Growth and photosynthesis of<em> Castanopsis sclerophylla</em> seedlings with three light intensity treatments

FANG Jiang-bao; YIN Xiu-min; YU Shu-quan; JIANG Hong; LI Xiu-peng

doi:10.11833/j.issn.2095-0756.2010.04.010

Volume 27 Issue 4

Aug. 2010

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Article Navigation > Journal of Zhejiang A&F University > 2010 > 27(4): 538-544

FANG Jiang-bao, YIN Xiu-min, YU Shu-quan, JIANG Hong, LI Xiu-peng. Growth and photosynthesis of Castanopsis sclerophylla seedlings with three light intensity treatments[J]. Journal of Zhejiang A&F University, 2010, 27(4): 538-544. doi: 10.11833/j.issn.2095-0756.2010.04.010

Citation:

FANG Jiang-bao, YIN Xiu-min, YU Shu-quan, JIANG Hong, LI Xiu-peng. Growth and photosynthesis of Castanopsis sclerophylla seedlings with three light intensity treatments[J]. Journal of Zhejiang A&F University, 2010, 27(4): 538-544. doi: 10.11833/j.issn.2095-0756.2010.04.010

Growth and photosynthesis of Castanopsis sclerophylla seedlings with three light intensity treatments

doi: 10.11833/j.issn.2095-0756.2010.04.010

1.
School of Forestry and Biotechnology，Zhejiang A & F University，Lin’an 311300，Zhejiang，China;
2.
Forest Technology Extension Center of Ningbo City，Ningbo 315000，Zhejiang，China

More Information

Corresponding author: YU Shu-quan
Publish Date: 2010-08-20

Abstract

Castanopsis sclerophylla is one of the first growing species in secondary succession after destruction of subtropical evergreen broad-leaved forests. The objective is to study the effects of low light level on growth and photosynthesis of the seedlings. Photosynthesis and chlorophyll II fluorescence traits of C. sclerophylla seedlings were determined under shading （treatments of 100%，40%，and 15% of daylight） in May and September，2008. Results showed that in May and September，with decreasing light intensity，the maximum net photosynthetic rate，light compensation point，and light saturation point of C. sclerophylla leaves decreased. In September the 15% of daylight treatment was significantly lower （P＜0.05） than the control （100% of daylight）. Also，the SPADR value and the chlorophyll II fluorescence parameters （Fv /Fm，Fv /Fo） of leaves of significantly increased （P＜0.05） with a decrease of light. Thus，in a high light environment，photosynthesis of C. sclerophylla seedlings decreased，whereas the seedlings beneath the forest crown benefited.［Ch，4 fig. 2 tab. 23 ref.］
- forest biology,
- light intensity,
- Castanopsis sclerophylla,
- growth,
- photosynthetic characteristics

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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Growth and photosynthesis of Castanopsis sclerophylla seedlings with three light intensity treatments

1. School of Forestry and Biotechnology，Zhejiang A & F University，Lin’an 311300，Zhejiang，China;

2. Forest Technology Extension Center of Ningbo City，Ningbo 315000，Zhejiang，China

Corresponding author: YU Shu-quan

Publish Date: 2010-08-20

Key words:

Abstract: Castanopsis sclerophylla is one of the first growing species in secondary succession after destruction of subtropical evergreen broad-leaved forests. The objective is to study the effects of low light level on growth and photosynthesis of the seedlings. Photosynthesis and chlorophyll II fluorescence traits of C. sclerophylla seedlings were determined under shading （treatments of 100%，40%，and 15% of daylight） in May and September，2008. Results showed that in May and September，with decreasing light intensity，the maximum net photosynthetic rate，light compensation point，and light saturation point of C. sclerophylla leaves decreased. In September the 15% of daylight treatment was significantly lower （P＜0.05） than the control （100% of daylight）. Also，the SPADR value and the chlorophyll II fluorescence parameters （Fv /Fm，Fv /Fo） of leaves of significantly increased （P＜0.05） with a decrease of light. Thus，in a high light environment，photosynthesis of C. sclerophylla seedlings decreased，whereas the seedlings beneath the forest crown benefited.［Ch，4 fig. 2 tab. 23 ref.］

Growth and photosynthesis of Castanopsis sclerophylla seedlings with three light intensity treatments

doi: 10.11833/j.issn.2095-0756.2010.04.010

Abstract

References

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通讯作者: 陈斌, bchen63@163.com

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Growth and photosynthesis of Castanopsis sclerophylla seedlings with three light intensity treatments

doi: 10.11833/j.issn.2095-0756.2010.04.010

1. School of Forestry and Biotechnology，Zhejiang A & F University，Lin’an 311300，Zhejiang，China;

2. Forest Technology Extension Center of Ningbo City，Ningbo 315000，Zhejiang，China

Corresponding author: YU Shu-quan

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Growth and photosynthesis of Castanopsis sclerophylla seedlings with three light intensity treatments

doi: 10.11833/j.issn.2095-0756.2010.04.010

Abstract

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通讯作者: 陈斌, bchen63@163.com

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Growth and photosynthesis of Castanopsis sclerophylla seedlings with three light intensity treatments

doi: 10.11833/j.issn.2095-0756.2010.04.010

1. School of Forestry and Biotechnology，Zhejiang A & F University，Lin’an 311300，Zhejiang，China; 2. Forest Technology Extension Center of Ningbo City，Ningbo 315000，Zhejiang，China

Corresponding author: YU Shu-quan

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1. School of Forestry and Biotechnology，Zhejiang A & F University，Lin’an 311300，Zhejiang，China;

2. Forest Technology Extension Center of Ningbo City，Ningbo 315000，Zhejiang，China