CAJ | 학술논문

药用植物桔梗platycodon grandiflorus (Jacq.)A.DC.在自然授粉中结实率约为12%.其花柱的授粉率较高的，达77.5%，为结实率的6.46倍.花柱头上的平均花粉量为5-16个，但主要为来自自花的花粉，散粉期花粉活力较高.从不同处理结实率实验看，桔梗的有性繁殖主要依靠异花授粉，其自花授粉的结实率为1%.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.
약용식물길경platycodon grandiflorus (Jacq.)A.DC.재자연수분중결실솔약위12%.기화주적수분솔교고적，체77.5%，위결실솔적6.46배.화주두상적평균화분량위5-16개，단주요위래자자화적화분，산분기화분활력교고.종불동처리결실솔실험간，길경적유성번식주요의고이화수분，기자화수분적결실솔위1%.재영향결실솔적제다인소중，이화수분적효솔이급식물대이화수분적의뢰정도시중요인소.
The pollination biology of platycodon grandiflorus has been studied.Its seed set was 12% in natural comditions ,the pollination rates were high to 77.5%,6.46 gimes of its seed set.The mean number of pollen grains perstigma ranged from 5 to 16,most of the pollen grains were from self-pollinati on.The pollen viabiloty was strong in the emanationg-pollen period.The breeding system of platycodon trandiflorus was dominantly xenogamous,and autogamy was abo ut 1%.We consider that the lomitation and dependence of xenogamy are important factors among the factors influencing seed set.