摘要
就杀菌剂二氯异氰脲酸钠(sodium dichloroisocyanurate,DICA)处理对瓶插香石竹(Dianthus caryphyllus L.)切花的保鲜效应进行了初步探讨。结果表明:与对照(蒸馏水)相比,15.4和77.0mg.L-1DICA处理可使香石竹切花的瓶插寿命分别延长6.0d和6.8d,但后者对观赏品质有不利影响;DICA处理有利于减缓切花茎基部水分导度下降,维持花枝的水分吸收和鲜样质量,尤以15.4mg.L-1DICA处理为佳;细菌计数试验和抑菌圈试验表明DICA处理可有效抑制瓶插液中微生物的生长。
The effects of a new-type bactericide, stabilized chlorine formulation, sodium dichloroisocya- nurate （DICA） on vase life of cut carnation （ Dianthus caryphyllus L. ） were investigated. The results showed that vase solution containing 15.4 and 77.0 mg·L^-1 DICA extended the vase life by 6.0 and 6.8 d respectively. DICA treatments significantly delayed the declination of hydraulic conductance in the stems, and maintained the water uptake and fresh weight of cut carnations. However, 77.0 mg·L^-1 DICA had adverse effect on the appearance quality of cut carnation. Further studies indicated that the growth of microorganism in the vase solution of cut carnations was effectively inhibited by 15.4 mg·L^-1 DICA. Conclusively, the optimum concentration of DICA for cut carnation as the vase solution was 15.4 mg·L^-1.
出处
《园艺学报》
CAS
CSCD
北大核心
2009年第1期121-126,共6页
Acta Horticulturae Sinica
基金
国家自然科学基金项目(30771519)
国家教育部留学回国人员启动基金项目([2007]1108)
广东省自然科学基金重点项目(8251022501000002)
广东省广州市重点科技攻关项目(2007Z2-E0071)
关键词
香石竹
切花
二氯异氰脲酸钠
杀菌剂
保鲜
carnation
Dianthus caryphyllus L.
cut flower
sodium dichloroisocyanurate （ DICA ）
bactericide
preservation
