The rapid senescence is the main limiting factors ofpostharvest life in broccoli florets. In this study, effect of differentconcentration of ascorbic acid (0, 0.5, 1.5 and 2 %) on increasingpostharvest life of broccoli florets was investigated. The treated florets wasplaced in polyethylene bag and transferred to storage with 0°C and 20°C.The characteristics such as total chlorophyll, antioxidant capacity, totalphenol and lipid peroxidation was determined during storage. The resultsshowed that

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... ring low and high temperature storage, the total chlorophylland antioxidant capacity content declined and lipid peroxidation increased.The greatest delay in chlorophyll degradation and florets senescence inbroccoli during 0°C was found with 1.5 % ascorbic acid treatments that wasfollowed the lowest lipid peroxidation and the highest antioxidant capacity.But broccoli florets treated with 0.5 % ascorbic acid was more efficaciousthan other concentration at 20°. Overall, ascorbic acid with retardingchlorophyll degradation delayed florets senescence.