2007•Xi'nan nongye xuebaoRequires access

Effects of NaCl stress on plant growth and chlorophyll fluorescence characteristics in seedlings of two tomato cultivars.

Wu XueXia, Weimin Zhu, Yuelin Zhu, Jianlin Chen, Zhu LongYing

Abstract

The plant growth,chlorophyll content,chlorophyll fluorescence characteristics and osmotic adjust in tomato seedlings were studied under 0,50 and 100 mmol·L-1 NaCl stress.The results showed that the plant growth,chlorophyll content and potental activity of PSⅡ(Fv/Fo),photochemical efficiency of PSⅡ(Fv/Fm) were decreased,contents of proline and soluble sugar were increased.The plant growth of 'Hufan2560'was less affected than 'Hufan 2608' and the photosynthetic apparatus was less injured than '2608'.

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Key concepts: Proline, Sugar, Chlorophyll, Photosynthesis, Chlorophyll fluorescence, Plant growth, Cultivar, Chemistry