Effects Of Different Time Of Buckle Shed On Superoxide Dismutase And Peroxidase Activities Of Grape Leaves

The effects of buckled shed of different time on the superoxide dismutase (SOD) and peroxidase (POD) activities of grape leaves (tender, function and old leaves) were studied by without buckle shed (CK), buckled shed on January 1st, 2018 (I) and buckled shed on January 20th, 2018 (II), sampled 6 times with interval one week. The results showed that the SOD and POD activities of grape tender leaves and functional leaves under buckled shed on January 1st and buckled shed on January 20th treatments were increased to varying degrees. However, the activities of SOD and POD of grape old leaves under buckled shed on January 1st and buckled shed on January 20th treatments increased in the early stage and decreased in the later stage. The SOD activities of old leaves sampled for the sixth time were higher 17.17% and 12.00% than those of the two treatments, respectively. The POD activity in old leaves in the sixth sampling of treatment buckled shed on January 1st decreased 11.00%. The results showed that the activities of SOD and POD in tender leaves, functional leaves and early old leaves of grapes were increased by the treatment of buckled shed, which indicated that the treatment of buckled shed could promote the growth of grapes and enhance resistance, and there was no significant difference between the buckled shed on January 1st and buckled shed on January 20th treatments.