_____________________________________________________________________________________________________ ++ Ph.D. Scholar; # Professor; † Assistant Professor; *Corresponding author: E-mail: buibuiabonmai@gmail.com; Int. J. Environ. Clim. Change, vol. 13, no. 9, pp. 3255-3263, 2023 International Journal of Environment and Climate Change Volume 13, Issue 9, Page 3255-3263, 2023; Article no.IJECC.103441 ISSN: 2581-8627 (Past name: British Journal of Environment & Climate Change, Past ISSN: 2231–4784) Agro-morphological Characterization for Evaluation of Potential Upland Red Rice Cultivars in Manipur, India Tabuiliu Abonmai a++* , M. S. Singh a# , Ksh. Manishwari Devi a++ , Meghna Gogoi a++ , Priyanka Irungbam b,c† and Samikhya Bhuyan c† a Department of Agronomy, College of Agriculture, CAU, Imphal, Manipur, India. b Department of NRM, College of Horticulture and Forestry, CAU, Pasighat, Arunachal Pradesh, India. c Department of Soil Science and Agricultural Chemistry, Rajiv Gandhi University, Arunachal Pradesh, India. Authors’ contributions This work was carried out in collaboration among all authors. All authors read and approved the final manuscript. Article Information DOI: 10.9734/IJECC/2023/v13i92577 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/103441 Received: 25/05/2023 Accepted: 31/07/2023 Published: 09/08/2023 ABSTRACT The present investigation was carried out during the two consecutive kharif seasons of 2020 and 2021 at Tamenglong district, Manipur. The aim of the research was to determine the high-yielding upland red rice cultivars in Manipur. The study materials consisted of twelve red rice cultivars that thrived in upland conditions, sourced from various districts in Manipur. The experiment was laid out in a randomised block design (RBD) with twelve cultivars and three replications. The soil of the experimental field was silty clay loam in nature, having an acidic reaction (pH 3.9), low in available Original Research Article