Following steps are involved in the process of sexual reproduction in plant:

(i) The male reproductive part of a flower is called stamen which consists a filament and an anther. Anther contains pollen grains.

(ii) The female reproductive part of a flower called carpel makes the female gametes. These gametes are present in the ovules and are called ova or egg.

(iii) The male gamete in the pollen grain fuses with the female gamete in the ovule to form a zygote (fertilised egg cell). This process of fusion is known as fertilisation.

(iv) The zygote grows within ovule and becomes seed.

(v) The seed produces new plant on germination.