The events in pollen- pistil interaction includes all, except

Options

A. Pollen deposition on the stigma until pollen tubes reach the ovary.
B. Release of pollen from one flower to the formation of pollen tubes.
C. Pollen deposition on the stigma until the formation of pollen tubes.
D. Pollen deposition on the stigma intil pollen tubes the ovule

Answer

To solve the question regarding the events in pollen-pistil interaction, we will analyze each option provided and determine which one does not fit within the context of pollen-pistil interaction.

### Step-by-Step Solution:

1. **Understand Pollen-Pistil Interaction**:
Pollen-pistil interaction is a crucial process that occurs during fertilization in flowering plants. It involves several steps that facilitate the transfer of pollen from the male reproductive part to the female reproductive part.

2. **Evaluate Each Option**:
- **Option 1**: "Pollen deposition on stigma until pollen tube reaches the ovary."
- This statement is correct. Pollen grains are deposited on the stigma, and they develop a pollen tube that grows down the style to reach the ovary.

- **Option 2**: "The release of pollen from one flower to the formation of pollen tube."
- This statement is also correct. This describes the process of cross-pollination, where pollen is transferred from one flower to another, leading to pollen tube formation.

- **Option 3**: "Pollen deposition on stigma until the formation of pollen tube."
- This statement is correct as well. Pollen grains remain on the stigma until they germinate and form a pollen tube.

- **Option 4**: "Pollen deposition on stigma and reach the pollen tube the ovule."
- This statement is incorrect. While pollen does deposit on the stigma, the pollen tube does not directly reach the ovule. Instead, it grows down to the ovary and then to the egg cell within it.

3. **Identify the Incorrect Statement**:
Based on the evaluation, the fourth option is the one that does not accurately describe an event in pollen-pistil interaction. The pollen tube does not reach the ovule directly; it reaches the egg cell within the ovule.

### Final Answer:
The events in pollen-pistil interaction include all, except: **"Pollen deposition on stigma and reach the pollen tube the ovule."**

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