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Journal of soil science and plant nutrition

versión On-line ISSN 0718-9516

Resumen

FIAZ, K et al. Drought impact on Pb/Cd toxicity remediated by biochar in Brassica campestris. J. Soil Sci. Plant Nutr. [online]. 2014, vol.14, n.4, pp.845-854.  Epub 20-Oct-2014. ISSN 0718-9516.  http://dx.doi.org/10.4067/S0718-95162014005000067.

Heavy metals toxicity in the human being is creating an alarming condition in the world. Not only are these metals largely effecting the growth of many plants but also the consumer’s health. In sector of agriculture for many years Pakistan is facing the reduction in availability of edible oil. The demand is fulfilled by importation by spending huge cost. Brassica campestris L. is very important oil seed crop of Pakistan that is providing 31% of total oil seed production in Pakistan. But due to toxicity of metals like Cd and Pb its growth and yield is decreasing. Keeping in view the importance of Brassica campestris L. in Pakistan an experiment was conducted using Pollutary manure biochar as a reclaiming agent for heavy metals and an amendment as drought stress reducer to check the improvement in yield of Brassica campestris L. It is found that biochar application not only gave positive correlation in immobilization of Pb and Cd but also improves the plants growth and yield. Enhancements in the Photosynthetic and Accessory pigments are observed regarding good vegetative growth. Thus biochar can be utilized in reducing the metals uptake as well as growth promoter.

Palabras clave : Biochar; heavy metals; drought; photosynthetic pigments.

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