| 黄花牛耳朵(苦苣苔科)的传粉生物学 |
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| 引用本文： | 唐赛春,蒲高忠,潘玉梅,邹蓉,韦春强.黄花牛耳朵(苦苣苔科)的传粉生物学[J].热带亚热带植物学报,2009,17(4):328-333. |
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| 作者姓名： | 唐赛春 蒲高忠 潘玉梅 邹蓉 韦春强 |
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| 作者单位： | 1. 广西壮族自治区中国科学院广西植物研究所,广西桂林,541006
2. 广西壮族自治区中国科学院广西植物研究所,广西桂林,541006;广西师范大学,广西桂林,541002 |
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| 基金项目： | 广西青年科学基釜项目 |
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| 摘 要： | 通过野外观察和繁育系统的实验,对黄花牛耳朵(Chirita lutea Yan Liu et Y.G.wei)的传粉生物学进行了研究.结果表明,黄花牛耳朵的花期从7月初至8月底,单株花期约35～47 d,单花化期约6～10 d,花的开放无固定的时间.在花期内花粉活性约80%,柱头可授性约75%～90%.花粉/胚珠比率(P/O)为1 215.73±266.13.柱头在花药散粉时已生长至花筒口部,明显高于花药,便于接受异花花粉.黄花牛耳朵不存在无融合生殖,高度白交亲和,但较难发生自动的白花授粉,产生种子主要依靠传粉媒介.自然授粉的结实率明显低于人工授粉的结实率,存在传粉限制,蜜蜂(Apidae sp.)、方头泥蜂(Crabro sp.)、无垫蜂(Ameglla sp.)是主要的传粉者.
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| 关 键 词： | 黄花牛耳朵 开花生物学 传粉 繁育系统 |
| 收稿时间： | 2008/4/28 0:00:00 |
| 修稿时间： | 2009/3/26 0:00:00 |
Pollination Biology of Chirita lutea Yan Liu et Y. G. Wei in China (Gesneriaceae) |
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| TANG Sai-chun,PU Gao-zhong,PAN Yu-mei,ZHOU Rong and WEI Chun-qiang.Pollination Biology of Chirita lutea Yan Liu et Y. G. Wei in China (Gesneriaceae)[J].Journal of Tropical and Subtropical Botany,2009,17(4):328-333. |
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| Authors: | TANG Sai-chun PU Gao-zhong PAN Yu-mei ZHOU Rong and WEI Chun-qiang |
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| Institution: | 1.Guangxi Institute of Botany;Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences;Guilin 541006;China;2.Guangxi Normal University;Guilin 541002;China |
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| Abstract: | Chirita lutea,which was published in 2004 by Liu and Wei,belonging to Gesneriaceae and only distributed in Guangxi Province of China,is a perennial herb and grows on limestone rocky hillsides or cliffs.The species can produce abundant flowers every year,but it currently presents the small populations.The pollination biology in C.lutea was studied.Flowering of C.lutea took place from early July to late August.The flowering period of individual lasted about 35~47 days,while anthesis of single flower lasted 6~... |
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| Keywords: | Chirita lutea Floral biology Pollination Breeding system |
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