Evaluation of Multiple Resistance in Sorghum Genotypes Against Shoot Fly, Atherigona Soccata (Rondani) and Stem Borer Chilo Partellus (Swinhoe)

The experiments were conducted during kharif 2007 and 2008 to evaluate resistance for shoot fly Atherigona soccata (Rondani) and stem borer Chilo partellus (Swinhoe) at Directorate of Sorghum and Research, Hyderabad. The trial comprised of 35 entries along with one resistant check each for shoot fly (IS 18551), stem borer (IS 2205) and susceptible check (DJ 6514) and three improved lines viz., ICSV 700, 705 and 745. Based upon hierarchical clustering considering parameters viz.; shoot fly oviposition, shoot fly dead-hearts and stem borer induced dead-hearts, the entries were classified into resistant, moderately resistant and susceptible. Eighteen entries viz., AKENT 3, KC 2, GSSV 251, SR 1247-1, SR 1577-1, AKENT 10, KC 4, NSS 104, SR 1532, SEH 03, ST 30 x M 14, GJ 38, ICSV 700, IS 2205, KC 1, IS 2312, ICSV 705 and IS 18551 were resistant and fifteen entries viz., SR 1992, GFS 206, GFS 252, ICSV 745, SEH 01, GFS 142, SEH 02, KC 3, AKENT 7, SR 1333, CSH 9, SR 713-5, SR 770-2, SR 806 and SEH 04 were moderately resistant. These entries can be further utilized in developing multiple pest resistant lines with desirable agronomic traits.