Vol. 12, Issue 5 (2023)

Author(s):
Monika Patel and M Ganga

Abstract:
The study was conducted at the Department of Floriculture and Landscaping, Tamil Nadu Agricultural University, Coimbatore from April 2022 to April 2023. The study involved seven commercial varieties of jasmine, viz., Ramanathapuram Gundumalli, Madanban, Single Mohra and Ramabanam of the species Jasminum sambac, CO.1 Mullai and Parimullai of Jasminum auriculatum and CO.1 Pitchi of Jasminum grandiflorum. The study was conducted with two year old plants grown under open field condition, adopting all the recommended cultural practices. The statistical design adopted was RBD. Observations were taken during the critical stages of growth and development namely, pre flowering, flowering, peak flowering and lean flowering stages for all the parameters. Total chlorophyll content and relative water content were highest during the peak flowering satge (Stage III). There were significant differences among all the seven varieties for relative water content (RWC) parameter. The rates of physiological loss in weight (PLW) were less immediately after harvest and they rose afterwards. The highest ethlylene evolution rates were found after 20 hrs of harvesting. The study helps us to understand the physiological and biochemical parameters of seven varieties.