不同药剂对槟榔幼苗的矮化效应  

Dwarfing Effects of Different Drugs on Areca catechu L.Seedlings

作　　者：周焕起[1] 刘小玉[1] 付登强[1] ZHOU Huanqi;LIU Xiaoyu;FU Dengqiang(Coconut Research Institute of Chinese Academy of Tropical Agricultural Sciences/Hainan Engineering Research Center of Arecanut Industry,Wenchang 571339,Hainan)

机构地区：[1]中国热带农业科学院椰子研究所/海南省槟榔产业工程研究中心,海南文昌571339

出　　处：《中国热带农业》2021年第2期72-76,60,共6页China Tropical Agriculture

基　　金：海南省重大科技项目(ZDKJ201817—3—1);中国热带农业科学院基本科研业务费专项(1630152017013);中国热带农业科学院基本科研业务费专项(1630152019003)。

摘　　要：为了明确不同矮化药剂对槟榔的矮化效应,以1年生槟榔幼苗为试验材料,研究不同浓度多效唑、烯效唑、甲哌鎓等药剂对槟榔幼苗的株高、茎粗、最大叶长、最大叶叶柄长、SPAD值等指标的影响。结果表明:多效唑、烯效唑、甲哌鎓等3种药剂处理均能有效限制槟榔幼苗株高,抑制叶片生长,促进茎粗生长和叶绿素合成。以10g/L烯效唑喷施时,槟榔幼苗植株株高、最大叶长、最大叶叶炳长生长最缓慢,茎粗最大,叶片中叶绿素含量高,矮化效果最显著。In order to clarify the dwarfing effects of different drugs on Areca catechu L.seedlings,one-yearold Areca catechu L.seedlings were used as experimental materials to study the effects of different concentrations of paclobutrazol,uniconazole,mepigtlat-chloride on the plant height,stem diameter,maximum leaf length,maximum petiole length,SPAD value and other indexes.The results showed that paclobutrazol,uniconazol and mepigtlat-chloride could effectively limit the plant height of Areca catechu L.seedlings,inhibit leaf growth and promotes stem diameter growth as well as chlorophyll synthesis.When the concentration of uniconazole was 10 g/L,the growth of Areca catechu L.seedlings’plant height,maximum leaf length and maximum petiole length was the slowest,the stem diameter was the largest,the chlorophyll content in the leaves was the highest,and the dwarfing effect was the most significant.

关 键 词：多效唑 烯效唑 甲哌鎓 槟榔幼苗 矮化 

分 类 号：S792.91[农业科学—林木遗传育种]