外源物质对四季樱草抗寒性的影响  

Effects of Exogenous Substances on Cold Resistance Capacity of Primula obconica Hance

作　　者：王建强 邓永成 涂继红 周俐 

机构地区：[1]武汉市园林科学研究所,武汉430081

出　　处：《湖北农业科学》2013年第21期5233-5235,共3页Hubei Agricultural Sciences

基　　金：武汉市园林局科研资助项目[武园(2009)22号]

摘　　要：分别对四季樱草(Primula obconica Hance)叶片和花喷施脱落酸(ABA)、氯化钙(CaCl2)、磷酸二氢钾(KH2PO4)和抗冻必施,10 d后取相同部位的叶片和花在不同温度处理下测定其相对电导率、游离脯氨酸(Pro)和丙二醛(MDA)的含量。结果表明,与对照相比,4种外源物质不同程度地提高了四季樱草花和叶的抗寒性;喷施ABA对叶片效果更为明显,而喷施KH2PO4对花瓣的效果更为明显。The leaves and flowers of Primula obconica Hance was sprayed with ABA, CaCl2, KH2 PO4, and Antifreeze agent 10 days later the relative electric conductivity, Pro and MDA content for the same parts of the leaves and flowers by differ- ent low temperature treatment were determined. Results showed that compared with the control, four kinds of exogenous sub- stances improved the cold resistance capacity of P. obconica Hance at different levels. The effect of spraying ABA on leaves and spraying KH2 PO4 on flowers was more obvious than that of others.

关 键 词：四季樱草(Primula obconica Hance) 外源物质 抗寒性 

分 类 号：S682.15[农业科学—观赏园艺] Q945.78[农业科学—园艺学]