关键词: 香石竹, 切花, 细菌, 衰老

Abstract: This paper reports the effects of microoganism on senescence in cut carnation during postharvest life. The culture analysis of vase water and tangent plane of stem shows that bacterium is main microorganism in cut carnation during its postharvest life, A total of 32 bacterial isolates is obtained from 30 cut carnation. The different inoculation of bacteria is investigated on flowering status index. The results indicate that the differences of withering degree, flower diameter and vase life among different cut carnation treatment are significant, and six isolates of 32 strains are effective, two isolates are beneficial. The pathogenic bacteria are identified as Clavibacter.

Key words: cut-flower, carnation, bacterium, senescence