摘要
采用人工保存的花粉进行自、异花授粉,调查和测定结实粒数和种子千粒质量,探讨提高桔梗自花授粉结实率的方法。结果表明:自然干燥1 d后密封、4℃冰箱中保存5 d的花粉53.2%仍有活力;用人工保存的花粉进行自花授粉,结实率和种子千粒质量可以达到异花授粉及天然授粉的水平。
The method of improving self-pollinated bearing rate of Platycodon grandiflorum （Jacp.）A. DC was researched in this paper by measuring the vitality of artificial preserving pollen, doing self-pollination and cross pollination with artificial preserving pollen, measuring the number of bearing grains and mass of one thousand grains. The result showed that the 53.2% pollen which was sealed after one days desiccation naturally and then reserved in the refrigerator under 4℃ for 5 days still had vitality ; Self-pollination using artificial preserving pollen could reach the level of the cross pollination and natural pollination in the bearing rate and the mass of one thousand grains.
出处
《北方园艺》
CAS
北大核心
2007年第9期49-51,共3页
Northern Horticulture
关键词
桔梗
花粉活力
自花授粉
结实率
Platycodon grandiflorum （Jacp.） A. DC
Pollen vitality
Self-pollination
Bearing rate
