Vol. 11, Issue 6 (2022)

Author(s):
Premnath Edhigalla Dathatria, Garima Aggarwal and Aarti Sharma

Abstract:
Carbon dioxide, methane, and nitrous oxide are some of the important greenhouse gases among which CO₂ ranks first in percent contribution to promote global warming. CO₂ may can contribute to the global warming but it is also a very important gas for plants to carry out photosynthesis. Furthermore, how a plant reacts to Increased CO₂ levels assist to determine future breeding strategies. Increased CO₂ concentrations are expected to boost plant physiological responses in general. A thorough perusal of current literatures on the effects of increasing CO₂ on crops has helped in understanding that an increased CO₂ levels can have both positive and negative impacts on the plant system. Elevated CO₂ conditions not only affect metabolic activities like photosynthesis, quality of protein produced in plants but also influence defense mechanism in plants against biotic (pest and plant pathogen) and abiotic stress; interaction of plant roots with soil microbes.