【摘要】 以京核一号为材料在冬春麦区进行分期种植,观察研究了冬春麦区两地不同播期,小麦生育及器官建成的过程。结果表明:冬麦北移后表观苗期营养生长期短,株高降低主茎分化叶数少,分蘖少,分蘖弱。返青至拨节穗分化时间短,穗粒数受限制,但抽穗到成熟灌浆时间长,光照充足,温度适宜有利粒重提高。研究结果为冬麦北移制定合理栽培技术提供了理论依据。更多还原

【Abstract】 Variety Jinghe1 was planted both in current winter wheat area and previous spring wheat area with different sowing dates.The growth and development as well as the organs formation of plant were observed and analyzed in this research.Comparing with the experimental plots in the middle of shanxi,the result showed that in the plots of expanded northern area:the nutritional growth of wheat plant was shortened at the seeding stage,the leaf and ear number was fewer:and tillers were weak but the heading and maturing stage became longer.The results suggested that adequate sunlight and proper temperature were beneficial to increase the seed weight,and those could provide the theoretical and technical basis for production of winter wheat in the north of Shanxi.更多还原