The fruit of A group dehisces dorsiventrally, of B group dehisces in different ways, of dehisces into one seeded mericarps. A, B and Care respectively

Options

A. (A) Pea, Beans (B) Cotton, Coconut (C) Acacia, Anacardium
B. (A) Pea, beans (B) Cotton, Datura (C) Acacia, Castor
C. (A) Cotton, Datura, (B) Peas, rice (C) Cotton, Acacia
D. (A) Cotton, Acacia (B) Peas, Beans (C) Cotton, Aristolochia

Answer

To solve the question, we need to identify the groups A, B, and C based on the dehiscence characteristics of their fruits. Let's break down the information step by step.

### Step-by-Step Solution:

1. **Understanding Dehiscence**:
- Dehiscence refers to the splitting open of a fruit at maturity to release seeds. Different fruits have different methods of dehiscence.

2. **Group A - Dorsiventral Dehiscence**:
- The fruits in group A dehisce dorsiventrally. This means they split along the dorsal (upper) and ventral (lower) sides.
- **Examples**: Common examples of fruits that exhibit dorsiventral dehiscence are beans (Phaseolus) and peas (Pisum). These fruits have a marginal placentation where the ovules are attached along the edge of the fruit.

3. **Group B - Various Dehiscence Methods**:
- The fruits in group B dehisce in different ways. This suggests that the method of seed release varies significantly among these fruits.
- **Examples**: Cotton (Gossypium) is known for its capsules that burst open to release seeds into the air. Datura (also known as Jimsonweed) has a unique funnel-shaped fruit that also releases seeds in a different manner.

4. **Group C - One-seeded Mericarps**:
- The fruits in group C dehisce into one-seeded mericarps. This indicates that these fruits are dry and typically contain a single seed.
- **Examples**: Acacia and castor (Ricinus) produce fruits that are classified as one-seeded mericarps. In these fruits, the pericarp (the fruit wall) does not have distinct layers, and they release only one seed upon maturation.

5. **Conclusion**:
- Based on the characteristics described:
- Group A corresponds to **Peas and Beans** (dorsiventral dehiscence).
- Group B corresponds to **Cotton and Datura** (various dehiscence methods).
- Group C corresponds to **Acacia and Castor** (one-seeded mericarps).

Thus, the answer to the question is:
- A: Peas and Beans
- B: Cotton and Datura
- C: Acacia and Castor

### Final Answer:
- A: Peas and Beans
- B: Cotton and Datura
- C: Acacia and Castor