| The variety of cut rose were very much, they were welcome to everybody in the word, and they were just as nice symbols because of its elegance flower type and sweet odour, so they were admired as "flower queen". However, cut rose didn't storage, the main question was that storage and transportation of cut rose, and furthermore, the phenomenon of consenescence showed that its water content and nutrient content were lost easily after harvest, which led to its quality loss, such as petals were wilted rapidly, exfoliated and browned partly, its leaves didn't change green, its petals didn't flower or vaselife shortened and so on. At present, the problem of fresh-keeping for cut rose was not resolved, which affected the development of cut rose greatly. In this paper, the techniques of fresh-keeping and florescence controlling in"cut rose" after harvest were studied. The main results were as follows:1.The studies on the fresh-keeping of cut rose "faguohong" in different temperatures showed that the condition that temperature of 0℃had the best effect on storage, the flowers were still fresh after 11.2 days under this condition. It showed that water content loss and nutrition metabolism were restrained, the activities of CAT, SOD and POD increased differentially, MDA content and membrane relative permeability decreased, which led to fresh-keeping increased. but the effect of 6℃was the second, and 12℃'s was the last in the different conditions. But the storage of 12℃and control treatment's had significant effect (P<0.01).2. The studies on the fresh-keeping of cut rose "faguohong" in low temperature and O3 treatments showed that compared with the control flowers, the condition that temperature of 0℃and the O3 content of 200 mg·h-1 in 20min and 40min had better effects on storage, the flowers were still fresh after 14.4 days and 15.4 days respectively under those conditions, but temperature of 0℃and the O3 content of 200 mg·h-1 in 40min was better than temperature of 0℃and the O3 content of 200 mg·h-1 in 20min significantly(P<0.05). The condition that temperature of 0℃and the O3 content of 400 mg·h-1 in 20min and 40min had bad effects on storage, the flowers weren't still fresh after 9.5 days and 8.7days respectively under those conditions, but they had significant effect (P<0.05).3. For further study, the condition that temperature of 0℃and the O3 content of 200 mg·h-1 in 20min and 40min had the better effects, they showed that water content loss and nutrition metabolism were restrained, the activities of CAT, SOD and POD increased differentially, MDA content and membrane relative permeability decreased, which led to fresh-keeping increased, but the condition of treatment for 40min was better than that for 20min significantly (P<0.05). However, the condition that temperature of 0℃and the O3 content of 400 mg·h-1 in 20min and 40min respectively had bad effects, they showed that water content loss and nutrition metabolism were increased, the activities of CAT, SOD and POD decreased differentially, MDA content and membrane relative permeability increased, which led to fresh-keeping decreased, but the condition of treatments for 40min and for 20min had significant effects(P<0.05).4. The studies on the fresh-keeping of cut rose "faguohong" in low temperature and 1-MCP treatments showed that the condition that temperature of 0℃and concentration of 1-MCP 0.3 mg·L-1 and 0.9mg·L-1 had the better effects on storage, the flowers were still fresh after 14.8 days and 15.9 days respectively under those conditions. But the condition that temperature of 0℃and 1-MCP 2.7ppb had the bad effect on storage, the flowers weren't still fresh after 10.4days under those conditions, and the effect of those conditions and control conditions for storage had significant effect (P<0.05).For further study, the effect of 1-MCP 0.9mg·L-1 was better than that of 1-MCP 0.3mg·L-1 on storage significantly(P<0.05), it showed that water content loss slowly in the pants, nutrition metabolism was restrained, the activities of CAT, SOD and POD increased differentially, MDA content and membrane relative permeability decreased, which led to fresh-keeping increased. However, the condition of 1-MCP 2.7mg·L-1 led to consenescence, it showed that relative content loss and nutrition metabolize increased rapidly, membrane function changed unorderly.5.The studies on the vaselife of cut rose"faguohong" with different chemicals showed that the best concentration of the chemicals was that: sucrose: 1.8%3.6%, 8-HQ:40～140mg·L-1, anthocyanin:2～7 mg·L-1.6.The studies on the controlling florescence techniques of cut rose showed that the results by orthogonal test L9(34) and calculation of vase life showed that: sucrose: 1.8%, anthocyanin:4mg·L-1, 8-HQ:100mg·L-1, and that compound chemicals led to prolonged its florescence for 15.8 days. |
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