The Influences of Shooting Duration and Climatic Factors on Plant Height Growth

doi:10.3724 SP.J.1143.2009.08233

Plant Diversity ›› 2009, Vol. 31 ›› Issue (02): 178-182.DOI: 10.3724 SP.J.1143.2009.08233

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The Influences of Shooting Duration and Climatic Factors on Plant Height Growth

SONG Fu-Qiang^{1 , 2 , 3} , ZHANG Yi-Ping¹, HU Jian-Xiang¹ , XU Zai-Fu¹ , XIAO Lai-Yun¹

1 Xishuangbanna Tropical Botanical Garden , Chinese Academy of Sciences, Kunming 650223 , China;
2 Yunnan Institute of Environmental Science, Kunming 650034 China ;
3 Graduate University of Chinese Academy of Sciences, Beijing 100049 , China

Received:2009-01-02 Online:2009-04-25 Published:2009-04-25

Abstract

Abstract: The increased plant productivity during the past decades is hypothesized that warmer temperature promoted plant growth through extending the length of growing season . However, there are no experimental results supporting it. In the present study we examined the relationship among plant height growth , shooting duration and climatic variables for 11 tropical
tree species. Our data showed that the longer shooting duration of tropical plants did not always promote plant height growth, and the climatic variables had stronger correlation with plant height growth than with shooting duration. In addition, the pathway analysis has been used to examine the contribution of shooting duration to the effect of climatic factors on plant height growth . The percentage of contribution of shooting duration was always less than 30% .We concluded that the increased growth period has limited influence on plant productivity for tropical trees .

Key words: Deviation from plant height

CLC Number:

Q 948

SONG Fu-Qiang^{, ,} , ZHANG Yi-Ping, HU Jian-Xiang , XU Zai-Fu , XIAO Lai-Yun. The Influences of Shooting Duration and Climatic Factors on Plant Height Growth[J]. Plant Diversity, 2009, 31(02): 178-182.

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The Influences of Shooting Duration and Climatic Factors on Plant Height Growth

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