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| 多花野牡丹传粉生物学观察 | |
| 引用本文： | 彭东辉,张启翔,黄启堂,许贤书,谢祥财.多花野牡丹传粉生物学观察[J].福建林学院学报,2008,28(2):115-120. |
| 作者姓名： | 彭东辉 张启翔 黄启堂 许贤书 谢祥财 |
| 作者单位： | 1. 北京林业大学园林学院,北京,100083;福建农林大学园林学院,福建,福州,350002 2. 北京林业大学园林学院,北京,100083 3. 福建农林大学园林学院,福建,福州,350002 |
| 基金项目： | 福建省高等学校科技基金资助项目(JA07071). |
| 摘 要： | 对福州地区3个天然居群多花野牡丹传粉生物学的观察结果显示:多花野牡丹5:30-7:00开始开花,7:40-8:10完全开放,16:30-17:30花朵闭合,单花开放时间为12 h,群体花期(53±5)d,无花蜜分泌。访花昆虫主要是蜂类、食蚜蝇类和丽金龟类,传粉昆虫主要是木蜂、蜜蜂等,其中木蜂传粉活动最为活跃,为最有效传粉昆虫。完全套袋、去雄和去雌(去柱头)处理的均不结实,表明多花野牡丹不存在无融合生殖、主动自花授粉和滞后自交的生殖保障现象。而人工自交和异交均具有较高的坐果率,表明多花野牡丹为自交亲和的异交种,需要昆虫传粉。多花野牡丹繁育系统是兼性自交。 |
| 关 键 词： | 多花野牡丹 传粉生物学 繁育系统 花粉胚珠比率 |
| 文章编号： | 1001-389X(2008)02-0115-06 |
| 修稿时间： | 2008年1月28日 |
Study on pollination biology of Melastoma affine |
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| PENG Dong-hui,ZHANG Qi-xiang,HUANG Qi-tang,XU Xian-shu,XIE Xiang-cai.Study on pollination biology of Melastoma affine[J].Journal of Fujian College of Forestry,2008,28(2):115-120. | |
| Authors: | PENG Dong-hui ZHANG Qi-xiang HUANG Qi-tang XU Xian-shu XIE Xiang-cai |
| Abstract: | The pollination biology of Melastoma affine Linn.was studied in three populations in Fuzhou,Fujian Province,southeastern China.The flowers of M.affine came into blossom at 5:30-7:00,into ful1-blossom at 7:40-8:10 and into petal-shut at 16:30-17:30.The florescence of individual flower and population flowers were 12 h and(53±5) days respectively.There was no nectar in the flowers.The species of flower-visiting insects were Apoidea,Syrphidae,Tutelidae,etc.The effective pollinators were carpenter bees,honeybees,etc.A carpenter bee was the most active insect among them.The field experiments indicated that the fruit sets were significantly high in both artificially out-crossed and self-pollinated flowers,while no fruit set was observed in bagged emasculated flowers and the unpollinated bagged flowers.These facts indicated that there was no self-compatible,no self-pollination and agamospermy in this species.Pollinated-insects were necessary for it.The breeding system of M.affine was a typical facultative inbred type. |
| Keywords: | Melastoma affine pollination biology breeding system pollen/ovule ratio(P/O) |
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