Effects of Salt and Water Stress on Leaf Production, Sodium and Potassium Ion Accumulation in Soybean
Journal of Plant Sciences
Volume 2, Issue 5, October 2014, Pages: 209-214
Received: Oct. 7, 2014;
Accepted: Oct. 17, 2014;
Published: Oct. 30, 2014
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Md. Shawquat Ali Khan, Agronomy Division, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur, Bangladesh
Md. Abdullah-Al-Mamun, Department of Agriculture Extension, Rangpur, Bangladesh
Abullah- Al-Mahmud, Potato Breeder, International Potato Center (CIP), Bangladesh
Md. Mahfuz Bazzaz, Agronomy Division, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur, Bangladesh
Altaf Hossain, Tuber Crops Research Centre, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur, Bangladesh
Md. Sultan Alam, Tuber Crops Research Centre, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur, Bangladesh
Md. Shamimuzzaman, Department of Crop Sciences, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
Md. Abdul Karim, Department of Agronomy, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh
Leaf traits of three soybean genotypes viz., Galarsum, BD 2331 and BARI Soybean 6 were evaluated for their salt and water stress tolerance under the salinity levels of 0, 50 and 75 mM NaCl and water stress with 70% depletion of available soil water at the Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Salna, Gazipur, Bangladesh. The treatment were imposed in plants on 21 days after emergence and continued up to 56 days of age. The results of this study indicated that leaf traits like leaf number, leaf area and its dry weight of the soybean genotypes were sharply decreased when the plants were exposed to water stress, salt stress and, combined salt and water stress conditions. Least reduction in leaf traits was observed in Galarsum in all stress conditions. All leaf traits decreased more in 75 mM NaCl salinity combined with water stress treatment. The leaf dry weight was decreased to 39.72, 38.58 and 39.43% of the control in Galarsum, BD 2331 and BARI Soybean 6, respectively. The genotype Galarsum also accumulated lower amount of Na+ and higher amount of K+ in leaf tissues under salt stress and, combined salt and water stress environments as compared to others.
Md. Shawquat Ali Khan,
Md. Mahfuz Bazzaz,
Md. Sultan Alam,
Md. Abdul Karim,
Effects of Salt and Water Stress on Leaf Production, Sodium and Potassium Ion Accumulation in Soybean, Journal of Plant Sciences.
Vol. 2, No. 5,
2014, pp. 209-214.
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