Question

Match the LIST-I with LIST-II. LIST-I: A. Loose smut, B. Karnal bunt, C. Powdery Mildew, D. Leaf rust. LIST-II: I. Erysiphe graminis tritici, II. Puccinia recondita tritici, III. Tilletia indica, IV. Ustilago nuda tritici.

• A. A-II, B-IV, C-I, D-III
• B. A-IV, B-III, C-I, D-II
• C. A-IV, B-I, C-III, D-II
• D. A-I, B-II, C-IV, D-III

Hint:

Loose smut is caused by Ustilago nuda tritici, Karnal bunt by Tilletia indica, powdery mildew by Erysiphe graminis tritici, and leaf rust by Puccinia recondita tritici.

Answer 1

The Correct Option is B

Concept:
Wheat is affected by several fungal diseases. Each disease has a specific causal pathogen.

Step 1: Match Loose smut.
Loose smut of wheat is caused by: \[ \textit{Ustilago nuda tritici} \] So, \[ A \rightarrow IV \]

Step 2: Match Karnal bunt.
Karnal bunt of wheat is caused by: \[ \textit{Tilletia indica} \] So, \[ B \rightarrow III \]

Step 3: Match Powdery mildew.
Powdery mildew of wheat is caused by: \[ \textit{Erysiphe graminis tritici} \] So, \[ C \rightarrow I \]

Step 4: Match Leaf rust.
Leaf rust of wheat is caused by: \[ \textit{Puccinia recondita tritici} \] So, \[ D \rightarrow II \] Therefore, the correct matching is: \[ A-IV,\ B-III,\ C-I,\ D-II \] \[ \therefore \text{Correct Answer is (B)} \]