부산대학교 도서관

The impact of elevated CO 2 (eCO 2 ) and elevated temperature (eT) on growth, phenology, yield, and quality has been widely investigated in fi eld crops, but limited work has been done so far on the combined eff ect of eCO 2 and eT on medicinal plants. Hence, a 2-year experiment was conducted at CSIR-Institute of Himalayan Bioresource Technology, Palampur, India, to study plant growth, biomass, and essential oil composition of mushkbala ( Valeriana jatamansi Jones) in response to elevated CO 2 , temperature, and their combination with the regulation of fertilization. The growth and yield of V. jatamansi were significantly aff ected by environmental conditions and fertilization. Root length and root volume were 16.85 and 48.99% higher in the combined eCO 2 and eT conditions compared to the ambient conditions. Combined eCO 2 and eT showed more positive effect on the stem, root and aboveground biomass as compared to leaf, and fl ower biomass, over the years. Fertilization improved the growth and biomass of plants compared to unfertilized pots. FACE + FATI positively aff ected V. jatamansi ’s major essential oil compound patchouli alcohol, while fertilization showed a negative eff ect. Our results highlight the need for long-term studies on medicinal and aromatic plants due to changes in the growth and effi ciency of crop.