Abstract:

Abstract: The plant growth, chlorophyll content and chlorophyll fluorescence characteristics in muskmelon seedlings were studied under 0, 50, 100, 150and 200 mmol?L-1 NaCl stress. The results showed that the plant growth, Fv/Fm, ETR,ФPSⅡand qP were increased under NaCl of 50mmol/L stress. The plant growth and chlorophyll fluorescence character istics of‘Chunli’was less affected than‘Alusichun ’. Pc mean of ‘Chunli’was more than ‘Alusichun ’, but Hd mean was reverse, Ex mean of two muskmelon cultivars was approaching under 0-200 mmol?L-1 NaCl stress . The changes of plant growth and chlorophyll fluorescence character istics were related to salt tolerance of two muskmelon cultivars.