Screening of rice germplasm for blast resistance in Nigeria

Abstract. Gabriel MG, Alhasan U, Mary Y, Munsur Olufunmilayo A. 2022. Screening of rice germplasm for blast resistance in Nigeria. Asian J Agric 6: 1-6. Rice (Magnaporthe oryzae T.T. Hebert) M.E. Barr) is an important destructive disease that can lead to 80% yield loss. Germplasm responds differently fungus. This study aimed screen The four genotypes, namely Institute Research Tropical Agriculture, France (IRAT) 109, JAMILA, Federal Agriculture Oryza (FARO) 52, and FARO 66 were evaluated a completely randomized design with three replications the house Department Crop Protection, Agricultural Samaru, Data collected on plant height, number plants infected blast, seedling vigour, tillering ability, score, leaf estimated. Analysis variance showed high significant difference (P ? 0.01) vigour (0.03**) index (17.24**) while 0.05) variation was observed (3.79*). In contrast, there no > height ability. highest PCV (Phenotypic Coefficient Variance) GCV (Genotypic Variance), also broad-sense heritability blast. IRAT 109 (0.6) depicted resistance, JAMILA moderately susceptible (Blast score 4.0) 52 (7.3) (6.1) susceptible. A among genotypes implies sufficient genotype screened, suggesting progress be made following selection.