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| 桂林唇柱苣苔和百寿唇柱苣苔的开花动态及花粉活力和柱头可授性的比较 |
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蒲高忠1, 潘玉梅1, 林春蕊1, 唐赛春1*, 陈秋霞1,2, 邹 蓉1
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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.广西师范大学 生命科学学院, 广西 桂林 541004
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| 摘要: |
| 对桂林唇柱苣苔的两个居群(YZ居群和DB居群)和百寿唇柱苣苔的开花动态、花粉活力和柱头可授性进行了比较研究。结果表明,桂林唇柱苣苔的两个居群花期、单花持续期存在明显差异,DB居群的花期较YZ居群晚,但花期长于后者。YZ居群的花期、单花持续期与百寿唇柱苣苔的花期、单花持续期相近。三者开花过程相似。花粉活性和柱头可授性达最大的时间、持续时间在桂林唇柱苣苔的两个居群以及百寿唇柱苣苔之间具有明显差异。 |
| 关键词: 桂林唇柱苣苔 百寿唇柱苣苔 开花动态 花粉活力 柱头可授性 |
| DOI： |
| 分类号:Q944.4 |
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| Comparison on floral dynamic, pollen viability and stigma receptivity between Chirita guilinensis and Chirita baishouensis |
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PU Gao-Zhong1, PAN Yu-Mei1, LIN Chun-Rui1,
TANG Sai-Chun1*, CHEN Qiu-Xia1,2, ZOU Rong1
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1.Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and the Chinese Academy of Sciences,
Guilin 541006, China;2.College of Life Sciences, Guangxi Normal University, Guilin 541004, China
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| Abstract: |
| Floral dynamic,pollen viability and stigma receptivity of Chirita guilinensis at two sites(YZ group and DB group)and C.baishouensis were compared in this study. The results showed that the flowering period of inflorescence and anthesis of a single flower were different between DB group and YZ group,but analogical between YZ group and C.baishouensis:Flowering of YZ group and C.baishouensis took place from late February to late March,but occurred from middle March to middle April in DB group; the anthesis of a single flower in DB group was longer than others. However,a similar floral dynamic happened in DB group,YZ group and C.baishouensis. The peak time and its duration of pollen variability and stigma receptivity were distinctly different among DB group,YZ group and C.baishouensis. |
| Key words: Chirita guilinensis C.baishouensis floral dynamic pollination viability stigma receptivity |
