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林业科学 ›› 2005, Vol. 41 ›› Issue (5): 192-195.doi: 10.11707/j.1001-7488.20050535

• 研究简报 • 上一篇    下一篇

磷素环境与马褂木种源的生长和干物质积累

李建民1 王剑2 周志春2 饶龙兵2 金国庆2   

  1. 1.福建省林业科技推广总站,福州350003;2.中国林业科学研究院亚热带林业研究所,富阳311400
  • 收稿日期:2004-12-28 修回日期:1900-01-01 出版日期:2005-09-25 发布日期:2005-09-25

Growth and Dry Matter Accumulation of Liriodendron chinese Provenances Related to Phosphorus Environment

Li Jianmin1,Wang Jian2,Zhou Zhichun2,Rao Longbing2,Jin Guoqing2   

  1. 1.The Extending Center for Forestry Science and Technology of Fujian Province Fuzhou350003; 2.The Research Institute of Subtropical Forestry,CAF Fuyang 311400
  • Received:2004-12-28 Revised:1900-01-01 Online:2005-09-25 Published:2005-09-25

关键词: 马褂木, 种源, 磷素环境, 生长, 干物质积累

Abstract:

Soil culture experiment at two phosphorus levels was conducted to study the relationship between phosphorus environment and growth as well as dry mater accumulation of six classical Chinese tulip tree provenances from various areas.The result showed that phosphorus supply would accelerate the growth and dry matter accumulation of Liriodendron chinese ,which would adapt to phosphorus starvation by increasing root-shoot-ratio and the relative value of root parameters.The western provenances were observed to grow better at two phosphorus levels than the eastern ones. The response model of phosphorus was varied with the provenances tested.It was found that Tongdao of Hunan and Wuyishan of Fujian were less sensitivity to phosphorus with high phosphorus efficiency and productivity,while Shaoyang of Hunan and Suichang of Zhejiang were more sensitivity to phosphorus with low phosphorus efficiency. Well-developed lateral root system and more fibrous roots under low phosphorus was perhaps one of the important reasons for the provenances with high phosphorus efficiency.It was preliminarily determined that Liping of Guizhou was an excellent provenance with moderate sensitivity to phosphorus, while Tongdao of Hunan was superior provenance with high tolerability to low phosphorus stress or high phosphorus efficiency.

Key words: Liriodendron chinese, provenances, phosphorus environment, growth, dry matter accumulation