African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6638

Full Length Research Paper

Effects of salt stress on pigment and total soluble protein contents of three different tomato cultivars

Zeynep Banu Doganlar1*, Koksal Demir2, Hakan Basak3 and Ismail Gul4
1Department of Biology, Science and Art Faculty, Agri Ibrahim Cecen University, 04100 Agri, Turkey. 2Department of Horticulture, Faculty of Agriculture, Ankara University, Ankara, Turkey. 3Department of Technical Programs, Kirsehir Vocational High School, Ahi Evran University, Kirsehir, Turkey. 4Department of Crop Science, Faculty of Agriculture, Dicle University, Diyarbakir, Turkey.
Email: [email protected], [email protected]

  •  Accepted: 02 July 2010
  •  Published: 31 August 2010

Abstract

In this study, the effects of salt stress on pigment and total soluble protein contents were investigated in different varieties of tomato (Lycopersicon esculentum Mill.). The seedlings of L. esculentum viz. Hazera, Dalli Tokat and Argy were treated with NaCl at 25, 50, 100, 125, 150 and 200 mM concentrations for 96 with 24 h interval. Pigment and total soluble protein contents of all tomato cultivars were significantly decreased by salt stress depending on time intervals and salt concentrations. Decreasing of pigment and total soluble protein contents were more evident in Hazera under short time salt exposure. Pigment content of Argy plants were less affected by salt concentration and exposure time. The results of this study suggest that the Argy cultivars are relatively better protected under salt stress conditions than Dalli tokat and Hazera cultivars.

 

Key words: Salt stress, Lycopersicon esculentum Mill., chlorophyll, carotenoid, total soluble protein.