IDENTIFICATION OF RESISTANT SOURCES IN GLASS HOUSE AND FIELD EVALUATION OF SOYBEAN GENOTYPES TO ANTHRACNOSE CAUSED BY COLLETOTRICHUM TRUNCATUM (SCHW.) ANDRUS AND MOORE

Abstract

Among the nineteen soybean genotypes screened by artificial inoculation with Colletotrichum truncatum, four genotypes viz., DSb 12, DSb 20, DSb 23-5 and Kalitur were found highly resistant with a disease grade of one. The eight genotypes viz., DSb1, DSb 19, DSb 21, JS 95-60, JS 97-52, TGx 1835, EC 241780 and NRC 7 showed moderately resistant reaction with disease grade of 3. The two varieties Himso 1563 and JS 335 showed highly susceptible reaction with disease severity of 9 grades. In field screening of thirteen genotypes, DSb 12 and DSb 20 were found highly resistant to the disease with a grade of one. The five genotypes viz., DSb 1, DSb 19, DSb 21, JS 95-60 and JS 97-52 are fallen under the category of moderately resistant with a disease grade of 3. The genotype JS 335 was highly susceptible to anthracnose with a maximum disease grade of nine.