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作 者 ：张圣旺1;郑国生2;孟丽2

期 刊 ：植物营养与肥料学报 2002年 8卷 4期 页码：483-487

关键词：钙；牡丹；衰老；

Keywords:Ca2+, tree peony, senescence,

摘 要 ：研究不同Ca浓度下牡丹花衰老过程中的生理生化变化。结果表明,随Ca浓度的增大,总花期可延长1～2d,但高Ca却降低了成花率;施Ca可明显延缓可溶性蛋白质降解,降低MDA、O₂^-含量以及乙烯释放速率,提高SOD酶活性和叶片光合作用,维持膜结构的稳定性,从而延缓牡丹花瓣衰老。

Abstract:The physiological and biochemical changes during the senescence of tree peony flowers were studied with different Ca²⁺ contents The results showed that,with the increase of Ca²⁺ content, total blossom period could be prolonged by 1～2 days, nevertheless, high Ca²⁺ content declined the blossom rate Application of Ca²⁺,some physiological and biochemical indexes such as MDA content,O₂^- production rate and ethylene release rate diminished and the soluble protein content, SOD activity and photosynthesis increased Those changes obviously maintained the structure and integrity of membrane, and then alleviated the process of senescence of tree peony flowers

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