Vol. 11, Issue 10 (2022)

Author(s):
Diwakar Reddy SE and NG Hanamaratti

Abstract:
In the present study, we evaluated and identified sorghum backcross populations for shoot fly resistance in augmented block design at AICRP on Sorghum, MARS, UAS, Dharwad, during late Kharif 2021 using interlard fishmeal technique. A total of 304 BC2F4 backcrosses introgressed lines (ILs) were obtained by crossing 3 susceptible recurrent parents viz., SPV2217, BJV44, and SVD0806 with 2 shoot fly resistant donors viz., J2614-5 and J2799. The screening results revealed 37 highly resistant ILs in six crosses (SPV2217 x J2614-5, SPV2217 x J2799, BJV44 x J2614-5, BJV44 x J2799, SVD0806 x J2614-5, and SVD0806 x J2799). These introgressed lines exhibited a comparatively lower number of eggs per plant, minimum dead heart percentage, high glossiness and high vigour. These lines would be greater assets in future shoot fly tolerance breeding programs followed by further confirmation study.