甜菜采种株在温度、施肥及湿度适宜条件下,花期短而且花早,提前收获种子,条件不适合,则花期长达两个月。种子必须加工,才能获得优质种子。法国南部和意大利是良好采种区。大气湿度合适保证良好授粉。四倍体作为单粒种授粉株,大气湿度低于75％时花药不 Beet seeds planted in temperature, fertilization and humidity suitable conditions, short flowering and early flowers, early harvest of seeds, the conditions are not suitable, the flowering up to two months. Seeds must be processed in order to obtain high-quality seeds. Southern France and Italy are good growing areas. Atmospheric humidity suitable to ensure good pollination. Tetraploid pollination as a single species, when the atmospheric humidity is less than 75% anthers do not