马来酰肼喷施对菊花开花及花期生理的影响  

Effects of Maleic Hydrazide on Flowering and Florescence Physiological Indices in Chrysanthemum

作　　者：刘萍[1] 胡广宇[1] 丁义峰[1] 刘旭丹[1] 邵晓琪[1] 王添乐[1] 李安琪[1] 刘骨挺[1] 

机构地区：[1]河南师范大学生命科学学院,河南新乡453007

出　　处：《北方园艺》2013年第6期65-69,共5页Northern Horticulture

基　　金：河南省重点科技攻关计划资助项目(092102310171;122102310356);河南省教育厅科技攻关计划资助项目(2011B180029)

摘　　要：以菊花"兼六香菊"品种为试材,研究了定头至花芽分化期喷施10、15、20mg/L 3种浓度的马来酰肼(MH)水溶液对"兼六香菊花期"生理生化动态及花径、株高和花期的影响。结果表明:各处理花瓣中的可溶性蛋白与可溶性糖含量都有一定程度的下降,超氧化物歧化酶(SOD)与过氧化物酶(POD)活力均受到不同程度的抑制,而丙二醛(MDA)含量、超氧阴离子(O2.)产生速率以及花瓣浸出液的相对电导率等不利的生理指标降低较为明显。总体反应为负面生理指标的减低幅度大于正面生理指标。处理组花径减小,株高降低,开花推迟,花期延长。其中以MH15mg/L处理优化观赏价值、延长花期最为适中。Taking chrysanthemum ‘Jianliuxiangiu＇ varieties as materails, three concentrations （ 10, 15,20 mg/L） maleic hydrazide （MH） aqueous solution were sprayed from fixed-head to flower bud differentiation. Physiological and biochemical indices in petals, flower diameter and plant height were determined during florescence. The results showed that the contents of soluble protein and soluble sugar in petals of treatment groups had a decrease to a certain extent, activities of superoxide dismutase （SOD） and peroxidase （POD） were inhibited in varying degrees. Malondialdehyde （MDA） content, superoxide anion （O2.） production rate and petals extract relative conductivity in petals were obviously declined. The overall changes for negative physiological indices reduced greater than the positive ones. Flower diameter and plant height reduced, flowering delayed, florescence extended in treatment groups. The effects of MH 15 mg/L was the best in optimizing ornamental value and extend florescence.

关 键 词：马来酰肼(MH) 菊花 花径 株高 花期 生理指标 

分 类 号：S682.11[农业科学—观赏园艺]