目 录摘要 31 引言 42 材料与方法 52.1 实验材料 52.2 实验方法 52.2.1 保鲜剂配置 52.2.2 处理方法 52.2.3 测定生理指标 53 结果与分析 63.1 不同浓度水酸、柠檬酸处理对叶片光合色素含量的影响 63.2 不同浓度水酸、柠檬酸处理对叶片和花可溶性糖含量的影响 73.3 不同浓度水酸、柠檬酸处理对叶片 SOD 活性的影响 83.4 不同浓度水酸、柠檬酸处理对叶片 POD 活性的影响 84 小结与讨论 8参考文献:9致 10水酸、柠檬酸对菊花保鲜过程中生理特征的影响金杰,生命科学学院摘要:本文以秋菊鲜切花为材料,用不同浓度的水酸、柠檬酸配制成保鲜剂,测定秋菊瓶插过程中叶片和花部分生理特征的变化,结果表明:随着瓶插时间的延长,各组秋菊叶片色素含量均增加,其中 B 组(50 mg/ L 水酸)、D 组(50 mg/ L 柠檬酸)增幅较小,也反映出失水较少;在瓶插过程中,总体上各处理组秋菊鲜切花叶片和花可溶性糖含量较对比组高(后期叶片除外),其中 D 组处理含量最高,在保鲜后期,叶片和花分别达到 9.21 mg/ g 和 1.37 mg/ g;叶片 POD 活性的动态变化与糖相似:D 组处理始终最高;叶片 SOD活性的变化差异不大。结合形态表现,综合推断:加有 50 mg/ L 的水酸和 50 mg/ L 的柠檬酸的两种保鲜剂,对秋菊鲜切花有较好的保鲜作用。关键词:秋菊鲜切花;保鲜剂;水酸和柠檬酸;生理特征The Effect on Physiological Characteristics of SA and CA during the Preservation Process of Dendranthema morifoliumCut FlowerLI Jin-jie, College of Life SciencesAbstract:In this paper, Dendranthema morifolium cut flower used as the experiment material, treated with different concentrations of SA and CA and the physiological characteristics of the leaves were studied. The results showed that the longer the bottle inserting process, the more the contents was of chlorophyll in each group, and it was a relatively small increase in group B(50 mg/ L SA)and group D(50 mg/L CA), which reflected less water loss. During the bottle inserting process, the soluble sugar content in the leaves and flowers of the Dendranthema morifolium cut flo...