两种植物生长延缓剂对盆栽大丽菊的矮化效应  

Effects of Two Plant Growth Retardants on Dwarfing of Potted Dahlia pinnata Cav.

作　　者：赵瑞荣 白艳荣[2] 蒋亚莲[3] ZHAO Rui-rong;BAI Yan-rong;JIANG Ya-lian(Jindian Scenic Spot,Kunming 650224,China;Kunming University,Kunming 650213,China;Flower Research Institute,Yunnan Academy of Agricultural Sciences,Kunming 650201,China)

机构地区：[1]昆明市金殿名胜区,云南昆明650224 [2]昆明学院,云南昆明650213 [3]云南省农业科学院花卉研究所,云南昆明650201

出　　处：《黑龙江农业科学》2022年第4期59-63,共5页Heilongjiang Agricultural Sciences

摘　　要：为探究不同浓度多效唑与丁酰肼对盆栽大丽菊的矮化效应,以盆栽玫红双色大丽菊为试验材料,采用生长延缓剂丁酰肼、多效唑定期定量喷施大丽菊幼苗,调查两种生长延缓剂对盆栽大丽菊株型及叶绿素含量的影响。结果表明:丁酰肼与多效唑两种植物生长延缓剂对玫红双色大丽菊的株高、冠幅、叶长、叶宽、叶绿素含量均产生不同程度的影响。其中150 mg·L^(-1)多效唑浓度处理下,植株得到较好的矮化,不影响叶形,能够使叶色加深,叶片增厚,植物抗逆性增强,使得株型紧凑饱满,观赏效果较好;2500 mg·L^(-1)丁酰肼处理下,植株矮化、株型紧凑、叶片浓绿增厚、抗逆性加强的效果最佳。整体上丁酰肼对玫红双色大丽菊起到的矮化效应好于多效唑,更适合作为玫红大丽菊矮化栽培的处理剂。In order to explore the effects of different concentrations of Paclobutrazol and bupizide on the dwarfing of potted dahlia,the potted rose red two-color dahlia was used as experimental materials,and the growth retardants bupizide and Paclobutrazol were regularly and quantitatively sprayed on dahlia seedlings to investigate the effects of two growth retardants on the plant type and chlorophyll content of potted dahlia.The results showed that butyryl hydrazide and Paclobutrazol had different effects on plant height,crown width,leaf length,leaf width and chlorophyll content of rose red two-color dahlia.Under 150 mg·L^(-1) Paclobutrazol treatment,the plant was dwarfed,the leaf shape was not affected,the leaf color was deepened,the leaf was thickened,the plant resistance was strengthened,the plant shape was compact and full,and the ornamental effect was good.The 2500 mg·L^(-1) butyryl hydrazine treatment had the best effect of dwarfing plants,compact plant type,thick green leaves and strengthening stress resistance.On the whole,butyryl hydrazide has a better dwarfing effect on rose red two-color dahlia than Paclobutrazol,which is more suitable as a treatment agent for dwarf cultivation of rose red dahlia.

关 键 词：多效唑 丁酰肼 矮化 大丽菊 

分 类 号：S66[农业科学—果树学]