The present investigation was conducted to understand the genetics of resistance to northern leaf blight in maize through six generation mean analysis in three crosses viz., PH234 X PH84K, PHM6M X PH17H and PHM6M X PHY0Z during kharif 2016-17. The scaling tests and joint scaling tests indicated the inadequacy of additive-dominance model and showed the presence of epistatic gene effects in all the three crosses for northern leaf blight. | Genetic analysis of resistance to northern leaf blight in maize (Zea mays L.) reveals its population specificity