Which one of the following statements is correct?

Options

A. Hard outer layer of pollen is called intine
B. Sporogenous tissue is haploid
C. Endothecium produces the microspores
D. Tapetum nourishes the developing pollen

Answer

To solve the question, we need to analyze each of the four statements provided and determine which one is correct.

### Step-by-Step Solution:

1. **Statement Analysis**:
- **Statement 1**: "The hard outer layer of pollen is called entine."
- **Analysis**: This statement is incorrect. The hard outer layer of the pollen grain is called **exine**, while the inner layer is called **intine**.

- **Statement 2**: "Sporogenous tissue is haploid."
- **Analysis**: This statement is also incorrect. The sporogenous tissue is **diploid** and is found in the microsporangium. It undergoes meiosis to produce haploid microspores.

- **Statement 3**: "Endothelium produces the microspores."
- **Analysis**: This statement is incorrect. The endothelium is a layer of the microsporangium, but it does not produce microspores. Microspores are produced from the sporogenous tissue through meiotic division.

- **Statement 4**: "Tapetum nourishes the pollen grain."
- **Analysis**: This statement is correct. The tapetum is the innermost layer of the microsporangium and provides nourishment to the developing pollen grains.

2. **Conclusion**: After analyzing all four statements, the correct statement is **Statement 4**: "Tapetum nourishes the pollen grain."

### Final Answer:
The correct statement is: **"Tapetum nourishes the pollen grain."**

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