Evaluation of Frenchbean Varieties for Resistance to Colletotrichum lindemuthianum Races Causing Bean Anthracnose

Abstract

Evaluation of twenty one French bean varieties against five pathogenic races of Colletotrichum lindemuthianum namely 1, 2, 17, 515, 615 identified as per Standard International differential set and representing different bean cultivation areas across five districts of Himachal Pradesh was undertaken. In vivo evaluation (using 0-5 point scale, CIAT) using seedling dip method, 12, 9 and 5 accessions of French beans were found resistant to race 515, 2 and 17, respectively. Whereas two genotypes each were found resistant to race 1 and 615. In particular, variety Surya and HABF-2 resistant against 4 races followed by MFB-3 and IVRF-3 resistant against 3 races each appeared to be excellent sources of resistance.