您的位置:首页  > 论文页面

玉米茎叶夹角与根系入土角度相关性研究

发表时间:2015-11-15  浏览量:2155  下载量:839
全部作者: 王聚辉,程子祥,修文雯,蒋迁,谢瑞芝,张凤路
作者单位: 河北农业大学农学院,河北省作物生长调控实验室;中国农业科学院作物科学研究所
摘 要: 为探明玉米根系形态与其地上部茎叶夹角的关系,以不同年代的玉米种质为材料,采用测渗仪方法系统研究在充足灌水条件下玉米的茎叶发育及其产量性能,并在收获期测定各品种的不同根层根系入土角度。研究表明,随着品种的不断更替,玉米产量不断提高,叶片的夹角逐渐缩小,根系的平均下扎角度也逐渐减小,二者呈高度正相关;玉米地上地下构型的改变有利于密植高产群体的创建。研究结果对指导玉米育种和节水高产栽培实践具有重要意义。
关 键 词: 作物栽培学;玉米;叶片夹角;根系角度;不同年代品种;产量
Title: Study on correlation between maize leaf angle and root penetration angle
Author: WANG Juhui, CHENG Zixiang, XIU Wenwen, JIANG Qian, XIE Ruizhi, ZHANG Fenglu
Organization: Key Laboratory of Crop Growth Regulation of Hebei Province, College of Agronomy, Agricultural University of Hebei; Institute of Crop Sciences, Chinese Academy of Agricultural Sciences
Abstract: In order to understand the relationship between maize root morphology and aboveground leaf angle, the growth and development of maize stem and leaf and grain yield of the varieties from different eras were studied by lysimeter method under enough water irrigation conditions. The root penetration angles of different root layers of different varieties were measured at harvest time. The results showed that, the yield of maize increased continuously with the changes of variety, leaf angle was reduced gradually, the average root penetration angles were also reduced gradually, and they showed high positive correlations. The changes of maize configurations both above and under ground were benefit for creating a population with high density and high yield. The results of this study have important significance to guide the water saving and high yield maize breeding and cultivation practices.
Key words: crop cultivation; maize; leaf angle; root angle; varieties of different eras; yield
发表期数: 2015年11月第21期
引用格式: 王聚辉,程子祥,修文雯,等. 玉米茎叶夹角与根系入土角度相关性研究[J]. 中国科技论文在线精品论文,2015,8(21):2216-2222.
 
0 评论数 0
暂无评论
友情链接