Photosynthetic physiological response of <em>Bretschneidera sinensis</em> seedlings to light intensity

YE Feiying; CHEN Zilin; ZHENG Weicheng; LIU Julian; ZHOU Yuhong; ZHANG Jianyu; PAN Chengchun; JI Guohua

doi:10.11833/j.issn.2095-0756.2015.05.009

Volume 32 Issue 5

Sep. 2015

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YE Feiying, CHEN Zilin, ZHENG Weicheng, LIU Julian, ZHOU Yuhong, ZHANG Jianyu, PAN Chengchun, JI Guohua. Photosynthetic physiological response of Bretschneidera sinensis seedlings to light intensity[J]. Journal of Zhejiang A&F University, 2015, 32(5): 716-721. doi: 10.11833/j.issn.2095-0756.2015.05.009

Citation:

YE Feiying, CHEN Zilin, ZHENG Weicheng, LIU Julian, ZHOU Yuhong, ZHANG Jianyu, PAN Chengchun, JI Guohua. Photosynthetic physiological response of Bretschneidera sinensis seedlings to light intensity[J]. Journal of Zhejiang A&F University, 2015, 32(5): 716-721. doi: 10.11833/j.issn.2095-0756.2015.05.009

Photosynthetic physiological response of Bretschneidera sinensis seedlings to light intensity

doi: 10.11833/j.issn.2095-0756.2015.05.009

1.
Management Office, Jiulong Mountain National Nature Reserve, Suichang 323300, Zhejiang, China;
2.
Management Office, Dapanshan National Nature Reserve, Pan’an 322300, Zhejiang, China;
3.
Wenzhou Vocational College of Science and Technology, Wenzhou 325006, Zhejiang, China

Funds:

林业国家级自然保护区中央财政补助资金资助项目（浙财农字［2010］174号）;浙江省温州市科技计划项目（S20130003）

Received Date: 2014-09-14
Rev Recd Date: 2015-04-04
Publish Date: 2015-10-20

Abstract

Bretschneidera sinensis, an endemic species in China and one Chinas national first-level protected wild plants, is a particularly rare, severely endangered, and protected plant whose conservation for biodiversity is needed. This study determined the effect of different light intensities on the photosynthetic physiological response of B. sinensis and offered some suggestions for conservation. The photosynthetic characteristics of B. sinensis seedlings grown outdoors were studied with different light intensities （1 450, 550, and 200 molm－2s－1）. Results showed that daily changes in stomatal conductance, transpiration rate, and photosynthetic rate with 1 450 molm－2s－1 were higher than with 550 and 200 molm－2s－1. As light intensity decreased, the maximum photosynthetic rate （Pmax）, the light saturation point （LSP）, the carboxylation rate （CU）, and the maximum rate of carboxylation （Amax） all decreased. Therefore, light intensity should be considered carefully when biodiversity conservation of B. sinensis to be carried out. ［Ch, 4 fig. 2 tab. 20 ref.］
- plant physiology,
- Bretschneidera sinensis,
- seedling,
- light intensity,
- photosynthetic physiological

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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Photosynthetic physiological response of Bretschneidera sinensis seedlings to light intensity

1. Management Office, Jiulong Mountain National Nature Reserve, Suichang 323300, Zhejiang, China;

2. Management Office, Dapanshan National Nature Reserve, Pan’an 322300, Zhejiang, China;

3. Wenzhou Vocational College of Science and Technology, Wenzhou 325006, Zhejiang, China

Funds:

林业国家级自然保护区中央财政补助资金资助项目（浙财农字［2010］174号）;浙江省温州市科技计划项目（S20130003）

Received Date: 2014-09-14

Rev Recd Date: 2015-04-04

Publish Date: 2015-10-20

Key words:

Abstract: Bretschneidera sinensis, an endemic species in China and one Chinas national first-level protected wild plants, is a particularly rare, severely endangered, and protected plant whose conservation for biodiversity is needed. This study determined the effect of different light intensities on the photosynthetic physiological response of B. sinensis and offered some suggestions for conservation. The photosynthetic characteristics of B. sinensis seedlings grown outdoors were studied with different light intensities （1 450, 550, and 200 molm－2s－1）. Results showed that daily changes in stomatal conductance, transpiration rate, and photosynthetic rate with 1 450 molm－2s－1 were higher than with 550 and 200 molm－2s－1. As light intensity decreased, the maximum photosynthetic rate （Pmax）, the light saturation point （LSP）, the carboxylation rate （CU）, and the maximum rate of carboxylation （Amax） all decreased. Therefore, light intensity should be considered carefully when biodiversity conservation of B. sinensis to be carried out. ［Ch, 4 fig. 2 tab. 20 ref.］

Photosynthetic physiological response of Bretschneidera sinensis seedlings to light intensity

doi: 10.11833/j.issn.2095-0756.2015.05.009

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

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Proportional views

Photosynthetic physiological response of Bretschneidera sinensis seedlings to light intensity

doi: 10.11833/j.issn.2095-0756.2015.05.009

1. Management Office, Jiulong Mountain National Nature Reserve, Suichang 323300, Zhejiang, China;

2. Management Office, Dapanshan National Nature Reserve, Pan’an 322300, Zhejiang, China;

3. Wenzhou Vocational College of Science and Technology, Wenzhou 325006, Zhejiang, China

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Photosynthetic physiological response of Bretschneidera sinensis seedlings to light intensity

doi: 10.11833/j.issn.2095-0756.2015.05.009

Abstract

Relative Article

References

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通讯作者: 陈斌, bchen63@163.com

Related

Proportional views

Photosynthetic physiological response of Bretschneidera sinensis seedlings to light intensity

doi: 10.11833/j.issn.2095-0756.2015.05.009

1. Management Office, Jiulong Mountain National Nature Reserve, Suichang 323300, Zhejiang, China; 2. Management Office, Dapanshan National Nature Reserve, Pan’an 322300, Zhejiang, China; 3. Wenzhou Vocational College of Science and Technology, Wenzhou 325006, Zhejiang, China

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1. Management Office, Jiulong Mountain National Nature Reserve, Suichang 323300, Zhejiang, China;

2. Management Office, Dapanshan National Nature Reserve, Pan’an 322300, Zhejiang, China;

3. Wenzhou Vocational College of Science and Technology, Wenzhou 325006, Zhejiang, China