Effect of elevated CO₂ and temperature on growth and biomass production of Nardostachys Jatamansi DC

Present experiment was carried out to study the effect of elevated level of CO₂ (600± 50ppm), elevated CO₂₊temperature (600±50 pprn + 2 ± 0. 5′C), and ambient CO₂ concentration (380 ± 50 pprn) on growth and biomass productivity of A/ardosfacrtysiafamans/for three years (2018–2020), under field conditions by using Open top chambers (OTCs) There was significant positive effect of CO₂ and temperature on growth, development and yield of N. jatamansi. Plants treated with elevated CO₂ and temperature showed increased number of leaves, plant height and leaf area in comparison to ambient condition. The above and below ground and total biomass were increased in both CO₂ and CO₂₊T treatments. The study concludes that the plant species residing in the alpine environment may positively affected with respect to the growth and biomass production due to the rising atmospheric CO₂ and temperature in near future. There is scope for more such studies at community level in alpine regions.