氯化钙对洋桔梗切花瓶插期间的保鲜效果和生理效应  

Effect of Calcium Chloride on Fresh-Keeping and Physiological Response of Cut-Flowers Eustoma grandiforum During the Vase Period

作　　者：师进霖 杜秀虹 姜跃丽 董绍辉 李军萍 

机构地区：[1]玉溪农业职业技术学院,云南玉溪653106

出　　处：《西南师范大学学报（自然科学版）》2011年第1期118-122,共5页Journal of Southwest China Normal University(Natural Science Edition)

基　　金：云南省教育厅科研资金资助项目(09Y0500)

摘　　要：以不同浓度的氯化钙(CaCl2)溶液作为保鲜液,对洋桔梗切花进行瓶插试验,研究其对切花形态变化和体内生理变化的影响.结果表明:适宜浓度的CaCl2溶液能明显延长洋桔梗切花保鲜时间,增加花枝鲜质量,保持切花的水分平衡,延缓呼吸高峰的出现,降低呼吸速率,延缓蛋白质降解与细胞膜相对透性的增大.其中,以400 mg/L处理的保鲜效果最佳,可使切花瓶插寿命比对照延长3.5 d.Cut-flowers of Eustoma grandiforum were steeped in CaCl 2 solutions of different concentrations and their morphological changes and some physiological characteristics were studied.The results indicated that suitable concentrations of CaCl 2 prolonged the freshness of the flowers,increased their fresh weight,maintained water balance,delayed the appearance of respiratory peak and the degradation of soluble protein and lowered the relative permeability of the cell membrane.The solution with 400 mg/L CaCl 2 showed the best fresh-keeping effect,in which vase-life of the cut-flowers was prolonged by 3.5 days compared with the untreated flowers.

关 键 词：氯化钙 洋桔梗切花 保鲜 呼吸速率 可溶性蛋白质 相对电导率 

分 类 号：Q949.776.4[生物学—植物学]