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  • Title: [Responses of rice leaf photosynthetic parameters to light intensity under NaCl stress].
    Author: Li H, Chen W, Li Q.
    Journal: Ying Yong Sheng Tai Xue Bao; 2006 Sep; 17(9):1588-92. PubMed ID: 17147162.
    Abstract:
    With rice varieties salt-tolerant Liaoyan 2 and salt-sensitive Akihikari as test materials, this paper determined their leaf net photosynthetic rate (Pn), transpiration rate (Tr), stomatal conductivity (Gs), and intercellular CO2 concentration (Ci) at different light intensities under long-term NaCl stress. The results showed that under NaCl stress, the Pn and Gs of the two varieties had an increase tendency with increasing light intensity, but in comparing with no NaCl stress, the Pn of Liaoyan 2 increased by 14.87%, while that of Akihikari decreased by 17.91%. The dynamic changes of Ci, Ls and Pn/Gs indicated that stomatal and non-stamatal factors played a positive role in the changes of Liaoyan 2 photosynthesis, while stomatal factor was the main reason inducing the changes of Akihikari photosynthesis.
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