山东农业科学2016，Vol.48Issue(8)：15-18,4.DOI:10.14083/j.issn.1001-4942.2016.08.004
黄淮北片小麦参试品种（系）产量构成因素及其相互关系分析
Analysis on Yield Components and Their Correlations of Wheat Varieties (Lines)in North Huanghe -Huaihe Region
摘要
Abstract
In order to provide references for high -yielding breeding,the variation trend of yield charac-ters and their correlations were studied based on the data collected from the wheat varieties (lines)in the north Huanghe -Huaihe regional tests from 2006 to 2015.The results showed that the yield and spike number per hectare and 1 000 -grain weight showed increasing trends year by year,while the grains per spike showed decreasing trend.The 1 000 -grain weight showed the largest contribution to yiled,but had little effects on the other yield components.The spike number per hectare showed significantly positive correlation with yield and very significantly negative correlation with grains per spike.Based on the above results,the ecological conditions in the north Huanghe -Huaihe region and the current growing conditions,wheat breeding should foucus on increasing the 1 000 -grain weight to about 50 g,maitain the population spike number as 6.00 ~6.50 million per hectare and moderatedly increasing the grains per spike to 38 ~40.关键词
小麦/产量构成因素/相关分析/通径分析Key words
Wheat/Yield components/Correlation analysis/Path analysis分类
农业科技引用本文复制引用
高国良,陈贵菊,王福玉,刘兴强,王秋云,尹逊利..黄淮北片小麦参试品种（系）产量构成因素及其相互关系分析[J].山东农业科学,2016,48(8):15-18,4.基金项目
山东省小麦产业技术体系济宁试验站专项（SDATT －04－022－15）；山东省自主创新重大关键技术项目“小麦增产科技支撑计划”（2014GJJS0201－4－8）；2014年济宁市农业科学研究院科技发展计划项目 （）
