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干旱胁迫对6个树种叶片光合特性的影响(PDF)

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

Issue:
2012年01期
Page:
68-72
Column:
研究论文
publishdate:
2012-01-30

Article Info:/Info

Title:
Effect of drought stress on photosynthetic characteristic of six tree species
Author(s):
RUI Wenyi1 TIAN Yunlu2 ZHANG Jilin1* LI Shuqin1
1.Jiangsu Province Academy of Forestry, Nanjing 211153, China; 2. College of Agronomy, Nanjing Agricultural University, Nanjing 210095, China
Keywords:
drought stress photosynthesis stomatal limitation drought tolerant tree
Classification number :
Q945.78
DOI:
10.3969/j.jssn.1000-2006.2012.01.014
Document Code:
A
Abstract:
Six tree species(Ormosia hosiei Hemsl. et Wils, Photinia×fraseri ‘Red Robin’, Schima superba, Zelkova schneideriana, Salix×jiangsuensis cv. ‘J172’, Prunus cerasifera ‘Hollywood’) were conducted to compare the difference of photosynthetic characteristic and drought resistance. Results showed that there were great differences of photosynthetic characteristics of these six tree species during 10 d drought stress period. Photosynthesis of Prunus cerasifera ‘Hollywood’ and Salix jiangsuensis cv. ‘J172’ were much more sensitive to drought stress, of which there were significant decline of photosynthesis after 10 d drought stress due to stomatal limitation. In Zelkova schneideriana, stomatal limitation appeared after 4 d drought stress, however, the photosynthesis level return to normal level in the 10th day. In contrast, there was no stomatal limitation in Ormosia hosiei Hemsl. et Wils, Photinia fraseri ‘Red Robin’ and Schima superba during drought stress period. According to the Ci and Ca ratio of six tree species of normal irrigation during the 10 d period, the drought resistant ability arranged in descending order was Ormosia hosiei Hemsl. et Wils, Schima superba, Zelkova schneideriana, Photinia fraseri ‘Red Robin’, Salix jiangsuensis cv. ‘J172’, Prunus cerasifera ‘Hollywood’.

References

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Last Update: 2012-01-30