干旱区生态环境知识资源中心(Arid): 极度缺水条件下玉米穗部性状对产量的影响

Arid

	极度缺水条件下玉米穗部性状对产量的影响
其他题名	Study on maize yield and its ear characters under water-limited conditions
	李兴 1; 程满金 2; 王勇 1; 勾芒芒 2
来源期刊	中国农业大学学报
ISSN	1007-4333
出版年	2010
卷号	15 期号:4 页码:8-12
中文摘要	试验地点位于我国典型的黄土高原半干旱丘陵山区,由于该区受特殊的地理、地形以及水文气象条件的影响,使得雨水集蓄利用成为解决该区农牧业生产的主要出路. 本试验通过有限补充灌溉的方式,采用基于因子分析的主成分提取方法,将玉米穗部性状总结为3个主成分,并分析了各主成分的意义以及在不同补灌条件下对玉米穗部性状的影响. 结果表明:影响玉米产量的限制性因子为穗粒重和穗重,并且在主成分分析中,因子载荷分别达到了0.974 8和0.965 1. 拔节期补充灌溉处理的穗粒重较不补灌提高62.2%77.8%,拔节期补充灌溉能够更大程度地提高穗粒重和穗重并减少秃尖长度,研究为集雨补灌旱作区农业节水增产提供了一定的理论依据
英文摘要	The experiment site is located in the typical semi-arid mountain area of the Loess Plateau in China. Subjected to the adverse effects of special geography, topography and hydro-meteorological conditions, collection and utilization of the rainwater is one of the major solution to agricultural and livestock production in this region. The experiment is performed under different supplementary irrigation conditions. The ear characters are grouped into three major components by using principal component analysis method. Meantime the meaning of all the main components and the impact of corn ear traits in different supplementary irrigation conditions are analyzed. The results showed that ear kernel weight and ear weight are limiting factors affecting maize yield and the factor loading are 0. 974 8 and 0. 965 1 respectively. Ear kernel weight of supplemental irrigation is 62.2% - 77.8% higher than that of ear kernel weight under no irrigation condition at jointing stage. Test showed that supplemental irrigation and increasing the amount of supplementary irrigation within a certain extent can increase ear kernel weight,ear weight and reduce the length of the bald results will provide a theoretical basis for water saving and increasing yield in rainfed farming region
中文关键词	穗部性状 ; 集雨补灌 ; 主成分分析
英文关键词	ear characters supplemental irrigation of harvested rainwater analysis of principal components
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURAL ENGINEERING
WOS研究方向	Agriculture
CSCD记录号	CSCD:3910750
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/225932
作者单位	1.内蒙古师范大学内蒙古节水农业工程研究中心, 呼和浩特, 内蒙古 010022, 中国; 2.内蒙古自治区水利科学研究院, 呼和浩特, 内蒙古 010020, 中国
推荐引用方式 GB/T 7714	李兴,程满金,王勇,等. 极度缺水条件下玉米穗部性状对产量的影响[J],2010,15(4):8-12.
APA	李兴,程满金,王勇,&勾芒芒.(2010).极度缺水条件下玉米穗部性状对产量的影响.中国农业大学学报,15(4),8-12.
MLA	李兴,et al."极度缺水条件下玉米穗部性状对产量的影响".中国农业大学学报 15.4(2010):8-12.