基于花茎解剖结构的研究,对非洲菊切花采后的花茎堵塞现象及杀菌剂纳米银处理的影响进行了探讨。结果表明:非洲菊切花茎基端的导管堵塞严重,而上部与中部导管未见明显堵塞现象。扫描电镜观察证实,非洲菊切花茎导管中的堵塞物为细菌。非洲菊切花采后用纳米银溶液浸渍花茎基端处理24h可明显减少和推迟导管中堵塞物发生,显著延长切花的瓶插寿命。 Based on the study of the anatomical structures of stems and stems, the effects of plugging of stems and the treatment of germicide nanosilver were studied. The results showed that the catheter at the base of the cut flowers of Gerbera jagged blocked seriously, while no obvious blockage occurred in the upper and middle catheters. Scanning electron microscopy confirmed that gerbils in gerbera flowering stems were bacteria. Germination of cut gerbera with nano-silver solution after immersion treatment of basal end of 24 h can significantly reduce and postpone the occurrence of blockage in the catheter, significantly prolong the vase life cut.