Chitosan ameliorates growth and biochemical attributes in mungbean varieties under saline condition

Ahmed Khairul Hasan,Mohammad Anowar Hossain,Muhammad Javidul Haque Bhuiyan,Shayla Sharmin,Shuma Rani Ray

doi:10.3329/ralf.v3i1.27857

Ahmed Khairul Hasan, Mohammad Anowar Hossain + Show 3 more

Open Access

https://doi.org/10.3329/ralf.v3i1.27857

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Abstract

The pot experiment was conducted to evaluate the effect of chitosan on the morphological, biochemical parameters of four Mungbean varieties (BARI Mung3, BARI Mung6, BINA Mung5 and BINA Mung8) under salinity condition. Each pot having eight kilograms of soil was prepared to grow three plants of each variety. The experiment comprised with four different conditions in triplicates viz. control, saline (40 mM NaCl, 25 days after sowing- DAS), saline plus chitosan (25 ppm chitosan, 30DAS on saline condition) and chitosan (25 ppm chitosan on control condition). Seed collections followed by data analysis were done. Proline content was measured accordingly. Salinity caused reduction in all growth and yield contributing attributes compared to control groups of all four varieties. Proline accumulation was enhanced due to saline condition, and this accumulation was not enhanced by application of chitosan. However, application of chitosan played as an outstanding stimulating role in all morphological parameters like number of flowers plant-1, number of pods plant-1, number of seeds pod-1 and thousand seeds weight under salinity stress.Res. Agric., Livest. Fish.3(1): 45-51, April 2016

Highlights

Abiotic stresses severely reduce the productivity of almost all pulse crops including mungbean (Gao et al, 2007)
Materials Seeds of four Mungbean varieties were collected from Bangladesh Agricultural Research Institute (BARI), Gazipur and Bangladesh Institute of Nuclear Agriculture (BINA), BAU, Mymensingh
The stimulating effect (1% to 5% level) on thousand seed weight in chitosan induced mungbean varieties was found at saline condition in this study

Summary

Introduction

Abiotic stresses severely reduce the productivity of almost all pulse crops including mungbean (Gao et al, 2007). Compare to the most of the known pulse crops, mungbean is relatively more sensitive to salt stress. Since the adverse effect of salinity causes remarkable loss in yield and quality of crops different techniques like salt resistant variety development, modulation of intercultural operation or application of some bio-stimulators is continuously being practiced by researchers. Application of chitosan (as a biostimulator) could be one of the approaches to decrease the adverse effect of abiotic stress on crop plants. Chitosan modulates the plant response to several abiotic stresses including salt and water stresses (Ruan and Xue 2002, Dzung et al 2011). Chitosan enhanced plant growth and development have been reported by some authors (Chibu et al 2002, Mondal et al 2012)

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