Triploid tissue is

Solution(By Examveda Team)

Triploid tissue is Endosperm in Maize/Wheat/Lily.
The endosperm is a tissue produced inside the seeds of most flowering plants following double fertilization.
It is triploid in most species, like wheat, maize and lily, etc. which may be auxin-driven.
It surrounds the embryo and provides nutrition in the form of starch, though it can also contain oils and protein. This can make endosperm a source of nutrition in animal diets. For example, the wheat endosperm is ground into flour for bread.