Inheritance of Field Resistance to Sorghum Downy Mildew* Rana B.S., Anahosur K.H.1, Rao M.J. Vasudeva2, Rao V. Jaya Mohan, Parameshwarappa R.1, Rao N. Ganga Prasada2 National Research Centre for Sorghum, Rajendranagar, Hyderabad, 500030 1Present addresses: UAS, Regional Research Station, Dharwad 580005.
2 ICRISAT, Patancheru, Hyderabad 502324.
*Part XXVIII of Genetic analysis of some exotic x Indian crosses in sorghum. Part XXVII appears in this issue. Abstract Inheritance of SDM resistance was studied in a set of resistant x susceptible crosses using both quantitative and quantitative genetic analysis techninues. Segregatiod ratios in the (R x S) crosses clearly indicated the presence of three gene pairs which exhibited both complementary and duplicator types of gene interaction among them. Quantitive genetic analysis of this character indicated similar results. SDM resistance was observed to be quantitive threshold character. Top |