采前喷施不同种类钙肥对枸杞鲜果留树期及采后品质的影响OACSTPCD

Four-year-old Lycium barbarum"Ningqi No.7"plants were used as test materials.Four forms of calcium fertilizer were sprayed with 0.1%calcium acetate,calcium chloride,calcium nitrate and glucose-chelated calcium during the discolored period of Lycium barbarum.The changes of fruit quantity,hardness,stem tension,soluble solid,decay rate and decay index of Lycium barbarum fruits were analyzed during the tree period and postharvest storage period.The application effect of calcium fertilizer on the preservation of Lycium barbarum and the effect of calcium fertilizer spraying before harvest on the postharvest storage resistance of Lycium barbarum were explored.The results showed that the application of calcium chloride,calcium nitrate and calcium acetate at the discoloration stage of Lycium barbarum could reduce the fruiting rate and prolong the tree retention period,among which calcium chloride treatment had the most significant effect.Pre-harvest spraying of calcium glucose-chelate and calcium acetate can effectively reduce the decay rate and decay index of fresh Lycium barbarum during storage.This study provides scientific basis for selecting the way of keeping Lycium barbarum fresh in the future.