低温胁迫对欧美杂种山杨无性系的生理影响(PDF)
《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]
- Issue:
- 2013年06期
- Page:
- 161-164
- Column:
- 研究简报
- publishdate:
- 2013-11-27
Article Info:/Info
- Title:
- Physiological influence of low temperature stress on hybrid clones of Populus tremula×P.tremuloides
- Article ID:
- 1000-2006(2013)06-0161-04
- Author(s):
- YAN Shaopeng1; YANG Ruihua2; WANG Qiuyu1*
-
1.College of Life Science, Northeast Forestry University, Harbin 150040, China;
2.Heilongjiang Academy of Agricultural Science, Harbin 150069, China
- Classification number :
- S718
- DOI:
- 10.3969/j.issn.1000-2006.2013.06.032
- Document Code:
- A
- Abstract:
- One year old aspen cuttings, including three hybrid clones of Populus tremula × P. tremuloides and one clone of P. davidiana, were tested for analyzing the changes of the physiological and biochemical indexes related to cold resistance of the clones from 25 ℃ to 15 ℃,10 ℃,5 ℃ and 0 ℃ using climate chamber to simulate natural temperature reduction.The results showed that the endogenous ABA content, soluble protein and malondialdehyde content(MDA)of the clones increased along the temperature cooling down,the activities of SOD of the clones trended in up and down first, and then up again. The endogenous ABA, soluble protein and MDA content of clone Ptr3 and Ptr2 were relatively higher than that of Chinese aspen during the treating process. Therefore, the hybrid aspen adapted to plant in northeast part of China because of good adaptability to the condition of introduction area.
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