摘要
药用植物党参Codonopsispilosula (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 。
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.
出处
《曲阜师范大学学报（自然科学版）》
CAS
2001年第4期73-75,共3页
Journal of Qufu Normal University(Natural Science)
基金
国家自然科学基金资助 (3 93 915 0 0 )
