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近几年来,长江中下游稻麦地区,由于三熟制面积的迅速扩大,茬口矛盾愈加突出,原有早熟小麦品种的成熟期,已不能适应各地的需要。在棉麦两熟地区,棉麦在熟期方面也一直存在着矛盾,为了进一步提高两熟的产量,除了棉花培育壮苗,早播促早发,以及实现棉田耕作机械化外,改棉麦套种为连作,选育早熟小麦品种,也是当前的迫切要求。因此,从有利于后作棉花、水稻高产,达到全年增产的目的出发,选育早熟、抗病、丰产的小麦新品种,具有重要的意义;而对小麦早熟特性的研究,则将从选育方法上给以理论上的指导。
In recent years, in the middle and lower reaches of the Yangtze River rice and wheat region, due to the rapid expansion of the three-acre system, the contradiction between stubble becomes more prominent. The maturing period of the original precocious wheat species can no longer meet the needs of different places. In cotton and wheat two ripe areas, cotton and wheat also have the contradiction in terms of maturity. In order to further improve the yield of two crops, in addition to cultivate strong seedling of cotton, early sowing and early sowing, as well as mechanization of cotton farming, cottonseed intercropping For continuous cropping, early maturing wheat varieties, is also an urgent requirement. Therefore, it is of great significance to start early breeding, disease-resistant and high-yielding wheat varieties in favor of post-production of cotton and rice with high yield and annual yield increase. However, the study on the characteristics of wheat precocious puberty will be from the election Educational methods to give a theoretical guidance.