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园艺学报 ›› 2005, Vol. 32 ›› Issue (5): 926-929.

• 研究报告 • 上一篇    下一篇

湖南省浏阳市周洛村桂花峡野生桂花资源调查

郝日明1;臧德奎2;向其柏3   

  1. (1 南京农业大学园艺学院, 南京210095; 2 山东农业大学林学院, 泰安271018; 3 南京林业大学森林资源与环境学院, 南京210037)
  • 收稿日期:2004-12-21 修回日期:2005-08-08 出版日期:2005-10-25 发布日期:2005-10-25

Investigation on Natural Resources of Osmanthus fragrans Lour. at Zhouluocun in Hunan

Hao Riming1;Zang Dekui2;Xiang Qibai3   

  1. ( 1College of Horticulture, Nanjing AgriculturalUniversity, Nanjing 210095, China; 2College of Forestry, Shangdong Agricultural University, Tai'an 271018, China; 3College of Forest Resources and Environment, Nanjing Forestry University, Nanjing 210037, China)
  • Received:2004-12-21 Revised:2005-08-08 Online:2005-10-25 Published:2005-10-25

摘要: 通过对湖南省浏阳市周洛村桂花峡两次实地调查, 观察分析了桂花(Osmanthus fragrans
Lour. ) 群落所处的自然地理条件和其群落学特点, 在此基础上对桂花居群的生物学特征, 特别是花形态变异进行观察记录。结果显示桂花峡内的桂花花色以浅黄色和乳黄色为主, 偶有橙黄色和雪白色花个体; 花有两性花和雌蕊花柱退化的单性雄花两种类型, 居群内桂花个体间的花形态变异丰富, 具有天然更新能力。

关键词: 桂花, 资源, 居群, 野外调查

Abstract: The physiographical factors, the communityps components and morphological characteristics of sweet osmanthus (Osmanthus fragrans) community were studied by two surveys at Zhouluocun in Hunan. Based on the field investigation, the biological characteristics of sweet osmanthus population were analysed; interestingly, morphological variations of flowerwere found. The results show that the color of sweet osmanthus corolla ismainly either light yellow ormilk yellow, but occasionally aureate or snow2white individuals can be
found due to genetical variation in this Zhouluocun community. Flower types of sweet osmanthus are bisexual flower or unisexualmale flower due to the degeneration of p istil. Our data demonstrate that there are abundant morphological variations and successful regeneration in the natural population of sweet osmanthus.

Key words: Osmanthus fragrans Lour., Resource, Population, Investigation

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