Choose incorrect statement w.r.t. Rhizophora.

Options

A. Shows precocious seed germination
B. Develop respiratory roots
C. Grow in saline marshy habitat
D. Show seed dormancy

Answer

To solve the question "Choose the incorrect statement with respect to Rhizophora," we will analyze the characteristics of Rhizophora step by step.

### Step-by-Step Solution:

1. **Identify the Characteristics of Rhizophora**:
- Rhizophora is a genus of mangrove trees that thrive in saline environments. They are adapted to grow in coastal intertidal zones.

2. **Respiration Mechanism**:
- Rhizophora trees have specialized roots known as pneumatophores. These roots extend above the waterlogged soil and help in gaseous exchange, allowing the plant to respire in a saline habitat.

3. **Seed Germination**:
- Rhizophora exhibits a type of germination known as vivipary. This means that the seeds germinate while still attached to the parent plant. This adaptation helps the seedlings survive in harsh conditions.

4. **Seed Dormancy**:
- Unlike many other plant species, Rhizophora does not exhibit seed dormancy. The seeds germinate immediately after they are mature, which is a key characteristic of viviparous plants.

5. **Evaluate the Statements**:
- Statement 1: "Precocious seed germination" - True, as Rhizophora seeds germinate while still attached to the parent plant.
- Statement 2: "Develops respiratory roots" - True, as they have pneumatophores for respiration.
- Statement 3: "Grow in saline marshy habitat" - True, as they are mangrove trees adapted to saline conditions.
- Statement 4: "Do not show seed dormancy" - This statement is incorrect, as Rhizophora does not exhibit seed dormancy.

### Conclusion:
The incorrect statement with respect to Rhizophora is the one that claims they do not show seed dormancy.

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