摘要
药用植物丹参 (SalviamiltiorrhizaBge .)在自然授粉中结实率约为 8% .其花柱的授粉率较高的 ,可达 76 % ,为结实率的 9 5倍 .柱头上的平均花粉量为 3～ 12个 ,但多数为自花花粉 ,散粉期花粉活力较高 .从不同处理下结实率实验看 ,丹参的有性繁殖主要依靠异花授粉 ,其自花授粉的结实率为0 6 % .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 .
The pollination biology of Salvia miltiorrhiza has been studied.Its seed set was 8% in natural conditions.the pollination rates were high to 76%,9\^5 times of its seed set.The mean number of pollen grains per stigma ranged from 3 to 12,most of the pollen grains were from self-pollination.The pollen viability was strong in the pollen period.The breeding system of Salvia miltiorrhiza was dominantly xenogamous,and autogamy was about 0\^6%.We consider that the limitation and dependence of xenogamy are important factors among the factors influencing seed set.
出处
《首都师范大学学报（自然科学版）》
2001年第2期58-61,共4页
Journal of Capital Normal University：Natural Science Edition
基金
国家自然科学基金资助项目! (基金编号 393915 0 0 )
