_____________________________________________________________________________________________________ *Corresponding author: E-mail: stutipathak94@gmail.com; Int. J. Environ. Clim. Change, vol. 13, no. 12, pp. 139-151, 2023 International Journal of Environment and Climate Change Volume 13, Issue 12, Page 139-151, 2023; Article no.IJECC.109186 ISSN: 2581-8627 (Past name: British Journal of Environment & Climate Change, Past ISSN: 2231–4784) Alteration in Flowering and Fruiting of Commercial Vegetable Crops under Protected Condition: A Review Stuti Pathak a* , Vishal Johar a , Aman Angaria a and Anand Vishal a a Department of Horticulture, School of Agriculture, Lovely Professional University, Phagwara, 144111, Punjab, 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/v13i123668 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/109186 Received: 05/09/2023 Accepted: 13/11/2023 Published: 16/12/2023 ABSTRACT India ranks as the second-largest global vegetable producer, yet its current productivity falls short of meeting the nutritional requirements of its expanding population. The country boasts an impressive array of vegetable varieties, spanning from tropical to subtropical and temperate regions. The adoption of protected cultivation for high-value crops has emerged as a pivotal technology to enhance productivity, elevate quality, and secure profitable returns. Optimal production quality can be ensured by implementing precise crop management techniques under controlled conditions, enabling the cultivation of two to three high-yield crops annually. Crop regulation planning entails the identification, selection, implementation, and monitoring of strategies to govern the yield and quality of vegetable crops. The timing of flowering can be strategically manipulated, either advanced or delayed, in response to market demand, leveraging a range of tools and techniques for flowering and fruit regulation. In pursuit of sustainability, it becomes imperative to maximize food Review Article