Multiple choice

Which disease of wheat is caused by a virus?

  1. False eyespot of wheat

  2. Wheat yellow leaf

  3. Pink seed of wheat

  4. Downy mildew of wheat

  5. Ergot of wheat
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Correct answer. Wheat yellow leaf virus is a wheat, barley, rye, and oat pathogenic virus of the family Closteroviridae. The virus proliferates in the phloem of its host plants, interfering with the plant's ability to produce sufficient chlorophyll (chlorosis), causing the leaves to yellow and the plant to die.

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