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International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2018, Volume : 6, Issue : 3
First page : (146) Last page : (153)
Article doi: : http://dx.doi.org/10.18782/2320-7051.6274

Effects of Different Heavy Metals and Mycorrhizal Treatments on Various Physiological Processes in Cotton Genotypes

Manohar Lal*, Ajeev Kumar, Manish Jangra, Mahesh Kumar and Sunita Sheokand
Department of Botany and Plant Physiology, CCS HAU, Hisar (India) - 125004
*Corresponding Author E-mail: manohar.hau@gmail.com
Received: 21.02.2018  |  Revised: 28.03.2018   |  Accepted: 6.04.2018  

 

 ABSTRACT

Soil pollution by heavy metals is the most important problem nowadays because toxic contaminants like heavy metals are released in the natural ecosystem due to anthropogenic activities and affect the entire ecosystem and pose harmful health consequences in all life forms. The present study was carried out to study the effects of Cd and Pb and mycorrhizal inoculation on two cotton genotypes at vegetative and flowering stage. These metals delayed and reduce the germination of cotton genotypes and induced oxidative stress. The oxidative stress caused the peroxidation of membrane lipid and disturb the membrane structure, which resulted in electrolyte leakage from the cells. These metals also reduced the chlorophyll content and chlorophyll fluorescence which affect the photosynthetic efficiency of plants and reduced the growth and yield of plants. The mycorrhizal inoculation improve the plant growth under heavy metals stress by reducing the toxic effects of heavy metals and improving anti-oxidative system of plants. The effect of Cd was more toxic than Pb. The effects of these heavy metals was relatively more in Bt cotton as compared to Desi cotton genotype.

Key words: Heavy metals, Cadmium, Lead, Cotton, Membrane damage

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Lal, M., Kumar, A., Jangra, M., Kumar, M. and Sheokand, S., Effects of Different Heavy Metals and Mycorrhizal Treatments on Various Physiological Processes in Cotton Genotypes, Int. J. Pure App. Biosci.6(3): 146-153 (2018). doi: http://dx.doi.org/10.18782/2320-7051.6274