The hollow foliar structure in a wheat embryo that encloses the shoot apex and a few leaf primordia is called:

Options

A. Coleoptile
B. Coleorrhiza
C. Epicotyl
D. Hypocotyl

Answer

**Step-by-Step Solution:**

1. **Understanding the Structure of Wheat Embryo:**
- The wheat embryo is a part of the seed and consists of various structures that play different roles in the development of the plant.

2. **Identifying the Key Components:**
- The wheat embryo has a shoot apex which is the growing tip of the plant, and it also has leaf primordia which are the early stages of leaf development.

3. **Recognizing the Hollow Foliar Structure:**
- In monocots like wheat, there is a specific structure that encloses the shoot apex and the leaf primordia. This structure is crucial for protecting the developing shoot.

4. **Naming the Structure:**
- The hollow foliar structure that encloses the shoot apex and leaf primordia in a wheat embryo is called the **Coleoptile**.

5. **Differentiating from Other Structures:**
- It is important to differentiate the coleoptile from other structures such as:
- **Cauliorhiza**: This structure is associated with root development.
- **Apicotyl**: This is the region from where shoot formation signals begin.
- **Hypocotyl**: This is related to the initiation of root formation.

6. **Conclusion:**
- Therefore, the correct answer to the question is that the hollow foliar structure in a wheat embryo that encloses the shoot apex and a few leaf primordia is called **Coleoptile**.

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