Maturation of anthers and stigma at the same times is

Options

A. Allogamy
B. Xenogamy
C. Homogamy
D. Dichogamy.

Answer

To solve the question "Maturation of anthers and stigma at the same time is", we will analyze the provided options and determine which one correctly describes this phenomenon.

### Step-by-Step Solution:

1. **Understanding the Terms:**
- **Anthers:** The part of the stamen that produces pollen.
- **Stigma:** The part of the pistil that receives pollen.

2. **Analyzing the Options:**
- **Option 1: Allogamy**
- Definition: Allogamy refers to the transfer of pollen from the anther of one flower to the stigma of another flower, which can be on the same plant or a different plant.
- Conclusion: This option is incorrect because it does not involve the maturation of anthers and stigma at the same time.

- **Option 2: Xenogamy**
- Definition: Xenogamy is the transfer of pollen from the anther of a flower to the stigma of another flower on a different plant of the same species.
- Conclusion: This option is also incorrect as it does not imply simultaneous maturation of anthers and stigma.

- **Option 3: Homogamy**
- Definition: Homogamy occurs when both the anther and stigma of a flower mature at the same time, allowing for self-pollination.
- Conclusion: This option is correct because it directly states that anthers and stigma mature simultaneously.

- **Option 4: Dichogamy**
- Definition: Dichogamy is the condition where the male and female reproductive parts mature at different times to promote cross-fertilization.
- Conclusion: This option is incorrect since it involves different maturation times.

3. **Final Answer:**
- The correct answer to the question is **Option 3: Homogamy**, as it describes the condition where the maturation of anthers and stigma occurs simultaneously.