Primary host of Puccinia graminis triticl causing rust in

Options

A. Rice
B. Wheat
C. Grass
D. Bamboo

Answer

**Step-by-Step Solution:**

1. **Identify the Pathogen:** The question refers to Puccinia graminis tritici, which is a type of fungus that causes rust disease.

2. **Understand the Nature of the Fungus:** Puccinia graminis tritici is classified as a heteroecious fungus. This means it requires two different host plants to complete its life cycle.

3. **Determine the Hosts:** The two hosts for Puccinia graminis tritici are:
- Primary host: Wheat (Triticum spp.)
- Secondary host: Barberry (Berberis spp.)

4. **Focus on the Primary Host:** The question specifically asks for the primary host of Puccinia graminis tritici that causes rust. In this case, the primary host is wheat.

5. **Conclude the Answer:** Therefore, the primary host of Puccinia graminis tritici causing rust is wheat.

**Final Answer:** Wheat (Triticum spp.)

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