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干热河谷引种沙漠葳的抗旱生理特征

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

Issue:
2009年06期
Page:
83
Column:
研究论文
publishdate:
2009-11-30

Article Info:/Info

Title:
Physiological characteristics for drought resistant Chilopsis linearis, an introduction tree to dryhot valley
Author(s):
SUN Yongyu12 CHEN Yanbin3 ZHANG Chunhua1 LUO Changwei1 LI Kun12
1.Research Institute of Resource Insects, CAF, Kunming 650224, China; 2.SFA’s Yuanmou Degraded Ecosystem Location Research Station, Yuanmou 651302, China; 3.Panzhihua State Forest Farms, Panzhihua 617007, China
Keywords:
Chilopsis linearis introduction dryhot valley drought resisting physiological characteristics
Classification number :
S718
DOI:
10.3969/j.jssn.1000-2006.2009.06.019
Document Code:
A
Abstract:
Study on daily changes in physiological characteristics Chilopsis linearis, a introduction tree to dryhot valley. The testing index included water potential, detached leaves dehydration change, photosynthesis rate,stomata conductance, leaf transpiration rate and intercellular CO2 concentration. The results showed that Ch.linearis reduced water potential to availably absorb water from soil under drought stress , detached leaves dehydration was slow and water keeping ability was better. Ch.linearis photosynthesis daily progress was a double peak curve, it maintained low photosynthesis at 14:00 when the temperature, sunlight and soil water were all bad. The results of physiological characteristics and field growing showed that Ch.linearis adapted adverse weather of dryhot valley and grew normally.

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Last Update: 2009-11-30