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穗粒数是小麦产量构成因素之一。在一定穗数的基础上,通过增加结实率,提高千粒重,是进一步提高我省灌区小麦现有产量水平的重要途径。穗粒数是在小麦穗的发育过程中形成的,与小花的分化,发育有直接关系。1982—1983两年试验,旨在了解并掌握我省西宁灌区春小麦穗的分化、发育规律,及其与粒数形成的关系,探讨通过栽培管理影响穗的分化进程,对增加粒数的可能性。
Spike grain number is one of the components of wheat yield. Based on a certain number of spikes, by increasing the seed setting rate and increasing 1000-grain weight, it is an important way to further improve the existing output level of wheat in irrigated area in our province. Spike grain number is formed in the process of wheat spike development, and floret differentiation, development has a direct relationship. 1982-1983 two years of experiment aimed at understanding and mastering the differentiation and development law of spring wheat and its relationship with the grain number formation in Xining Irrigation Area in our province and discussing the possibility of increasing the grain number by affecting the differentiation process of ear through cultivation and management .