保鲜剂对杜鹃切花采后品质的影响  

Effects of Preservative on Postharvest Quality of Cut Flowers of Rhododendron pulchurum

作　　者：章志红[1] 付麟岚 宋经纬 周金良 孙静 ZHANG Zhihong;FU Linlan;SONG Jingwei;ZHOU Jinliang;SUN Jing(Jiangsu Urban and Rural Construction Vocational College,Changzhou 213147,China;Jiangsu Yuhua Rhododendron Plantation Co.,Ltd.,Changzhou 213181,China)

机构地区：[1]江苏城乡建设职业学院,江苏常州213147 [2]江苏裕华杜鹃种植有限公司,江苏常州213181

出　　处：《保鲜与加工》2024年第5期23-29,共7页Storage and Process

基　　金：2022年度江苏省高等学校基础科学(自然科学)研究重大项目(22KJA210002);江苏省高校优秀科技创新团队资助项目(苏教科〔2023〕3号);江苏高校“青蓝工程”资助项目(苏教师函〔2021〕11号);江苏省低碳建材与城乡生态工程研究中心项目(苏发改高技发〔2021〕1368号)。

摘　　要：为探究不同保鲜剂对杜鹃切花采后观赏品质的影响,并筛选出杜鹃切花的适合保鲜剂配方,以东洋杜鹃品种‘红元宝’为研究对象,采用不同保鲜剂对其进行瓶插处理,测定不同处理对切花瓶插寿命、鲜质量变化、水分平衡、质膜稳定性等生理指标和观赏品质的影响。结果表明:100~300 mg/L 8-羟基喹啉对‘红元宝’切花的保鲜具有积极作用,可有效延缓花瓣边缘卷曲和萎蔫,促进花径的增大并保持更长的开花时间(18 d),维持切花体内水分平衡,减缓其鲜质量变化及质膜透性的增加。而0.2~0.6 mmol/L硫代硫酸银处理不利于‘红元宝’杜鹃切花采后品质的保持,反而加剧了切花的衰老。经筛选,确定30 g/L蔗糖+200 mg/L 8-羟基喹啉为‘红元宝’杜鹃切花的最适保鲜剂。In order to explore the effects of different preservants on the quality of cut Rhododendron pulchurum flowers after harvest,and select a suitable preservative formula for cut flowers of Rhododendron pulchurum,the Rhododendron pulchurum variety‘Hongyuanbao’from Japan was used as the research material,and treated by different preservative,and the effects of different treatments on physiological indexes such as vase life,fresh weights change,water balance,plasma membrane stability,and ornamental quality were determined.Results showed that 100~300 mg/L 8-hydroxy⁃quinoline had a positive effect on the preservation of‘Hongyuanbao’,which could effectively delay the appearance of petal edge curling and wilting,promote the increase of flower diameter and maintain longer flowering time(18 d),main⁃tain water balance in the cut flower,slow down the change of fresh weight and the increase of plasma membrane perme⁃ability.While,0.2~0.6 mmol/L silver thiosulfate treatment did not significantly promote the postharvest quality of‘Hongyuanbao’cut flower,but exacerbated the senescence of cut flowers.After screening,the combination of 30 g/L sucrose with 200 mg/L 8-hydroxyquinoline was the best suitable preservative for‘Hongyuanbao’cut flower.

关 键 词：保鲜剂 采后 切花品质 杜鹃 无机盐 

分 类 号：S685.21[农业科学—观赏园艺]