生态学杂志2024，Vol.43Issue(5)：1243-1248,6.DOI:10.13292/j.1000-4890.202405.020
濒危半红树植物莲叶桐的开花生物学特征及繁育系统
Flower phenology and breeding system of endangered semi-mangrove Hernandia nymphaeifolia
摘要
Abstract
Hernandia nymphaeifolia is an endangered semi-mangrove species.Floral characteristic is of great signifi-cance for the conservation of endangered species.There are two flowering types of H.nymphaeifolia:one type with exclusively female flowers open in the morning and male flowers open in the afternoon named as protogyny,and the other type with the reverse behavior named as protandry.The stigma receptivity and pollen viability had high activi-ties in both female and male functional stages.As for seed-setting rate,outcross pollination was the highest type(43.40％),followed by natural pollination(20.20％),geitonogamy(1.04％),and no apomixis,indicating that the breeding system of H.nymphaeifolia was self-incompatibility.In conclusion,the female and male functions of H.nymphaeifolia are normal,but the small population size leads to self-incompatibility,which is the main reason for the low seed-setting rate of H.nymphaeifolia.关键词
濒危半红树植物/莲叶桐/开花生物学/雌雄异型异熟/自交不亲和Key words
endangered semi-mangrove plant/Hernandia nymphaeifolia/flowering biology/heterodichogamy/self-incompatibility引用本文复制引用
张静文,陈慧,李燕华,王新茹,豆雪莉,张颖,关亚丽..濒危半红树植物莲叶桐的开花生物学特征及繁育系统[J].生态学杂志,2024,43(5):1243-1248,6.基金项目
海南省基础与应用基础研究计划(自然科学领域)高层次人才项目(2019RC181)和海南省高等学校科学研究项目(Hnky2019-27)资助. （自然科学领域）
