Abstract: In order to analysis of maize in Shandong Province Qingdao maize regional test status and relationship between ears traits and yield of corn.Use of 2006-2015 in Shandong Province Qingdao maize regional test varieties 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) > axis 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 affected the yield of maize,particular attention should be paid to the selection of ear length and seed yield in the maize breeding.

Key words: New maize varieties, Varieties yield, Ears traits, Correlation analysis, Path analysis

CLC Number: 

• S513.01