_____________________________________________________________________________________________________ *Corresponding author: E-mail: harshavas25@gmail.com; Int. J. Environ. Clim. Change, vol. 13, no. 10, pp. 2245-2251, 2023 International Journal of Environment and Climate Change Volume 13, Issue 10, Page 2245-2251, 2023; Article no.IJECC.105837 ISSN: 2581-8627 (Past name: British Journal of Environment & Climate Change, Past ISSN: 2231–4784) Varietal Evaluation of Single Petalled Tuberose (Agave amica Medik.) Germplasm for the Growth and Flowering Attributes Harshavardhan S. a* , Karthikeyan S. a , Chitra R. a , Kalaiyarasi R. b , Rajagopal B. c and Rajamani K. a a Department of Floriculture and Landscape Architecture, TNAU, Coimbatore – 641 003, India. b Department of Genetics and Plant Breeding, TNAU, Coimbatore – 641 003, India. c Centre for Plant Molecular Biology and Biotechnology, TNAU, Coimbatore – 641 003, 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/v13i102887 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/105837 Received: 26/06/2023 Accepted: 31/08/2023 Published: 05/09/2023 ABSTRACT The present experiment was to evaluate eight single petaled tuberose germplasm for growth and flowering attributes. All the tuberose germplasm showed a significant variation in the results. In vegetative parameters, the maximum plant height (79.3 cm) was observed in ‘Mexican Single’, while maximum leaf length (35.1 cm) and leaf width (3.4 cm) was observed in ‘Arka Keerthy’ and ‘Bidhan Rajani’, respectively, then high number of leaves seen in the germplasm ‘Mexi can Single. In flowering parameters, ‘Nilakottai local” found superior in days taken for spike emergence (64.7 days), spike length (90.9 cm) and rachis length (31.4 cm) respectively. While, floret length (7.28 cm) and Single floret weight (1.57 g) was observed in ‘Bidhan Rajani’. Original Research Article