Triticale is developed through intergeneric hybridisation of:

Options

A. wheat and rye
B. maize and rice
C. wheat and rice
D. wheat and barley

Answer

### Step-by-Step Solution:

1. **Understand the Concept of Intergeneric Hybridization**:
- Intergeneric hybridization refers to the process of crossing plants from two different genera within the same family. This is important for understanding how triticale was developed.

2. **Identify the Genera Involved in Triticale Development**:
- Triticale is a hybrid that was created by crossing two specific genera: Triticum and Secale.

3. **Know the Relation of These Genera**:
- Triticum is the genus that includes wheat, while Secale is the genus that includes rye. This relationship is crucial in identifying the correct answer.

4. **Determine the Family of These Genera**:
- Both Triticum and Secale belong to the same family, which is the Poaceae family (commonly known as the grass family).

5. **Select the Correct Answer from the Options Provided**:
- The question provides multiple choices. The correct answer, based on the information gathered, is that triticale is developed through the intergeneric hybridization of wheat (Triticum) and rye (Secale).

### Final Answer:
Triticale is developed through intergeneric hybridization of wheat and rye.