The Oilseed Brassica
is second oilseed crop after groundnut in terms of area and
production in India. These crops have been known to be attacked by several
pathogens resulting in huge losses in yield. Alternaria
brassicae (Berk) Sacc. causing Alternaria
Blight is the major pathogen of the crop. A field experiment was
conducted during rabi season of 2011–12 and
2012–13 at Pantnagar, Uttrakhand in augmented
block design to study the evaluation of 480 B.juncea accessions
for resistance/tolerance against Alternaria Blight
disease to search resistant/tolerant sources or improved materials as such
which have high yield potential. Study found none of the accession showed
resistant reaction towards Alternaria blight on leaves during 2011–12 and 2012–13
crop seasons. Accession no. 491314 showed highly resistant
reaction with minimum disease index on pod (12.45%) during 2011–12 cropping
season.