高粱最佳收获期的研究

A STUDY ON THE OPTIMUM HARVEST TIME OF SORGHUM

摘要:

本试验研究表明:高粱开花授粉后5-25天收获的种子,无种用和食用价值。30-35天即乳熟末期收获的种子,具有较高的发芽能力,下代植株生育比较强壮,虽然产量与蜡熟末期收获的差异显著,但可做为低温冷寒年份生产用种提前收获的临界期。35—45天即蜡熟到蜡熟末期收获的种子,发芽势强,发芽率高,下代植株生育健壮,子粒饱满,产量高,是种用和食用的最佳收获期。

Abstract:

This study indicates that grains harvested 5~25 days after pollination can not be used as seed or food. Seeds harvested 30~35 days after pollination (late milk stage) have higher germinating ability and the plants developing from these seeds grow healthy and strong. Although the seed yield is significantly lower than that harvested at late waxy stage, it can be set up as the critical time of early harvesting for seed use in could years. Seeds harvested 35~45 days after pollination (late waxy stage) have the best germinating ability. The plants developing from these seeds grow vigorously, the grains are plump with high yield. So it is the optimum harvest time for seed and food uses.