According to the observation of wide and artificial Popover nudicaul, flowering rule, major factors influencing flowering, regulation method of flowering time and seed collection method were studied.
摘要生和人工种植的
罂粟调研观测,研究了
罂粟开花规律、影响开花的主要因
以及
罂粟的花期调控方法和采种方法。