西南林业大学学报2026，Vol.46Issue(3)：198-202,5.DOI:10.11929/j.swfu.202503009
中国西南山地特有植物黄杯杜鹃的传粉生态学研究
Pollination Ecology of Rhododendron wardii,a Species Native to the Southwest Mountains of China
摘要
Abstract
To understand the reproductive traits of Rhododendron wardii,a native shrub evaluated as least concern in the southwest mountains of China,pollination ecology of this species was investigated in a population on Baima Snow Mountain in northwest Yunnan in two years.The results showed that in florescences of R.wardii predominantly bear 5 to 7 flowers.The flowers exhibit characteristic herkogamy and produce nectar.Both autonomous selfing and apomixis did not occur in R.wardii,and partial self-compatibility was identified in this species.Manual outcrossing increased fruit set significantly,indicating pollination limitation of seed production in R.wardii.Emasculation reduced fruit set significantly,indicating the occurrence of pollinator medicated selfing within one flower.Bees,flies,butterflies and beetles were observed to visit R.wardii,but bees and flies were de-termined as the effective pollinators,although the total visiting frequencies of bees and flies were very low,which could contribute to the pollination limitation of seed production.The pollen limitation of seed production result-ing from low pollinator visiting frequency could be alleviated by artificial propagation to augment plant density,which may improve conditions for cross-pollination of R.wardii.关键词
黄杯杜鹃/花特征/雌雄异位/传粉限制/传粉昆虫/繁育系统Key words
Rhododendron wardii/floral trait/herkogamy/pollination limitation/pollinator/breeding system分类
农业科技引用本文复制引用
胡莉娟,刘妍弟,张婵..中国西南山地特有植物黄杯杜鹃的传粉生态学研究[J].西南林业大学学报,2026,46(3):198-202,5.基金项目
国家自然科学基金项目(32271604)资助. （32271604）
