What is the significance of double fertilization ?

Explanation

Significance of double fertilisation. 1. Double fertilization ensures that the nutritive tissue is formed only when the formation of embryo has taken place by fertilization of the egg. Angiosperms are, therefore, economical and more specialized as compared to gymnosperms where a large nutritive female gametophyte is formed long before fertilization. If fertilization fails, the energy spent on forming it shall go waste.
2. Double fertilization provides the characteristics of the male plant as well to the nutritive tissue.
3. In angiosperms the growth of the female gametophyte or embryo sac stops at the 8-nucleate or 7-celled stage. The second act of fertilization called vegetative fertilization, provides a a nutritive tissue.
4. Due to its triploid nature, endosperm shows high physiological activity grows faster and accumulates nutrients.