Effect of organic amendments on morphological, physiological and root characteristics of red amaranth (Amaranthus gangeticus) grown on Cd contaminated saline soils

Authors

  • Mohammad Zaber Hossain Soil, Water and Environment Discipline, Khulna University, Khulna
  • Md Atikul Islam Environmental Science Discipline, Khulna University, Khulna 9208, Bangladesh
  • Md Azharul Islam Forestry and Wood Technology Discipline, Khulna University Khulna 9208, Bangladesh
  • Khandoker Qudrata Kibria Soil, Water and Environment Discipline, Khulna University Khulna 9208, Bangladesh

DOI:

https://doi.org/10.5564/bjsir.v59i3.73320

Keywords:

Cd, salinity, red amaranth, morphology, physiology, root

Abstract

A pot experiment was conducted to investigate the effects of six different types of organic amendments (OAs) applied to Cd contaminated saline soils with varying rates on red amaranth (Amaranthus gangeticus) growth. Two levels of salinity (4 dSm-1 and 8 dSm-1) were developed in the experimental soil that was previously contaminated with 5 mg kg-1 Cd. In slightly (4 dSm-1) saline soil, 1% vermicompost (VC) produced 18.77 times higher fresh weight as compared to the control while 32.37 times higher found with 2% cowdung (CD). VC produced the maximum fresh weight in moderately saline soil (8dSm-1). Other morphological traits were improved with the addition of OAs. VC increased the plant's relative water content, chlorophyll-a and chlorophyll-b. Root characteristics were improved irrespective of the OA rates and salinity. The efficiency of OAs followed the order VC=CD>compost>WT>SD=RH. Therefore, OA could be a promising way of alleviating the saline soil contaminated with Cd.

Bangladesh J. Sci. Ind. Res. 59(3), 149-158, 2024

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Published

2024-09-18

How to Cite

Hossain, M. Z., Islam, M. A., Islam , M. A., & Kibria, K. Q. (2024). Effect of organic amendments on morphological, physiological and root characteristics of red amaranth (Amaranthus gangeticus) grown on Cd contaminated saline soils. Bangladesh Journal of Scientific and Industrial Research, 59(3), 149–158. https://doi.org/10.5564/bjsir.v59i3.73320

Issue

Vol. 59 No. 3 (2024)

Section

Articles

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