| 药用植物党参传粉效率和结实率的研究 |
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| 引用本文： | 李今.药用植物党参传粉效率和结实率的研究[J].曲阜师范大学学报,2001,27(4):73-75. |
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| 作者姓名： | 李今 |
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| 作者单位： | 湖北师范学院生物系 435002，湖北省黄石市 |
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| 基金项目： | 国家自然科学基金资助 (3 93 915 0 0 ) |
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| 摘 要： | 药用植物党参Ｃodonopsis pilosula(Franch.)Nannf.在自然授粉中结实率约为６％，其花柱的授粉率较高的，达７５％，为结实率的１２．５倍，柱头上的平均花粉量为７－１９个，但多数为来自自花的花粉，散粉期花粉活力较高，从不同处理下结实率实验看，党参的有性繁殖主要依靠异花授粉，其自身花授粉的结实率为１．０％，作者认为，在影响结实率的诸多因素中，异花授粉的效率以及植物对异花授粉的依赖程度是重要因素。
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| 关 键 词： | 党参 传粉效率 结实率 药用植物 有性繁殖 异花授粉 种群生物学 |
| 文章编号： | 10015337(2001)04007303 |
| 修稿时间： | 2001年3月1日 |
POLLINATION RATES AND SEED SET IN Codonopsis pilosula (Franch.) Nannf. |
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| LI Jin.POLLINATION RATES AND SEED SET IN Codonopsis pilosula (Franch.) Nannf.[J].Journal of Qufu Normal University(Natural Science),2001,27(4):73-75. |
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| Authors: | LI Jin |
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| Abstract: | The pollination biology of Codonopsis pilosula has been studied. Its seed set was 6% in natural conditions, the pollination rates were high to 75%,12.5 times of its seed set. The mean number of pollen grains per stigma ranged from 7 to 19, most of the pollen grains were from self-pollination. The pollen viability was strong in the pollen period. The breeding system of Codonopsis pilosula was dominantly xenogamous, and autogamy was about 1.0%. The authors consider that the limitation and dependence of xenogamy are important factors among the factors influencing seed set. |
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| Keywords: | Codonopsis pilosula (Franch ) Nannf pollination rates seed set |
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