EFFECT OF DIFFERENT ARSENIC CONCENTRATIONS ON SOME PHYSIOLOGICAL PARAMETERS OF RICE (Oryza sativa L.)

BEGUM MINSURA¹*, S. MONDAL^2
1Department of Plant Physiology, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia, 741252, West Bengal, India
²Department of Plant Physiology, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia, 741252, West Bengal, India
* Corresponding Author : minsura_08@rediffmail.com

Received : 20-09-2018     Accepted : 26-09-2018     Published : 30-09-2018
Volume : 10     Issue : 18       Pages : 7263 - 7265
Int J Agr Sci 10.18 (2018):7263-7265

Keywords : Arsenic, Catalase, Chlorophyll pigment, Germination, Lipid peroxidation, Net photosynthesis, Relative water content
Conflict of Interest : None declared
Acknowledgements/Funding : Author thankful to Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia, 741252, West Bengal, India
Author Contribution : All author equally contributed

The objective of the study was to investigate the effect of different arsenic concentrations on some physiological parameters of rice (Oryza sativa L.). Arsenic was applied as arsenate and arsenite at concentrations of 5, 10, 15 and 20 mg/L. Results revealed that germination percentage, net photosynthesis, chlorophyll content and catalase activity decreased significantly with increase in the concentrations of arsenic. The inhibitory effect of arsenite was more pronounced in reducing pigment content, germination percentage net photosynthesis and catalase activity than arsenate contaminated plants. The increase in lipid peroxidation, peroxidase activity with decline in catalase activity in rice is a typical reaction of plants to oxidative stress.

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