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园艺学报 ›› 2009, Vol. 36 ›› Issue (7): 1077-1082.

• 研究简报 • 上一篇    下一篇

非洲菊切花茎堵塞的解剖结构观察

贺苏丹1,2;肖德兴1*;刘季平1,3;何生根1;涂淑萍2;吕培涛1   

  1. (1仲恺农业工程学院生命科学学院,广州 510225;2江西农业大学园林与艺术学院,南昌 330045;3华南农业大学园艺学院,广州 510642)
  • 收稿日期:2009-01-13 修回日期:2009-06-09 出版日期:2009-07-25 发布日期:2009-07-25
  • 通讯作者: 肖德兴

Anatomical Structure observation of Stem Blockage in Cut Gerbera Flowers

HE Su-dan1,2,XIAO De-xin1*,LIU Ji-ping1,3,HE Sheng-gen1,TU Shu-ping2,and Lü Pei-tao1
  

  1. (1College of Life Sciences,Zhongkai University of Agriculture and Engineering,Guangzhou 510225,China;2College of Landscape and Art,Jiangxi Agricultual University,Nanchang 330045,China;3College of Horticulture,South China Agricultural University,Guangzhou 510642,China)
  • Received:2009-01-13 Revised:2009-06-09 Online:2009-07-25 Published:2009-07-25
  • Contact: XIAO De-xin

摘要:

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24 h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。

关键词: 非洲菊, 纳米银, 导管阻塞, 细菌

Abstract:

On the basis of anatomical observation, the postharvest stem blockage in cut gerbera (Gerbera jamesonii) flowers and the effect of the nano silver treatment were investigated.The results showed that the obvious vascular blockage was found in the cut stem end,but not in the stem segments of upper and middle parts of cut gerbera flowers. Observation under SEM certified that the vascular blockage was resulted from bacteria. Pulsing the stem end of cut gerbera flowers for 24 h in nano silver solution, the vascular blockage could be significantly alleviated and delayed, and the vase life was also markedly prolonged.

Key words: gerbera, Gerbera jamesonii Bolus, nano silver, vascular blockage, bacteria

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