Studies on the changes of kiwifruit's physiology and metabolism under different chlorine dioxide conditions

The study researched the postharvest physiology and metabolism of ‘Xuxiang' kiwifruit,and to provide theoretical and technical reference for the south kiwifruit 's storage. The test material was ‘Xuxiang' kiwifruit which planted in Zhejiang province,the chlorine dioxide,which concentrations were 0,20,50,and 80 mg·L^-1,were used before storage at(3±1) ℃. The kivifruit's hardness,respiratory intensity and physiological metabolism were measured regularly. Compared with the orther groups,50 mg·L^-1 chlorine dioxide inhibited the relative electrical conductivity and malondialdehyde(MDA) content of kiwi fruit 's,maintained superoxide dismutase(SOD) and peroxidase(POD) activity,hold the espiratory intensity of ‘Xuxiang ' kiwifruit effectively,hold the better quality and postpone its ripening and senescence of ‘Xuxiang' kiwifruit.