喷施营养液对菊花扦插生根和生理生化代谢的影响  

EFFECT OF NUTRIENT-MIST ON ROOTING AND PHYSIOLOGICAL AND BIOCHEMICAL METABOLISM OF CHRYSANTHEMUM CUTTINGS

作　　者：郑成淑[1] 王文莉[1] 孙宪芝[1] 梁芳[1] 

机构地区：[1]山东农业大学园艺科学与工程学院作物生物学国家重点实验室,山东泰安271018

出　　处：《山东农业大学学报（自然科学版）》2007年第4期561-565,共5页Journal of Shandong Agricultural University：Natural Science Edition

基　　金：教育部留学回国基金;山东农业大学青年科技创新项目

摘　　要：以切花菊品种‘秀芳白’为试材,在扦插生根过程中不同时期喷施营养液后,测定了扦插生根指标和插穗叶片生理、生化指标的动态变化。结果表明,喷施营养液的插穗生根数、生根率以及插穗鲜重和干重与未喷施营养液的对照相比显著增加。喷施营养液和未喷施营养液的对照插穗叶片叶绿素含量早期（0-5 d）均出现下降趋势,扦插后期（20-25 d）与对照相比明显增加。喷施营养液的插穗叶片可溶性糖和可溶性蛋白质含量在扦插中期（10-20 d）和后期高于对照,而且第1 d开始喷施营养液的可溶性糖和可溶性蛋白质含量明显高于第5 d开始喷施营养液的处理。扦插过程中所有处理的核酸含量均出现上升趋势,而喷施营养液的核酸含量在扦插后期与对照相比显著增加,这说明扦插时外源喷施营养液可促进菊花插穗叶片营养物质的积累,从而促进生根和提高扦插苗品质。The rooting and physiological biochemistry metabolism changes were studied during rooting of the cuttings of chrysanthemum（Dendranthema grandiflora（Ramat.） Kitam.Xiufangba＇） with different period treatment by nutrient-mist.The results showed that the root number, rooting rate,fresh and dry weight of cuttings and metabolism indexes of the cuttings were improved remarkably by nutrient-mist during the cutting rooting.Chlorophyll contents decreased in primary stage（0-5 d） in all of the treatments,but increased significantly in later stage（20-25 d） in both of first-day nutrient-mist and fifth-day nutrient-mist treatments compared with the control.The contents of the soluble sugar and soluble protein of plant leaves with nurrient mist treatment increased in middle stage（10-20 d） and in later stage,and they were significantly higher in first-day nutrient treatments than in fifth-day nutrient treatments.Nucleic acid rose steadily throughout the experiment in all of the treatments,and they increased in nutrient-mist treatments in later stage compared with control.The results illustrated that nutrient-mist promoted to accumulate nutrition substances in leaves of cuttings,and promoted rooting and quality of cuttings of rooting in Dendranthema grandiflora.

关 键 词：菊花 营养液喷雾 扦插 品质 生理生化代谢 

分 类 号：S682.1[农业科学—观赏园艺]