LIU Jian-xin,DING Hua-qiao,ZOU Qing-cheng,et al.Study on Dwarfing Effect and Mechanism of Paclobutrazol on Curcuma alismatifolia[J].Northern Horticulture,2013,37(20):79-82.
多效唑对姜荷花的矮化效果及机理研究
- Title:
- Study on Dwarfing Effect and Mechanism of Paclobutrazol on Curcuma alismatifolia
- 文章编号:
- 1001-0009（2013）20-0079-04
- 分类号:
- S 681.9
- 文献标志码:
- A
- 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。
- Abstract:
- 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 Curcuma alismatifolia，and it could also provide some theory foundation for other ornamental flower’s dwarfing mechanism research.
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备注/Memo
第一作者简介：刘建新（1980-），男，博士，助理研究员，现主要从事花卉育种及栽培研究工作。E-mail：liujianxin2000@aliyun.com.