The pollen viability period of rice and pea respecitvely is

Options

A. 30 minutes and several months
B. several months and 30 minutes
C. few days and few months
D. few days in both the cases

Answer

To solve the question regarding the pollen viability period of rice and pea, we can follow these steps:

### Step-by-Step Solution:

1. **Understand Pollen Viability**:
- Pollen viability refers to the duration during which pollen grains remain capable of fertilizing the ovule. This is crucial for successful reproduction in flowering plants.

2. **Identify the Pollen Viability of Rice**:
- Research indicates that the pollen viability of rice (Oryza sativa) is relatively short. It is generally around **30 minutes**. This means that after this period, the pollen grains lose their ability to fertilize the ovule.

3. **Identify the Pollen Viability of Pea**:
- In contrast, the pollen viability of pea (Pisum sativum) is significantly longer. It can last for **several months**. This extended viability allows for a greater chance of successful fertilization over time.

4. **Summarize the Findings**:
- Based on the information gathered, we conclude that the pollen viability period of rice is approximately **30 minutes**, while that of pea is **several months**.

5. **Select the Correct Option**:
- Given the options provided in the question, the correct answer is that rice has a pollen viability of **30 minutes** and pea has a pollen viability of **several months**.

### Final Answer:
The pollen viability period of rice and pea respectively is **30 minutes for rice and several months for pea**.

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