杂交高粱制种的花期调节

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在多数情况下,杂交高粱的恢复系和不育系生育期不完全相同。因此,必须在播种及田间管理上适当调节,才能使花期相遇,并保证父本恢复系有足够的花粉,使母本不育系受粉结实良好,获得更高的产量。调节花期相遇的主要措施有: In most cases, the restorer lines and sterile lines of hybrid sorghum have different growth periods. Therefore, it is necessary to properly adjust the planting and field management to meet the flowering period, and to ensure that the male restorer has enough pollen, so that the male sterile line is well-endowed with powder and obtains higher yield. The main measures to meet the flowering period are:
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