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钙素对栽培牡丹花衰老的影响 被引量:14

Effect of calcium on senescence of cultivated tree peony
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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、O-·2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。 The physiological and biochemical changes during the senescence of tree peony flowers were studied with different Ca2+ contents The results showed that,with the increase of Ca2+ content, total blossom period could be prolonged by 1~2 days, nevertheless, high Ca2+ content declined the blossom rate Application of Ca2+,some physiological and biochemical indexes such as MDA content,O-·2 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
出处 《植物营养与肥料学报》 CAS CSCD 北大核心 2002年第4期483-487,共5页 Journal of Plant Nutrition and Fertilizers
基金 山东省良种产业化工程项目(三零)资助
关键词 钙素 牡丹花 衰老现象 栽培技术 Ca^(2+) tree peony senescence
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