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6个杂交鹅掌楸无性系的抗旱性比较(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2009年02期
Page:
39
Column:
研究论文
publishdate:
2009-03-30

Article Info:/Info

Title:
Comparison of drought resistance of six hybrid tulip clones
Author(s):
SUN Zhiyong1 WANG Wei2 JI Kongshu1*
1.Nanjing Forestry University, Key Laboratory of Forest Genetics and Biotechnology Ministry of Education, Nanjing 210037, China; 2.Baoding Vocational and Technical College, Baoding 071051, China
Keywords:
Liriodendron chinense×L.tulipifera clone drought resistant ability suberdinate function
Classification number :
S718
DOI:
10.3969/j.jssn.1000-2006.2009.02.010
Document Code:
A
Abstract:
Using experimental materials of oneyear old steckling from six hybrid tulip clones (NE04, NE22, NE23, NE25, NE38, NE78), the relative water content (RWC), permeability of plasma membrane, soluble protein and proline contents, activity of superoxide dismutase (SOD), and ascorbate peroxidase(APX) were analyzed under drought stress. The results showed that the permeability of plasma membrane, SOD activity, soluble protein and proline contents increased with the increase of drought stress level, by contrast, the RWC was found to decrease. The APX activity raised first, and declined continually later. Changes of these indexes varied in different clones. Drought resistance ability of each clone was evaluated by using the subordinate function. The drought resistance order of the tested materials was NE25, NE78, NE22, NE04, NE38, NE23.

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Last Update: 2009-03-30