in which of the following plants, triple fusion and double fertillization was discovered?

Options

A. Portulaca & Cucurbit
B. Lillium & Fritillaria
C. Triticum & Lily
D. Fritillaria & Colocasia

Answer

To solve the question regarding the discovery of triple fusion and double fertilization in plants, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Concepts**:
- **Triple Fusion**: This process involves the fusion of one male gamete with two polar nuclei in the embryo sac, resulting in a triploid structure known as the primary endospermic nucleus (PEN). This structure provides nutrition to the developing embryo.
- **Double Fertilization**: This is a characteristic feature of angiosperms where one male gamete fertilizes the egg cell to form the zygote, and another male gamete fuses with the two polar nuclei to form the PEN.

2. **Identifying the Scientists**:
- The discovery of triple fusion was made by a scientist named Nawaz Sheen, who was awarded a Nobel Prize for this work.
- The discovery of double fertilization was attributed to Guignard, who also received a Nobel Prize for his contributions.

3. **Determining the Plants**:
- Nawaz Sheen observed triple fusion in the **Lilium** plant.
- Guignard studied double fertilization in the **Fritillaria** plant.

4. **Conclusion**:
- Based on the discoveries, we can conclude that both processes were first observed in the plants mentioned above. The correct answer to the question is the **Fritillaria** plant, where double fertilization was discovered.

### Final Answer:
The correct answer is **Fritillaria**.

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