Environmental Factors Influencing Yield and Quality of Essential Oils in Curcuma longa cv. Lakadong
2021
Sandeep, I Sriram | Sahoo, Bhaskar Chandra | Singh, Subhashree | Sahoo, Suprava | Nayak, Sanghamitra | Kar, Basudeba
Turmeric is an important medicinal plant possessing valuable secondary metabolites. The present study was conducted for evaluating the effect of environmental parameters on quality of essential oil from leaf and rhizome of ‘Lakadong’ turmeric cultivar. Five different agroclimatic regions of Odisha were selected for this study. The GC–MS analysis revealed significant differences in the abundance of constituents by means of area percentage as well as in essential oil yield. The area percentage of alpha phellandrene in leaf varied from 31.78 to 39.89%, while the ar-turmerone content in rhizome varied from 36.18 to 44.36% across the agroclimatic regions. However, no study has been done about the sensitive environmental factors responsible for these variations with respect to location. Thus, in the present study, relative sensitivity analysis has been carried out which revealed that temperature, humidity and altitude are most important factors for enhancing the quality and yield of leaf and rhizome essential oil. The present investigation will help in selection of suitable areas of cultivation for increasing the essential oil yield with quality in Lakadong cultivar.
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