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林业科学 ›› 2009, Vol. 12 ›› Issue (4): 156-161.doi: 10.11707/j.1001-7488.20090426

• 论文 • 上一篇    下一篇

豫楸1号扦插生根过程中营养物质含量及氧化酶类活性的变化*

王新建1.2 何威1 张秋娟3 王念1 祝亚军1 朱延林1   

  1. (1. 河南省林业科学研究院 郑州450008; 2. 中南林业科技大学 长沙410004; 3. 河南省退耕还林管理中心 郑州450008)
  • 收稿日期:2008-12-23 修回日期:1900-01-01 出版日期:2009-04-25 发布日期:2009-04-25
  • 通讯作者: 朱延林

Change of Nutrient Content and Oxidase Activities during Rooting of Catalpa bungei cl.‘Yu 1'

Wang Xinjian1.2,He Wei1,Zhang Qiujuan2,Wang Nian1,Zhu Yajun1,Zhu Yanlin1   

  1. (1.Forsetry Academy of Henan Province Zhengzhou 450008; 2. Central South University of Forestry and Technology Changsha 410004;3. Henan Province Conversion of Farmland into Forest and Crude Forest Protection Project Management Center Zhengzhou 450008)
  • Received:2008-12-23 Revised:1900-01-01 Online:2009-04-25 Published:2009-04-25

关键词: 豫楸1号, 扦插, 生根机理, 营养物质, 氧化酶

Abstract:

The article investigated the changes of nutrients (total sugar, total nitrogen, total sugar/total N) and oxidases (IAAO, POD, PPO) of Catalpa bungeicl. ‘Yu1' in the cutting rooting process. The results showed that: C. bungei cl. Yu1' cutting rooting initiated from the lenticel .The soluble protein in the forcedsprouting cuttings decreased dramatically in the early stage, and then the decrease tended to slow. The total sugar content slowly increased throughout. The total nitrogen had a little change. The total sugar/total nitrogen ratio had same trend with total sugar. The IAAO, PPO activity of the forcedsprouting cuttings showed up down up down pattern in the rooting process, The POD activity rose in undulation pattern. The role of three oxidases was both independent with each other, and related to one another in the process of rooting by which affected rooting in integration.

Key words: Catalpa bungei cl.&lsquo, Yu 1', cutting, rooting mechanism, nutrients, oxidase