华北农学报2017，Vol.32Issue(z1)：160-165,6.DOI:10.7668/hbnxb.2017.S1.028
玉米区域试验品种产量与穗部性状的相关与通径分析
Correlation and Path Analysis of Yield and Ears Characters of Maize Regional Trials
摘要
Abstract
In order to analysis of maize in Shandong Province Qingdao maize regional test status and relation-ship between ears traits and yield of corn.Use of 2006-2015 in Shandong Province Qingdao maize regional test va-rieties as material,correlation and path analysis of yield and ears traits.The results showed that in the 10 year of Qingdao regional experimental station in Shandong,4 experimental groups were set up,and the number of varieties tested was 563.Variance analysis was carried out on the tested varieties of 4 groups,the yield was the highest in the maize combination with a density of 67 500 plants per ha;The correlation analysis of panicle characters in 67 500 groups showed that the correlation coefficient of the ears traits with yield,its order from large to small is:Percentage of kernels(r=0.556??) >100 kernel weight(r=0.491??) > kernels per ears(r=0.462?) > kernels per rows (r=0.372?) > rows number of ear(r=0.285?) > ear length(r =0.271?) > ear diameter(r= -0.004) >ax-is diameter(r= -0.096) >bald(r= -0.332??).Path analysis showed that ear length and seed yield had greater direct path coefficient for yield,the results showed that ear length and seed yield were the key characters that affect-ed the yield of maize,particular attention should be paid to the selection of ear length and seed yield in the maize breeding.关键词
玉米新品种/品种产量/穗部性状/相关分析/通径分析Key words
New maize varieties/Varieties yield/Ears traits/Correlation analysis/Path analysis分类
农业科技引用本文复制引用
吕莹莹,张萌,沈丹丹,张士东,李特,瞿培,张恩盈..玉米区域试验品种产量与穗部性状的相关与通径分析[J].华北农学报,2017,32(z1):160-165,6.基金项目
山东省科技发展计划项目(2014GNC110005) （2014GNC110005）
青岛农业大学高层次人才启动资金项目(631427) （631427）
