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*

doi:10.11707/j.1001-7488.20090426

Scientia Silvae Sinicae ›› 2009, Vol. 12 ›› Issue (4): 156-161.doi: 10.11707/j.1001-7488.20090426

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

Wang Xinjian^1.2,He Wei¹,Zhang Qiujuan²,Wang Nian¹,Zhu Yajun¹,Zhu Yanlin¹

(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

Abstract

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

Wang Xinjian.;He Wei;Zhang Qiujuan;Wang Nian;Zhu Yajun;Zhu Yanlin. Change of Nutrient Content and Oxidase Activities during Rooting of Catalpa bungei cl.‘Yu 1'[J]. Scientia Silvae Sinicae, 2009, 12(4): 156-161.

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

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