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园艺学报 ›› 2001, Vol. 28 ›› Issue (1): 52-56.

• 研究论文 • 上一篇    下一篇

贵州亚热带地区野生秋海棠种质资源及其生境类型

代正福;周正邦
  

  1. (贵州省亚热带作物研究所, 贞丰562200)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2001-02-25 发布日期:2001-02-25

Germplasm Resource and Habitat Types of Wild Begonia in Subtropical Region of Guizhou

Dai Zhengfu and Zhou Zhengbang   

  1. (Guizhou Institute of Subtropical Crops , Zhenfeng 562200)
  • Received:1900-01-01 Revised:1900-01-01 Online:2001-02-25 Published:2001-02-25

摘要: 贵州亚热带地区有野生秋海棠19 种(含新记录种) , 其中1 种仅分布于黔北, 1种仅分布于黔东北, 4 种仅分布于黔东南, 8 种仅分布于黔南。其生境类型可分为灌丛湿地型、森林湿地型和阴湿岩石型, 以阴湿岩石型的种类较多。其按用途可分为观赏型和兼用型,以观赏型种类占多数。粗喙秋海棠、截裂秋海棠、美丽秋海棠、光叶秋海棠和小秋海棠5种处于濒危状态。

关键词: 亚热带, 野生秋海棠, 种质资源, 生境类型

Abstract: There are nineteen species of wild begonia including new recorded species in subtropicalregion of Guizhou. They are distributed in Qianbei , Qiandongbei , Qiandongnan and Qiannan respectively. Its habitat types are classified into shrub-wet land , forest-wet land and shade-wet rock type, of which , the most species belong to shade-wetrock type. Ornamental and dual-purpose type are classified according to its utilization , of which , the most species belong to ornamental type. B .crassirostris Irmsch. , B . truncatiloba Irmsch. , B . calophylla Irmsch. , B . summoglabra Yu , and B . parvula Levl . are in imminent danger.

Key words: Subtropical region, Wild begonia, Germplasm resource, Habitat type

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