏播加代,也已获得成功.采用这一方法时,需在小麦收获后,将萌动的种子或幼苗进行10-50天的低温春化处理,因此季节上十分紧迫. In the wheat breeding work, in order to speed up generations to breed and shorten breeding years, breeding units often apply the summer and summer off-season planting methods to solve the spring and spring spring breeding materials plus the generation of semi-winter varieties and hybrid offspring In recent years, it has also been successful to apply spring seeding and summer seeding plus generation, and when this method is used, germinating seeds or seedlings need to be vernalized at low temperature for 10-50 days after harvesting of wheat, Very urgent.