Effect of (BA + GA3) on leaf quality,chlorophyllase and Mg-dechelase activities of Lilium (Lilium Longiflorum & Asiatic) cut flowers cv. " Fangio"

The effects of the concentration and methods of application of plant growth regulators (BA + GA3) on the post harvest longevity and leaf chlorophyll,chlorophyllase and Mg-dechelase activities of Lilium (Lilium Longiflorum & Asiatic) cut flowers cv. “Fangio" were evaluated. Plant growth regulators BA+ GA3 were used with two methods of application (spraying or pulsing in solution) and different concentration (25-50- 100-200,300mg/lit) for 24 hours and distilled water used as control.The experiment was carried out in a factorial based on completely randomized design and with three replication. The result indicated that addition of BA+GA3 (100mg/lit of each) as a pulsed treatment in solution for 24 hours prevented leaf yellowing and it increased vase life. This treatment was decreased chlorophyllase and Mg- dechelase enzymes activities but highest leaf brix° was at control (distilled water).