Vol. 12, Issue 11 (2023)

Author(s):
GR Vishwas Gowda, KB Yadahalli, PV Patil, NG Hanamaratti and TT Bandiwaddar

Abstract:
Sorghum (Sorghum bicolor) is an important cereal crop grown in semiarid, subtropical, tropical and temperate regions and ranks fifth in worldwide cereal crop production. Rust of sorghum (P. purpurea) is an important emerging disease in most of the sorghum growing areas of the world, which can increase the susceptibility to other pathogens. Host plant resistance plays a pivotal role in disease management within crop improvement programs. Employing resistant cultivars stands out as a straightforward, cost-effective, and highly efficient strategy. Out of 305 sorghum genotypes screened, none of the genotypes showed highly resistant reaction or immune reaction, only 1 showed resistant reaction (E-4), 16 genotypes showed moderately resistant reaction (ICSV 745, SVD 1327R, KDSL 20, ICSV 17003, CB 33, 401B, CSV 20, SVD 1221R, SVD 1549R, SVD 1564R, SVD 1565R, SVD 1356R, SVD 1423R, ICSR 13042, EP 65, Dambal local), 30 showed moderately susceptible, 170 recorded susceptible reactions and remaining 88 were found highly susceptible reaction under natural epiphytotic condition. Further this data can be used to develop resistant varieties and hybrids in sorghum to rust disease.