不同杀菌剂对唐菖蒲切花的保鲜效果研究

研究不同杀菌剂对唐菖蒲切花的保鲜效果,以筛选出有效的保鲜液配方。用不同浓度的硼酸、乙醇、8-羟基喹啉、硝酸银作为杀菌剂处理唐菖蒲切花,测定切花的瓶插寿命、花枝重量、水分的平衡值、花径长度、日观赏值等指标。不同的杀菌剂对唐菖蒲的保鲜效果有明显的差异,其保鲜效果0.05 g/L硝酸银200 mg/L 8-羟基喹啉蒸馏水0.2 g/L硼酸0.5%乙醇。其中,0.05 g/L硝酸银可明显增加唐菖蒲切花的吸水量及鲜重,使瓶插寿命达到15 d,并且在第7天日观赏值达到最大,但硝酸银含有毒性。200 mg/L 8-羟基喹啉的保鲜效果最佳,其配方是4%蔗糖+200 mg/L 8-羟基喹啉+1 g/L硝酸钙。

Study on Preservative Effect of Different Fungicidees on Cut Flowers of Gladiolus hybridus Hort

The aim of the study was to discuss the fresh keeping effect of different fungicides on the cut flower Gladiolus hybridus Hort for screening out the suitable fresh-keeping agent.The cut flower Gladiolus hybridus Hort were treated in the pretreatment solution with different consentration of boric acid,ethanol,8-HQ,silver nitrate and the vase life,fresh weight of flowers,changes in water balance value,length of flower diameter and ornamental quality were studied.The results showed that the effects of different fungicides on the preservation were significantly different:0.05 g/L AgNO3>200 mg/L 8-HQ>dH2O>0.2 g/L H3BO3>0.5% C2H5OH.Using 0.05 g/L AgNO3 the fresh weight was significantly increased,the vasing days of cut Gladiolus hybridus Hort was up to 15 days and the maximum value of ornamental value was reached at the 7th day.However,AgNO3 was toxic.The effect of 200 mg/L 8-HQ would be the best whose formula was 4% sucrose+200 mg/L 8-HQ+1 g/L Ca(NO3)2.