我国小麦品种资源的早熟性在世界小麦中是比较突出的,尤其是生育后期短、籽粒的灌浆脱水过程较快的特点。早熟类型品种有利于抗灾稳产,我国华北地区,有些早熟类型品种抽穗至成熟仅一个月时间。在长江下游地区,复种指数较高,要求早熟品种更迫切。当地一些地方品种的早熟性遗传传递力很强,是我国早熟小麦育种的基础材料。 The early maturity of wheat germplasm resources in our country is more prominent in the world wheat, especially in the later growth period, the grain filling dehydration process is faster. Premature varieties are conducive to the stability of the disaster-resistant, China’s North China, some early maturing varieties heading to maturity of only one month’s time. In the lower reaches of the Yangtze River, the multiple cropping index is higher, requiring more precocious varieties. Some local varieties of early maturity genetic transmission is very strong, is China’s early maturing wheat breeding base material.