Give a concise account on steps involved in fertilization of an angiosperm plant.

Explanation

1. Germination of pollen grain on stigma.
2. Formation of pollen tube in stigma.
3. Growth of pollen tube inside the style.
4. Direction of pollen tube towards the micropyle of ovule.
5. Entry of pollen tube into the synergid of embryo sac.
6. Discharge of male gametes from the pollen tube .
7. Fusion of male gamete with egg cell (syngany)
8. Fusion of second male gamete with polar nuclei (triple fusion/ double fertilisation)