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1982～1988年对春性宁麦3号等品种在不同播期条件下,进行了籽粒发育和灌浆程度的研究。结果表明:温度是影响小麦粒花期的主要因子。不同温度条件下,粒花期的递减速率并不一致,尤以温度在16～18℃的影响最为敏感。根据温度对小麦生殖生长期影响程度不同,分三个不同特点的时期,即低温长日期、高温短日期和可变生殖生长期,这三者都相互左右着成熟的早迟。
From 1982 to 1988, the varieties of spring sexual Ningmai 3 under different sowing dates, the grain development and filling degree of the study. The results showed that temperature was the main factor affecting wheat grain flowering. Under different temperature conditions, the rate of decline of grain flow is not consistent, especially in the temperature of 16 ~ 18 ℃ the most sensitive. According to the temperature of wheat reproductive growth period of different degrees, divided into three different characteristics of the period, that is, low-temperature long-term, short-term high temperature and variable reproductive growth phase, all three of each other around the maturity of the early.