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引言不同生态类型的小麦品种在生长发育时,对外界环境条件的要求各不相同,因而在生长发育时各有其特点和规律。在不同时期进行播种,由于环境条件的差异,对各生态类型的小麦品种的生长发育均有不同程度的影响。研究在不同的播期条件下,各生态类型小麦品种的生育变化特点,以及各生育时期的变化对全生育期的影响,总结其规律,对于探索在本区内不同生态类型小麦品种最适生长期,不同生态型品种的布局区域,以及进行杂交育种的花期调节和丰富引种的理论,均具有极其重要的意义。
Introduction Wheat cultivars with different ecological types have different requirements on environmental conditions when they grow and develop, and thus have their own characteristics and laws in growth and development. Sowing at different times, due to the differences in environmental conditions, the growth and development of different ecological types of wheat varieties have varying degrees of impact. This paper studied the characteristics of reproductive development of different ecotype wheat cultivars at different sowing dates and the effects of different growth stages on the whole growth period and summarized their laws. It is of great significance to explore the optimal growth of different ecotype wheat cultivars Period, the layout area of different ecotypes, and the regulation of flowering and the introduction of abundant introduction for hybrid breeding are all of extremely important significance.