Q: 113 (SSC/NA)
question_subject:
Science
question_exam:
SSC
stats:
0,0,5,2,1,0,2
keywords:
{'wheat': [4, 1, 2, 2], 'puccinia graminis': [1, 0, 0, 0], 'couetotrichumfalcatum': [1, 0, 0, 0], 'ustilago tritici': [1, 0, 0, 0], 'ustilago maydis': [1, 0, 0, 0], 'smut': [1, 0, 1, 0]}
The smut of wheat is caused by a fungal pathogen that infects the plant. The correct answer is option 3, Ustilago tritici.
Option 1, Ustilago maydis, is not the correct answer because it is a pathogen that affects maize, not wheat. Option 2, Puccinia graminis, is not the correct answer either because it is the pathogen responsible for wheat rust, not smut.
Option 4, CoUetotrichum falcatum, is also not the correct answer because it is the pathogen that causes red rot disease in sugarcane, not smut in wheat.
Therefore, option 3, Ustilago tritici, is the correct answer as it is the specific fungus that causes smut in wheat.