Effects of NaCl stress on chlorophyll fluorescence parameters in Cinnamomum japonicum var. chenii
2008
Li Yingli | Wang Kuihong | Du Guojian | Xu Liqun | Yang Hua | Xiao Jijun
[Objective] Study on the changes of chlorophyll fluorescence parameters in Cinnamomum japonicum var. chenii under NaCl stress. [Method] The seedling growth increment, chlorophyll content and chlorophyll fluorescence parameters in leaves of 1-year old Cinnamomum japonicum var. chenii were investigated in field experiment. [Result] Under NaCl stress, seedling growth increment reduced and the chlorophyll content decreased to a stable value; changes of Fv/Fm and Fv/Fo assumed identical increasing trend and double peak type. With the aggravation of salt stress, most variations were observed in Fo, correlations among chlorophyll fluorescence parameters presented “rise-drop” trend (in the treatment of 7 g/L NaCl). [Conclusion] Cinnamomum japonicum var. chenii is endowed with strong salt resistance and wide adaptability.
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