Effect of pulsing on improving the vase life of cut chrysanthemum (Dendranthema grandiflora Tzevelev.) cv. White Double

Abstract

A lab experiment was conducted to extend the vase life of cut chrysanthemum cv. White Gold, by pulsing of chemicals. It consisted of three levels of pulsing chemical combinations and three level of duration of pulsing treatments which replicated trice. Among different pulsing treatments, 8-HQS 200 ppm + 20% sucrose recorded maximum water uptake (54.28 g/flower), cumulative water uptake (114.13 g/flower), Cumulative water loss (49.92 g/flower), cumulative water loss (110.23 g/flower), water balance (4.36 g/flower) on first day and fresh weight (116.94%) on 3rd day with maximum vase life of 4.78 days. Whereas, these post-harvest parameters were minimum in control. Among the durations of pulsing, 6h pulsing recorded maximum post-harvest attributes and minimum was in 2 h pulsing. Among the interactions, P2D3 influenced maximum water uptake (59.35 g/flower), cumulative water uptake (124.23 g/flower), cumulative water loss (54.38 g/flower), cumulative water loss (120.36 g/flower), water balance (4.97 g/flower) on first day, fresh weight (123.86%) on 3rd day with maximum vase life of 5.33 days.