Disease reaction of Indian mustard (Brassica juncea L.) genotypes against foliar disease Alternaria blight

In the present investigation 151 Indian mustard genotypes were screened in infected field against major disease of Indian mustard (Brassica sp.) these screening was not found immune and resistance against Alternaria blight. Six genotypes have found moderately resistance viz., Consult-1, BM-2, CRL-1359-18-19 BLM-2-5, B-272, CSR-943 with disease severity of 5-10% respectively, were rated as moderately susceptible were found 38 genotypes with disease severity 11-25%.106 genotypes were marked as susceptible in which disease severity was found to be 26 to 50%.The highly susceptible only one genotypes was found to be >50 present with disease severity respectively.