_____________________________________________________________________________________________________ *Corresponding author: E-mail: rashmimainukalita@gmail.com; International Journal of Plant & Soil Science 34(7): 63-72, 2022; Article no.IJPSS.84504 ISSN: 2320-7035 Impact of Elevated Soil Temperature on Physiological Parameters of Tea Plant Growing Adjacent to Gas Flaring Site Rashmi Kalita a* , Kalparanjan Bhuyan a , Subhash Chandra Barua a and Gautam Kumar Saikia a a Department of Tea Husbandry and Technology, Assam, Agricultural University, Jorhat, Pin-785013, Assam, India. Authors’ contributions This work was carried out in collaboration among all authors. Authors RK and KB was responsible for performing the experiment, data collection, statistical data analysis, interpretation of the results and manuscript preparation. Authors SCB and GKS conceived the idea. Author RK designed the experiment and edited the manuscript. All authors read and approved the final manuscript. Article Information DOI: 10.9734/IJPSS/2022/v34i730890 Open Peer Review History: This journal follows the Advanced Open Peer Review policy. Identity of the Reviewers, Editor(s) and additional Reviewers, peer review comments, different versions of the manuscript, comments of the editors, etc are available here: https://www.sdiarticle5.com/review-history/84504 Received 03 January 2022 Accepted 06 March 2022 Published 10 March 2022 ABSTRACT Gas flaring is now recognized as a major environmental problem. Smoking flare may be a significant contributor to overall particulate emissions. It also results in production of excessive heat in the nearby areas. The present investigation aims to study the impact of elevated soil temperature on physiological parameters of tea plant growing adjacent to Gas flaring site. The experimental plot was laid out in 5 x 2 factorial RCBD with two factors viz. different distances from the flare site and two seasons in two different tea gardens adjacent to Kathaloni OCS and Merbil Majuli OCS 6 in Dibrugarh district of Assam in 2019-20. Plant and soil samples were collected and estimation of some select plant physiological parameters was done. Significant increase in soil temperature and decrease in soil moisture content was observed in distance closer to the flare pit. The result of the study revealed that there was a gradual decline in relative turgidity, specific leaf weight, plucking point density, stomatal count, leaf area measurement, polyphenol content, chlorophyll content, caffeine content but an increase in water saturation deficit of the green tea leaves on plants existing at a distance moving closer to the flare pit. A significant increase in rain flushing season as compared to autumn was observed in all the plant parameters except water saturation deficit. Original Research Article