晋麦2148是我省小麦主要当家品种,产量较高,综合性状较好,在生产上发挥了重要作用。但年际间,晋麦2148粒重波动较大,高低可相三分之一甚至一半以上。究其原因,主要是我省春季多雨少晴,高温高湿的气候条件造成的,加之赤霉病、叶锈病等危害,影响籽粒正常灌浆成熟,粒大而不饱。为提高小麦粒重稳定性,促进高产稳产,我们于1981-1983年研究了晋麦2148的籽粒形成过程和灌浆特性,并初步分析气候因素的影响,现将研究结果报告如下。 Jinmai 2148 is the main species of wheat in our province, with higher yield and better overall characteristics, which play an important role in the production. However, during the year, the Jinmai 2148 grain weight fluctuated greatly, with one-third or even more than half of its height. The reason is mainly due to the weather conditions of rainy and less sunny, high temperature and high humidity in our province in spring, together with the hazards of scab and leaf rust, which will affect the normal grain filling and maturity. In order to improve the stability of grain weight and promote high and stable yield, we studied the grain formation process and grain filling characteristics of Jinmai 2148 from 1981 to 1983, and analyzed the influence of climatic factors. The results are reported as follows.