The effect of salicylic acid (SA) and sodium nitroprusside (SNP) was studied on vase life of chrysanthemum
flowers. Changes in fresh weight, vase life, electrolyte leakage, anthocyanin, reducing sugar and
lipid peroxidation content of cut flower of chrysanthemums were investigated. Vase solutions containing
0.1 and 1.0 M SA and 0.1 M SNP increased vase life compared to the control. Sum of fresh weight
loss after 10 days reduced in 0.1 and 1.0 M SA but SNP treatment increased fresh weight loss in comparison
to control flowers. Anthocyanin content increased in 10 M SA and all SNP vase solutions. The
malondialdehyde accumulation reduced in all SA and SNP treatments. Electrolyte leakage was lower in
all SA- and SNP-treated stems. Reducing sugar contents increased with SA treatment. SNP application at
0.1 and 1 M increased reducing sugar contents in treated stems. Postharvest SA and SNP application at
low concentration prolonged vase life of cut chrysanthemums by improving the membrane stability and
decreasing the lipid peroxidation.
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