Segregation Characteristics and Correlation Analysis on Plant Characters of F_(2∶3) Lines from a Normal Maize × High-oil Maize Inbred Cross

Eight plant traits of F2∶3 families which were developed from the cross between a normal maize inbred 8622 and a high-oil maize inbred GY220 cross were analyzed in spring sowing environment. The results showed that all plant traits of F1 were between the two parents or beyond the high parent. There were significant differences among F2∶3 family lines for all plant traits. All traits showed normal distributions, with obvious segregations beyond the two parents. There were significant or highly significant positive correlations between plant high and ear high, top high, leaf number above top ear, length of tassel, between ear height and tassel, between top high and TH/PH, leaf numbers above top ear, tassel length, between leaf numbers above top ear and tassel branches. While plant high was the significant or highly significantly negatively correlated with top high, TH/PH, leaf numbers above top ear.