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中国农学通报

中国农学通报 ›› 2009, Vol. 25 ›› Issue (13): 154-156.

• 林学 园艺 园林 • 上一篇    下一篇

食用色素与化学染料对桔梗切花的染色效应

刘 武,章玉平,黎土娇   

  • 收稿日期:2009-04-09 修回日期:2009-04-20 出版日期:2009-07-05 发布日期:2009-07-05

Effects of Edible and chemical Pigments on Dyeing of Cut Platycodon gradiflorus

Liu Wu , Zhang Yuping, Li Tujiao   

  • Received:2009-04-09 Revised:2009-04-20 Online:2009-07-05 Published:2009-07-05

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摘要： 探讨了6种食用色素与20种化学染料对桔梗切花的染色效应。结果表明：桔梗切花对日落黄、苋菜红适应性较好，其次为亮蓝、胭脂红，对鸡蛋黄、果绿适应性较差。不同食用色素适宜的染色浓度和染色时间分别为日落黄(18g/L、6h)、苋菜红(15g/L、7h)、亮蓝(12g/L、6h)、胭脂红(15g/L、6h)、鸡蛋黄(18g/L、8h)、果绿(18g/L、8h);桔梗对化学染料的适应性均较差，在20种供试的化学染色剂中，只有7种能够不同程度的染色，其中溴酚蓝（6g/L,8h）、甲基蓝（5g/L,8h）染色效果较好。温度高、切花开放程度大时染色速度快，花枝去叶与否对染色效果影响不明显。染色后的桔梗瓶插寿命显著缩短，但能达到切花所要求的4～6d的观赏期。

关键词: 白肋烟, 白肋烟, 种植密度, 施氮水平, 组织结构

Abstract: In this paper effects of edible and chemical pigments on dyeing of cut Platycodon gradiflorus were studied. The results showed that Sunset yellow and Amaranth were more suitable for cut Platycodon gradiflorus than Brilliant Blue，Ponceau 4R , Egg Yolk color and Apple Green were not suitable for cut Platycodon gradiflorus. Suitable density and time of different edible pigments were Sunset Yellow(18g/L,6h), Amaranth(15g/L,7h), Brilliant Blue(12g/L,6h), Ponceau 4R(15g/L,6h), Egg Yolk color (18g/L,8h) and Apple Green (18g/L,8h). There are 7 varieties which are effective to cut Platycodon gradiflorus among 20 chemical pigments, the effects of tetra bromophenol blue （6g/L,8h）and Methyl Blueness (5g/L,8h) were better. The dyeing speed was fast when cut Platycodon gradiflorus opened in a great degree. Flower stems with more or less leaves were not significant different. The Vase life became shorter after dyeing but still had a period of 4~6 days for ornament.