氯吡脲和多效唑配施对山药叶片一些生理特性的影响.pdf

南方农业学报 JOURNAL OF SOUTHERN AGRICULTURE2012、43(12):1952-1957
ISSN 2095-1191: CODEN NNXAAR
http:/www.nfnyxb.eorn
DOT:10.39695j:is2095-1191.2012.12.1952
氯吡脲和多效唑配施对山药叶片
一些生理特性的影响
李创珍,王军民2,徐晶,何龙飞",何海旺い
(广西大学农学院,南宁53005;2湖北省十堰市农业科学研究院,湖北十場4400
摘要【目的)研究喷施氯吡脲和多效唑对山药叶片一些生理特性的影响,为阐明氯吡脲和多效唑配施提高山药块
茎产量机理提供理论依据。【方法以山药品种“桂淮2号”为材料,在块茎膨大初期进行氯吡脲和多效配施,测定山药
叶片叶绿素、可溶性蛋白、可溶性糖、MDA、脯氨酸含量和PDD活性变化,进行阿归方程和差异显著性检验。[结果]氯吡
脲和多效唑配施可提高山药叶片叶绿素和可溶性蛋白含量、降低叶片可溶性糖含量,叶片POD活性增强,脯氨酸积累
増多,MDA降低,其中以氯毗脲影响较大。氯吡豚和多效唑配施的最适浓度分别为30、400 mg/kge【结论]氯吡豚和多效
唑适宜配施能够促进山药叶绿素合成,提高山药叶片蛋白质积累和增强抗性
关键词:山药;氯叱脲;多效唑;生理特性
中图分类号:S632
文献标志码:A
文章编号:2095-1191(2012》12-1952-06
ffects of forchlorfenuron and paclobutrazol combination on the
ohysiological characteristics of yam leaves
LI Chuang-zhen WANG Jun-min",XU Jing HE Long-fei, HE Hai-wang
( Agricultural College, Guangxi University, Nanning 53005, China; Shiyan Academy of Agricultural Sciences, Shiyan
Hubei 442000. China
Abstract: [jective This study aimed to understand the physiological characteristics of yam(Dioscorea opposita
pr
よ sis tor
er yield.【 Method
lob
slied to the
yam during the in-tuher expansion period to determine the chlorophyll content, soluble protein, soluble sugar, MDA
ine content and changes in POD activity in yam leaves and to conduct the regression equation and difference test
analysis. Result F rchlonrfenuron and paclobutrazol combination could improve the chlorophyll content and soluble prolein
content, reduce the soluble sugar content, strengthen the POD activity, increase the proline accumulation, and reduce th
MDA content in yam leaves; out of the two fertilizers, the influences of orchlorfemron were greater. The optimal applica
tion concentration for f rhlorienuron and paclobutrazol was 30 and 400 mg/kg, respectively. Conclusion ]Appropriate
concentrations of forchlorfenuron and paclobutrazol could promote the chlorophyll synthesis and im
e proteln accu
mulation
Key words: yam (Dioscorea opposita Thunb. ) forchlorfenuron; paclobutrazol; physiological characteristics
0引言
和増强免疫、胃肠功能以及降血糖、抗衰老、降脂
研究意义山药,原名薯蓣,又称淮山、广山药,抗脚瘤等功效(赵彦青和王爱风,2000在食用上,
属薯蓣科薯属,一年生或多年生缠绕性藤本植物山药常与其他原料一起烹制成各种菜肴,如山药
(蔡金辉等,199)。山药药食两用,既可鲜薯煮熟食鸡、山药排骨汤等,极受人们喜爱,对山药需求量日
用,又可加工成药材、保健食品,是一种高产高附加益增大。化学调控技术是指以应用植物生长调节物
值薯类经济作物(韦本辉等,200)。山药具有调节质调节作物生长发育,使其朝着人们的预期目标发
收稿日期:2012-05-06
基金项目:国家自然科学基金项目(30760125);农业公益性行业科研专项项目(200903022-02)
作者简介:*为通讯作者,何龙飞(1967-),教授,博士生导师,主要从事作物发育、营养及环境生理研究工作,F-mail:Ifhe(@gu.edu.cn
李创珍(1954-),主要从事农业技术推广工作,E-mail:2823064230 qq.C om
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