A) wheat
B) rice
C) groundnut
D) sugarcane
Correct Answer: C
Solution :
Tikka disease of groundnut is caused by Cercospora personata. It produces dark-brown necrotic circular spots on the leaflets. Red rot of sugarcane is caused by Colletotrichum falcatum. Loose smut of wheat is caused by Ustilago tritici. Smuts are pathogenic Basidiomycetes which possess thick-walled, black-coloured resting spores called chlamydospores, teleutospores or smut spores. Brown leaf spot of rice is caused by Helminthosporium oryzae. Bengal famine of 1942-43 was due to it.
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