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Which of the following is internally seed-borne disease?
Question

Which of the following is internally seed-borne disease?

A.

Covered smut of Barley

B.

Loose smut of Wheat

C.

Grain smut of Jowar

D.

Smut of Bajra

Correct option is B

✅ (b) Loose smut of Wheat: • Caused by Ustilago tritici, this smut is internally seed-borne. • The fungus lives dormant inside the embryo of infected seeds and germinates along with the plant. • Managed through seed treatment with systemic fungicides.
❌ (a), (c), (d): • These are externally seed-borne or soil-borne smuts.

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