Vol. 12, Issue 5 (2023)

Author(s):
Santanu Kumar Sahoo, Indra Deo, Himanshu Prashad, Amit Kumar and Shubham Kumawat

Abstract:
The present investigation was conducted at the Norman E. Borlaug Crop Research Centre (NEBCRC), Govind Ballabh Pant University of Agriculture and Technology, Pantnagar during Kharif 2021, to investigate the genetic potential of 29 pre-breeding lines developed and maintained at GBPUA&T gene bank against bacterial leaf blight. Bacterial suspension from infected disease materials was prepared. Clip method of artificial inoculation was used. All the genotypes along with 3 checks were scored for BLB by using SES for Rice (IRRI, 1996). no genotype were found for BLB resistant. Six pre-breeding lines viz. CGIL 1303-3, CGIL 1065-3,CGIL 1382-1,CGIL 1072-3,CGIL 861-1 and CGIL 853-3 were found to be resistant to bacterial leaf blight having less than five percent infected area. 12 genotypes viz. CGIL 944-3,CGIL 644-2,CGIL 622-2,CGIL 865-3,CGIL 908-3,CGIL 919-3,CGIL 918-3,CGIL 801-3,CGIL 718-2,CGIL 856-3,CGIL 648-2 and CGIL 815-3showed moderately resistant to BLB. Five, four and two genotypes were found to be moderately susceptible, susceptible and highly susceptible, respectively.