Virulence patterns of Colletotrichum truncatum isolates causing soybean anthracnose disease and identification of resistance sources.

ABSTRACT: Anthracnose disease caused by Colletotrichum truncatum is a major disease in soybean in India. In the current study, a total of sixty isolates of C. truncatum were tested for their virulence against three soybean genotypes viz., EC 18,596, JS 20-34, and JS 95 - 60. Among them, based on AUDPC (Area Under Disease Progress Curve), CT-18 (OP133629) was found to be the most virulent isolate, followed by CT-12 (OR405122), CT-48 (OR975577) and CT-2 (OR975570). Through pooled ANOVA (Analysis of variance), it was found that there were significant Isolate (I) × Genotype (G) interactions (p < 0.001). Further, a total of ninety-five soybean genotypes were screened against CT-18 (OP133629), where no genotype was found highly resistant. However, seven genotypes viz., NRC 130 (DS = 1.80), NB 208 (DS = 1.

SUBMITTER: Mandloi S 

PROVIDER: S-EPMC12613343 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature