[目的]为完善牡丹切花保鲜技术提供参考.[方法]用不同浓度CaCl_2和GA_3复配液对花蕾期的牡丹植株进行采前处理,研究不同处理对牡丹切花瓶插寿命的影响.[结果]不同处理切花花瓣蛋白质及花青素含量、细胞膜相对透性、花朵直径、花枝叶片叶绿素含量等均存在一定差异,总体来看,60 mg/L GA_3+5 000 mg/L CaCl_2处理效果最好,处理1～5 d花瓣花青素含量分别为0.020、0.287、0.623、0.842、1.447 A(吸光度),花瓣组织相对电导率分别为27.8%、27.6%、27.4%、31.6%、35.4%,花枝叶片叶绿素含量分别为2.455、2.585、2.774、3.097、3.136 mg/g,花朵直径分别为5.0、10.1、13.4、15.4、14.8 cm,花瓣蛋白质含量分别为4.894、5.082、5.179、5.607、5.308 mg/g.[结论]60 mg/L GA_3+5 000 mg/L CaCl_2采前处理可延长牡丹切花的瓶插寿命.%[Objective] The aim was to provide the reference for perfecting cut flower preservation technology of Paeonia suffruticose . [Method] The P. suffruticose plants were treated before harvest by composite liquid of CaCl_2 and GA_3 with different concn. at bud stage, and the effects of different treatments on vase life of cut-flowers were studied. [Result] The contents of protein and anthocyanin in petals and the relative permeability of their cell membrane, flower diameter and chlorophyll content in leaves of cut-flowers of P. suffruticose in different treatments were all different in some degree. As a whole, the effect of the treatment with 60 mg/L GA_3+5 000 mg/L CaCl_2 was the best, and the anthocyanin content of petals in 1-5 days of the treatment were 0.020, 0.287, 0.623, 0.842, 1.447 A(absorbance)resp. with relative permeability of 27.8%, 27.6%, 27.4%, 31.6%, 35.4% resp. the chlorophyll content in leaves were 2.455, 2.585, 2.774, 3.097, 3.136 mg/g resp. with flower diameter of 5.0, 10.1, 13.4, 15.4, 14.8 cm resp.,and the protein content in petal were 4.894, 5.082, 5.179, 5.607 , 5.308 mg/g resp.. [Conclusion] Preharvest treatment with 60 mg/L GA_3+5 000 mg/L CaCl_2 could prolong vase life of cut-flowers of P. suffruticose .
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