Triticale has been produced by intergeneric hybridization between

Options

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

Answer

**Step-by-Step Solution:**

1. **Understanding Intergeneric Hybridization**:
- Intergeneric hybridization refers to the process of crossing two different species from different genera. This is distinct from interspecific hybridization, which occurs between species within the same genus.

2. **Identifying the Parent Species of Triticale**:
- Triticale is a hybrid that is produced from the intergeneric hybridization of two specific plants: wheat and rye.

3. **Chromosome Numbers**:
- In this hybridization, rye (Secale cereale) has a diploid chromosome number of 2n = 14, while wheat (Triticum spp.) has a diploid chromosome number of 2n = 28.

4. **Resulting Chromosome Number in Triticale**:
- The hybrid Triticale (Triticale) has a chromosome number that is a combination of its parent species. The resulting chromosome number for Triticale is 2n = 21, which is an intermediate between the two parent species.

5. **Conclusion**:
- Therefore, Triticale is produced by intergeneric hybridization between wheat and rye.

**Final Answer**: Triticale has been produced by intergeneric hybridization between wheat (Triticum) and rye (Secale).

---