The pollen viability of Miscanthus sinensis was determined by in vitro pollen germination method.
采用离体花粉萌发法测定了芒豆的花粉活力。
The results as follows: In same habtat, the pollen viability of long-filament (male) E.
结果表明，刺五加长花丝植株的花粉活力比中花丝植株的高；
The viability came highest (56.4%) when pollen of the flowering day (20% pollen water content) was treated by step-cooling.
用分步冷冻法保存开花当天的花粉（20%的含水量）活力较高（56.4%）。
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