Physiological Basis of Water Stress Tolerance in Soybean

Authors

  • KK Sarkar Department of Agronomy, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur-1706
  • MA Mannan Department of Agronomy, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur-1706
  • MM Haque Department of Agronomy, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur-1706
  • JU Ahmed Department of Crop Botany, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur-1706

DOI:

https://doi.org/10.3329/baj.v18i2.28908

Keywords:

Physiology, water stress, tolerance, soybean

Abstract

An experiment was conducted to study the effects of water stress on physiological parameters associated to drought tolerance in soybean at the Department of Agronomy, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh during January to April, 2015. Four soybean genotypes namely i) BU Soybean 1 ii) Binasoybean 1 iii) Galarsum and iv) BARI Soybean 5 were grown in two watering regimes viz. control (80% of the field capacity) and water stress (50% of the field capacity). Genotypic variability was found in water stress tolerance in soybean. Highest accumulation of leaf proline, sugar and water content and lower accumulation of malondialdehyde were found in Binasoybean 1 compared to other genotypes. Lowest yield reduction was found in Binasoybean 1. Binasoybean 1 showed relatively higher drought tolerance whereas BARI Soybean 5 was found susceptible to yield. It was found that higher water stress tolerance in Binasoybean 1 was associated with better water relations and higher accumulation of sugar and proline and lower accumulation of malondialdehyde content in leaf.

Bangladesh Agron. J. 2015, 18(2): 71-78

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Author Biography

KK Sarkar, Department of Agronomy, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur-1706



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Published

2016-07-25

How to Cite

Sarkar, K., Mannan, M., Haque, M., & Ahmed, J. (2016). Physiological Basis of Water Stress Tolerance in Soybean. Bangladesh Agronomy Journal, 18(2), 71–78. https://doi.org/10.3329/baj.v18i2.28908

Issue

Vol. 18 No. 2 (2015)

Section

Original Articles

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