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玉米是我省重要的粮食作物之一,每年玉米种子需求量极大,在我省各地市均有较大面积的制种田,因此了解玉米开花习性及花粉活力的变化规律均有一定的实际意义。尽管花粉活力的报导已有不少,但对田间条件下一天中不同时间玉米的花粉活力及不同品种(系)间的花粉活力是否存在差异研究较少,为此我们进行本项研究目的是为了明确一天中花粉活力的最佳时间,以便于指导育种工作。
Maize is one of the important grain crops in our province. The demand of maize seeds is very high every year. There is a large area of farming in all the provinces and cities in our province. Therefore, it is of practical significance to know the changing rules of flowering habits and pollen viability . Although there have been many reports of pollen viability, there have been few studies on the pollen viability of maize at different times of the day and the pollen viability of different varieties (lines). Therefore, we conducted this study in order to Define the best day for pollen vitality in the day to guide breeding efforts.