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目前我省一年三熟的耕作制度中,以稻、稻、麦制占的比例较大。小麦冬种一般在晚稻收获后,11月上中旬或中下旬播种,1月上旬或中旬抽穗,3月下旬或4月上旬成熟。在灌浆后期至成熟前,常受阴雨连绵的影响,遭至减产或丰产不丰收。这是限制小麦高产、稳产的主要因素。因此在选育小麦高产早熟品种中,研究小麦早熟性对提高小麦产量与三熟制的发展、巩固具有重要意义。我们结合小麦育种工作,根据小麦育种的主攻目标之一——品种的生育期,着重调查研
At present, in our province three times a year farming system, with rice, rice, wheat accounted for a larger proportion. Winter wheat is generally harvested in late rice after sowing in mid-November or late November, heading in early January or mid-January, and mature in late March or early April. In the late filling to maturity, often affected by the continuous rain, was reduced or no harvest yield. This is the main factor limiting the high yield and stable yield of wheat. Therefore, it is of great significance to study the precocity of wheat in the breeding of high-yielding wheat varieties of early maturity to improve the wheat yield and the development and consolidation of the three-cropping system. We combine the wheat breeding work, according to one of the main objectives of wheat breeding - the growth of varieties, focusing on research