Özet:
In order to study of the correlation coefficient analysis between grain yield and its components in maize hybrids
an experiment was carried out in randomized complete block design with four replications in Shahrood
Agricultural Research Station during 2006-07. The result of correlation analysis between grain yield and other
traits showed that number of grains per ear and 100 grain weights had high and positive direct effects and ear
length had positive and moderate direct effect on yield. Furthermore, ear height had low and negative direct
effect on grain yield.