干旱区生态环境知识资源中心(Arid): 多效唑对柠条幼苗构型特征的影响

Arid

	多效唑对柠条幼苗构型特征的影响
其他题名	Effect of paclobutrazol on architecture characteristics of Caragana korshinskii seedlings
	宋晓敏 1; 原伟杰 2; 虞毅 1; 高永3 ; 党晓宏 3; 钱顺萍 4
来源期刊	干旱区资源与环境
ISSN	1003-7578
出版年	2017
卷号	31 期号:12 页码:184-188
中文摘要	以1年生柠条(Caragana korshinskii)幼苗为材料,研究了不同浓度多效唑处理对柠条幼苗株高、基径、分枝数、分枝角度等地上部分和根系特征参数等地下部分的影响,分析不同浓度处理之间柠条幼苗构型指标的差异。结果显示:随多效唑处理浓度的增加,柠条幼苗株高增长量显著减少、基茎增长量显著增加;分枝数和分枝角度随处理浓度的增加呈现先增加后降低的趋势,400mg·L~(-1)浓度处理使幼苗根系表面积显著增大,根系分级数和各级根系数量增加,表明施用适宜浓度多效唑能够矮化柠条幼苗,增粗基茎,促进分枝、扩大分枝角度,增大柠条幼苗单位面积地表覆盖;同时,能够拓展地下根系的分布面积,增加各级根系数量;综合考虑,在调控柠条幼苗空间构型方面,适宜的多效唑处理浓度为300~ 400mg·L~(-1)。
英文摘要	The experiments were conducted to study the effects of paclobutrazol with different concentrations on the architecture characteristics of Caragana korshinskii seedlings,such as the plant height,the basal diameter, the branching number,the branching angle,and contrasted the differences betweent growth characteristics among various concentrations. The results showed that,with the increasement of treatment concentration,the variation of the plant height was decreased and the stem was significantly enhanced; the branching number and the angle increased initially,and then decreased with the increasement of treatment concentration. When the concentration was 400mg·L~(-1),the root surface area increased significantly,and the numbers of roots and root system classification increased. The suitable concentration of paclobutrazol dwarfed the plant height,thickened the plant stem, promoted the plant branching,expanded the branching angle,increased the plant surface coverage; meanwhile, the suitable concentration of paclobutrazol expanded the distribution area of the underground root and increased the number of roots. Overall consideration,to improve the plant architecture of desert shrub,the appropriate application concentration of paclobutrazol is 300 ~ 400mg·L~(-1) .
中文关键词	多效唑 ; 柠条 ; 枝系构型 ; 根系构型
英文关键词	paclobutrazol Caragana korshinskii branching architecture root architecture
语种	中文
国家	中国
收录类别	CSCD
WOS类目	PLANT SCIENCES
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:6124742
来源机构	内蒙古农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/236101
作者单位	1.国际竹藤中心, 北京 100102, 中国; 2.中国林业科学研究院华北林业实验中心, 北京 102300, 中国; 3.内蒙古农业大学沙漠治理学院, 呼和浩特, 内蒙古 010018, 中国; 4.青海省水利水电勘测设计研究院, 西宁, 青海 810001, 中国
推荐引用方式 GB/T 7714	宋晓敏,原伟杰,虞毅,等. 多效唑对柠条幼苗构型特征的影响[J]. 内蒙古农业大学,2017,31(12):184-188.
APA	宋晓敏,原伟杰,虞毅,高永,党晓宏,&钱顺萍.(2017).多效唑对柠条幼苗构型特征的影响.干旱区资源与环境,31(12),184-188.
MLA	宋晓敏,et al."多效唑对柠条幼苗构型特征的影响".干旱区资源与环境 31.12(2017):184-188.