文档介绍：1 水杨酸对洋桔梗切花保鲜的效应* 李军萍,师进霖,徐峥嵘**, 徐琼华, 赵长明(云南省玉溪农业职业技术学院云南玉溪 653106) 摘要: 以不同浓度的水杨酸溶液对洋桔梗( Eustoma grandiforum ( Raf. ) Shinn ) 切花进行处理,研究了瓶插期间鲜重变化率、花径、水平衡值、相对电导率、可溶性蛋白质含量、脯氨酸含量、可溶性糖的变化规律。结果表明: 适宜浓度的水杨酸处理的切花可延长切花的寿命,增强花枝鲜重,维持水分平衡,延缓切花蛋白质含量下降与细胞膜相对透性的增大,降低切花中游离脯氨酸的含量;其中以 -1 SA 处理的保鲜效果最好。关键词: 水杨酸;洋桔梗切花;保鲜; 可溶性蛋白质;相对电导率[ 中图分类号][ 文献标志码] Effect of Salicylic Acid on Cut -flowers Eustoma grandiforum During Vase Periods LI Jun-ping , SHI Jin-lin, XU Zheng-rong, XU Qiong-hua, ZHAO C hang-ming (Yuxi Agricultural Vocation-Technical College, Yuxi 653106, China) Abstract: Cut-flowers Eustoma grandiforum were steeped in different concentrations of salicylic acid. The change rate of fresh weight, flower diameter,water balance values, relative conductivity, soluble protein content,praline content,soluble sugar content were studied . The results show that: suitable concentration of salicylic acid prolonged fresh day, increas ed fresh weigh , maintain ed water balance, delayed the degradation of soluble protein, lowered the relative membranes permeability,reduced the content of proline . The solution wit h60 -1 salicylic acid had the best fresh-keeping effect. Key words: Salicylic acid; Cut Eustoma grandiforum ; Fresh-keeping;Soluble protein; Relative electric conductivity 洋桔梗( Eustoma grandiform ( Raf. ) Shnn ) 为龙胆科草原龙胆属的宿根性草本花卉。其株态轻盈,花色典雅明快,花形别致可爱, 具有较高的观赏价值和经济价值。近年来,洋桔梗切花的保鲜已成为了一个研究热