Apomixis and Polyembryony:-

• Apomixis is the production of seeds without fertilisation. E.g., some species of Asteraceae and grasses.
• Apomixis is a form of asexual reproduction that mimics sexual reproduction.

Development of apomictic seeds:

• In some species, the diploid egg cell is formed without reduction division and develops into the embryo without fertilisation.
• In many species (e.g. many Citrus & Mango varieties) some of the nucellar cells surrounding the embryo sac divide, protrude into the embryo sac and develop into the embryos. In such species, each ovule contains many embryos. The occurrence of more than one embryo in a seed is called polyembryony.