Irradiated sodium alginate improves plant growth, physiological activities and active constituents in Mentha arvensis L.
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Date
2012-05
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Abstract
Sodium alginate, irradiated by Co-60 gamma rays in solid state, elicits plant growth
promoting responses in various plants. Irradiated sodium alginate (ISA) was applied as a foliar
spray on mint (Mentha arvensis L.) to investigate its effect on plant growth, physiological
attributes and herbage yield as well as on content and yield of essential oil and its components
(menthol, L-menthone, isomenthone and methyl acetate). A simple pot experiment was conducted
applying five concentrations of ISA, viz. 25, 50, 75, 100 and 125 mg L-1, as foliar sprays. GPC
study revealed formation of lower molecular weight oligomer fractions in irradiated samples
which could be responsible for plant growth promotion in the present work. Of the five ISA
concentrations, 100 mg L-1 proved the best. As compared to the control, the ISA applied at 100 mg
L-1 resulted in the highest values of all physiological parameters at 100 and 120 days after
planting.
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Keywords
Active constituents, carbonic anhydrase, irradiated sodium alginate, Mentha arvensis, photosynthesis
Citation
Naeem M, Idrees Mohd, Aftab Tariq, Khan M Masroor A, Moinuddin, Varshney Lalit. Irradiated sodium alginate improves plant growth, physiological activities and active constituents in Mentha arvensis L. Journal of Applied Pharmaceutical Science. 2012 May; 2(5): 28-35.