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Pak. J. Bot., 42(5): 3103-3112, 2010. |
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Updated: 06-12-10 | ||||
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EFFECT OF SALT STRESS ON GROWTH ATTRIBUTES AND ENDOGENOUS GROWTH HORMONES OF SOYBEAN CULTIVAR HWANGKEUMKONG
MUHAMMAD HAMAYUN1, SUMERA AFZAL KHAN2, ABDUL LATIF KHAN3,5, ZABTA KHAN SHINWARI4, JAVID HUSSAIN5, EUN-YOUNG SOHN3, SANG-MO KANG3, YOON-HA KIM3, M. AJMAL KHAN6 AND IN-JUNG LEE3*
Abstract: The adverse effects of NaCl induced salt stress on growth attributes and endogenous levels of gibberellins (GA), abscisic acid (ABA), jasmonic acid (JA) and salicylic acid (SA) soybean cv. Hwangkeumkong was showed. Plant length, biomass, chlorophyll content, number of pods, 100 seed weight and yield significantly decreased in response 70 mM and 140 mM concentrations of NaCl. Under salt stress, the endogenous GA and free SA content decreased, while a significant increase in the endogenous ABA and JA contents were observed. The results showed that salinity stress drastically reduce growth and yield components of soybean by affecting endogenous growth hormones.
1Department of Botany, Abdul Wali Khan University Mardan Pakistan 2Center of Biotechnology and Microbiology, University of Peshawar, Pakistan 3School of Applied Biosciences, Kyungpook National University, Republic of Korea 4Department of Biotechnology, Quaid-i-Azam University, Pakistan 5Department of Chemistry, Kohat University of Science & Technology, Pakistan 6Department of Botany, University of Karachi, Pakistan *Author for correspondence E-mail: ijlee@knu.ac.kr |
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