Effect of sucrose and GA3 on the senescence of cut flowers of Narcissus tazetta cv. Kashmir Local

摘要

Cut narcissus flowers (Narcissus tazetta cv. Kashmir Local) held in sucrose (0.15 M) and GA3 (0.05 mM) showed an improvement in flower quality and vase life and an increase in fresh weight and water content. The treatments also resulted in a slowingdown of the age-related increase in membrane permeability as measured by ion leakage from perianth tissue discs. Treated flowers also maintained a higher soluble sugar content in the perianth tissue compared to untreated flowers held in distilled water.It is concluded that these treatments appear to modify membrane properties in addition to maintaining a respirable pool of sugars in the perianth tissue of flowers.