Ostrinia furnacalis Guenee is the most important pest of Zea may L. Little is known about combining ability for stem damage to this insect. The objective of this study was to estimate of resistance to stem damage by the Oriental corn borer. The importance
Two-spotted spider mite (Tetranychiis urticae K.) can cause severe yield losses in maize (Zea mays L.). Diallel crosses (28 F1) and generation mean analysis were analyzed to determine the type of resistance to mite. In diallel crosses, Mean square for GCA