Physiological responses of mungbean (Vigna radiata) varieties to drought stress

  • A Nazran MS Student, Department of Crop Botany, Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur-1706
  • JU Ahmed Professor, Department of Crop Botany, BSMRAU, Gazipur-1706
  • AJMS Karim Professor, Department of Soil Science, BSMRAU, Gazipur-1706
  • TK Ghosh Associate Professor, Department of Crop Botany, BSMRAU, Gazipur-1706, Bangladesh.
Keywords: Mungbean, water potential, relative water content, proline and drought stress

Abstract

A pot experiment under polyshed condition was carried out at Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur during the period from 27 March 2017 to 5 May 2017 to study the physiological responses of mungbean varieties to drought stress under varying water regimes. The treatments consisted of four mungbean varieties, namely BARI Mung-5, BARI Mung-6, BUmug 2, BUmug 4 and three water regimes viz., 50 to 60% field capacity (FC), 70 to 80% FC and 90 to100% FC which were considered as severe drought stress, moderate drought stress and non-stress, respectively. The experiment was laid out in a completely randomized design with factorial arrangement having four replications. Results indicated that BARI Mung-6 maintained significantly the highest relative water content, leaf water potential, proline content, shoot dry matter and lower rate of electrolyte leakage at 50 to 60% FC (severe drought stress). BUmug 2 showed the lowest performance in terms of all the water relation and physiological characters which indicates its higher sensitivity to severe drought stress. Variety BARI Mung-6 was relatively water stress tolerant than others in respect of physiological adaptations. So, BARI Mung-6 can be a potential variety for cultivation under drought condition where irrigation facility is limited.

Bangladesh J. Agril. Res. 44(1): 1-11, March 2019

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Abstract
544
PDF
250
Published
2019-04-07
How to Cite
Nazran, A., Ahmed, J., Karim, A., & Ghosh, T. (2019). Physiological responses of mungbean (Vigna radiata) varieties to drought stress. Bangladesh Journal of Agricultural Research, 44(1), 1-11. https://doi.org/10.3329/bjar.v44i1.40899
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Articles