The triploid had parental morphological characters, but nearly sterility, of which seeding rate was only 0.12 %.
三倍体具有双亲的形态特征，但高度不孕，结实率仅0.12%。
There are duplication treatment and morphological and anatomical observation of male sterility in this experiment.
本试验主要是对百日草进行加倍处理和雄性不育形态学解剖学结构研究。
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