Plant growth regulators improved cutting induced physio-biochemical responses to postponement senescence in chrysanthemum

The marketability of cut flowers relies on its postharvest longevity, making it crucial to develop technologies that canextend vase life. life in chrysanthemum is dependent upon floret senescence and leaf yellowing. In view ofextending the life, present study elucidates implication plant growth regulators viz. benzyl adenine (BA),thidiazuron (TDZ) salicylic acid (SA) performance flower longevity stems. Theharvested stems were treated with various concentrations BA SA at 50,100,150 200 μM TDZ 5,10,15and 20 μM. Treatments containing 10 100 most effective improving (23.35 and20.32 days respectively) However, outplayed followed by extends flowerlongevity through maintenance higher physiological biochemical characteristics. Cluster analysis inferred thetreatments 50 and100 5 and10 found be efficient delaying (24.01 days)and yellowing (20.54 days) Postharvest exhibited a positive correlation withantioxidant activities, total soluble sugars proteins, while showed negative anthocyanin andcarotenoid contents. results have demonstrated use such as adenine, thidiazuron andsalicylic may preserve quality delay their senescence.