多效唑对姜荷花的矮化效果及机理研究  

Study on Dwarfing Effect and Mechanism of Paclobutrazol on Curcuma alismatifolia

作　　者：刘建新[1] 丁华侨[1] 邹清成[1] 王炜勇[1] 蔡立艳 

机构地区：[1]浙江省农业科学院花卉研究开发中心,浙江杭州311202 [2]萧山区南翔小学,浙江杭州311227

出　　处：《北方园艺》2013年第20期79-82,共4页Northern Horticulture

基　　金：杭州市科技发展计划种子种苗专项资助项目(20120332H21);萧山区科技计划重点资助项目(2011242);浙江省农科院院地合作资助项目

摘　　要：以姜荷花切花品种"清迈粉"为试材,研究了不同浓度的多效唑处理对姜荷花农艺性状、解剖结构、叶绿素含量及荧光参数变化的影响。结果表明:不同浓度的多效唑处理姜荷花植株后,株高、花茎长以及叶面积变小,而茎粗以及花茎粗增加;花茎的变短变粗与花茎细胞纵向长度变短、横向长度变大有关;多效唑处理可以使得其叶片的上下表皮细胞都变小,而气孔数增多,同时使得上表皮的气孔变小,而下表皮气孔变大;多效唑处理后使得叶片的叶绿素含量增加,最大光合效率也相应增加。该研究可用于盆栽姜荷花的生产,同时为其它观赏花卉的矮化机理研究提供理论借鉴。Taking Curcuma alismatifolia ＇Chiang Mai Pink＇ as materials, the effect of different concentrations of paclobutrazol on agronomic traits, anatomic structure, chlorophyll content and fluorescence parameter change were researched. The results showed that besides some traits such as plant height shorten, scape length and leaf area lessened, other traits included diameters of both stem and scape increased the behavior that scape shorten and thicken owed to scape cells shorten in lengthways and largen in widthways;paclobutrazol made area of both upper and lower epidermal cell reduced, whereas number of corresponding stomata increased. Furthermore, paclobutrazol also made area of upper epidermal stomata small, whereas lower epidermal stomata largen. Based on measuration experiment about chlorophyll content and fluorescence, paclobutrazol treatment could increase chlorophyll content obviously. Furthermore, with the concentration increasing,paclobutrazol also could raise photosynthesis efficiency. Therefore,the research could be used in pot flower production of Curcurna alismatifolia, and it could also provide some theory foundation for other ornamental flower＇s dwarfing mechanism research.

关 键 词：姜荷花 “清迈粉” 多效唑 叶绿素荧光 

分 类 号：S681.9[农业科学—观赏园艺]