2025, Vol. 8, Issue 6, Part D

author(s)
Kumari Maya Sinha, RS Dhua, PK Tiwari and Divya Tiwari

abstract
An experiment was carried out at Horticulture Research Station, BCKV, West Bengal to study the effect of pulsing in tuberose spike preservation and floret senescence. Main objective of the experiment was to study the effect of pre-storage pulsing on vase life of tuberose. The experiment was laid out in factorial complete randomized block design in three replications where first factor was three levels of pulsing and two levels of time intervals. The 64 spikes of tuberose cv. Calcutta Double were used as test material in which one lot of 32 spikes was kept for pulsing in sucrose (20%) solution and the second lot i.e. 32 spikes in solution containing sucrose (20%) + 8 hydroxyquinoline sulphate (400 ppm) + citric acid (0.25%) for a period of 12 and 24 hours. Half of each lot i.e. 32 spikes were weighed individually after a period of 12 hours and another half after a period of 24 hrs. The studies revealed that pre-storage pulsing with sucrose in combination with HQS and citric acid was found most effective than sucrose alone. Increase in the duration of pre-storage pulsing from 12-24 hours, post storage quality of flowers in terms of solution uptake, flower opening decreased by way of increasing the floret wilting.