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在对宁夏灌区春小麦品种４次更换的历史背景及增产要素进行回顾分析的基础上，针对该灌区的气候特点及育种现状，提出了正确的育种目标及相应对策
On the basis of retrospective analysis of the historical background and yield-increasing factors of 4 spring wheat varieties in Ningxia irrigation area, aiming at the climatic characteristics and breeding status of this irrigation area, the correct breeding objectives and countermeasures