Volume : III, Issue : VI, June - 2014

Influence of Cd on Physiological Disturbances, Essential Oil Content and Composition on Palmarosa (Cymbopogan Martinii)

N. K. Srivastava

Abstract :

The supposition assumed in the present investigation was that some essential oil beå crops could be grown as alternate to conventional crops in heavy metal enriched soils. Investigations were carried out to evaluate the dose dependent effect of Cd on physiological changes and on essential oil content and composition. To sand culture grown Palmarosa plants different doses of Cd (ppm) consisting of 1- 0.0, 2- 1.25, 3-2.5, 4- 5.0, 5- 10.0, 6- 15.0, 7-20.0 were supplied. With increasing dose and duration plant growth characters as plant height, fresh weight and dry weight of shoot & root decrease as a result total plant biomass also decreases. Chlorophyll content and carbon-di-oxide exchange rate decrease indicating decrease in growth of plant. Oil yield was highest at nil Cd supply. % geraniol was highest at 2.50 ppm while geranyl acetate was highest at nil Cd supply; indicating effect of Cd on biosynthetic pathway. Cd (mg/Kg dry wt.) content was higher in roots than in shoots. The results support that Palmarosa can be grown up to 20 ppm Cd concentration.

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Article: Download PDF   DOI : 10.36106/ijsr  

Cite This Article:

N. K. Srivastava / Influence of Cd on Physiological Disturbances, Essential Oil Content and Composition on Palmarosa (Cymbopogan Martinii) / International Journal of Scientific Research, Vol.3, Issue.6 June 2014

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