Department of Plant Breeding, G. B. Pant University of Agriculture and Technology, Pantnagar
1Present address: International Institute of Tropical Agriculture, Tbadan, NIGERIA.
+Part of a thesis submitted by senior author in partial fulfilment of the requirements of the Ph.D. degree of GBPUA & T, Pantnagar.
The present investigation was undertaken to study the genetic architecture of resistance to brown stripe downy mildew of maize under artificial epiphytotic conditions. Different gene effects were estimated for 28 crosses obtained from 8 inbreds. It was found that additive, dominance and epistasis effects were all important in majority of the crosses; however, additive effects were found to be more in magnitude than dominance and epistatic effects. Based on available data some crosses have been chosen and it has been suggested how various gene effects can be successfully exploited in these crosses.
