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
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
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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Photosynthetic physiological response of Bretschneidera sinensis seedlings to light intensity

doi: 10.11833/j.issn.2095-0756.2015.05.009
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)

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.]

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

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