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|Title:||Effect of sole and conjoint application of iron and manganese on herb yield, nutrient uptake, oil quality vis-a-vis their optimal level in spearmint (Mentha spicata Linn. emend. Nathh. cv. ‘Arka’)|
|Keywords:||Mentha spicata;Iron;Manganese;Carvone;Micronutrient;Essential Oil;Spearmint|
|IPC Code:||A61K 36/00|
|Abstract:||A study was conducted to investigate the response of Mentha spicata Linn. emend. Nathh. cv. ‘Arka’ an essential oil bearing plant, to sole and conjoint application of different level of Fe and Mn with respect to its influence on herb yield, nutrient uptake and oil quality. For this a pot experiment was conducted under glasshouse conditions during the year 2005 at Central Institute of Medicinal and Aromatic Plants (CIMAP) in Lucknow. M. spicata plants were grown through suckers with four graded levels of iron and manganese, viz. Fe- 0, 5, 10 and 15 mg/kg and Mn 0, 2.5, 5 and 10 mg/kg and a combination of both these elements. From the results obtained, it is evident that the fresh weight, dry weight, oil yield and chlorophyll content showed a significant increase with increase in Fe supply; the optimal level of Fe as revealed by the results was Fe 10 mg/kg supply. Sole supply of manganese showed the optimal level to be Mn 2.5 mg/kg; beyond which growth parameters showed a gradual and significant decline. Sole supply of Fe and Mn 10 mg/kg and 2.5 mg/kg, respectively, showed maximum carvone percentage in M. spicata oil.|
|ISSN:||0975-1033 (Online); 0379-5136 (Print)|
|Appears in Collections:||IJNPR Vol.2(2) [June 2011]|
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