The process in which haploid embryo is formed from haploid egg without fertilization is called :

Options

A. apospory
B. apogamy
C. agamospermy
D. vegetative reproduction

Answer

To solve the question regarding the process in which a haploid embryo is formed from a haploid egg without fertilization, we will analyze the provided options step by step.

### Step-by-Step Solution:

1. **Understanding the Question**:
The question asks for a specific process where a haploid embryo is formed from a haploid egg without the involvement of fertilization.

2. **Analyzing the Options**:
- **Option 1: Apospory**:
- Apospory refers to the formation of a gametophyte directly from the sporophyte without meiosis. This does not involve the formation of an embryo, so this option is incorrect.

- **Option 2: Apogamy**:
- Apogamy is when a diploid embryo is formed from the female gametophyte, excluding the egg cell, without fertilization. This option also does not match the requirement as we are looking for a haploid embryo.

- **Option 3: Agamospermy**:
- Agamospermy is the process where an embryo is formed without normal meiosis and syngamy (fertilization). Specifically, in non-recurrent agamospermy, a haploid embryo can develop parthenogenetically from a haploid egg. This matches the requirement of the question.

- **Option 4: Vegetative Reproduction**:
- Vegetative reproduction refers to asexual reproduction in plants where new individuals grow from fragments of the parent plant. This is unrelated to the formation of embryos from haploid eggs, making this option incorrect.

3. **Conclusion**:
The correct answer is **Agamospermy**, as it describes the process in which a haploid embryo is formed from a haploid egg without fertilization.

### Final Answer:
The process in which a haploid embryo is formed from a haploid egg without fertilization is called **Agamospermy**.

---