Preservation Effect of 1-MCP Mixed Vase Solution on Cut Flower of Eustoma grandiflorum (Raf.) Shinners
The cut flowers of Eustoma grandiflorum(Raf.)Shinners were selected as the experimental materials to investigate the effect of different preservative solutions on the preservation of the flowers.The cut flowers were treated with solutions comprising different concentrations of 1-MCP(1-methylcyclopropene),sucrose,citric acid(CA),salicylic acid(SA)and calcium chloride(CaCl2)by using orthogonal experimental design of five factors and four levels.The results showed that the preservative solution(600 mg/L 1-MCP+400 mg/L CA+3%sucrose+20 mg/L SA+100 mg/L CaCl2)and the preservative solution(800 mg/L 1-MCP +100 mg/L CA+3%sucrose+40 mg/L SA+200 mg/L CaCl2)could significantly delay the vase life of cut flowers of E.grandiflorum 8.83 d and 8.41 d than the control.Meanwhile,fresh weight,value of water balance and POD activity decreased more slowly,and the relative electric conductivity(REC)rose more slowly.They are the most effective preservative solutions in this study.