Multiple choice

The fungus(fungi) responsible for ‘Loose smut’ of barley is/are A. Ustilago tritici B. Ustilago segetum C. Pyrenophora wirreganensis

  1. Only A

  2. Only B

  3. Only C

  4. Both A and B

  5. Both B and C
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Infected heads emerge as a mass of dark brown powdery spores is called loose smut. A fungus, Ustilago tritici, causes loose smut disease in barley. Covered smut is caused by the fungus Ustilago segetum var. hordei in which the heads that emerge are dark in colour and smut balls take the place of the grain. Wirrega blotch of leaf is caused by the fungus Pyrenophora wirreganensis.

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