Question

why desired pollen grains used on stigma on artificial hybridisation

Answer 1

Pollination is the process on which plants depend to transfer pollen grains from anther to stigma. It can be either cross-pollination or self-pollination, and their results vary. All pollinations will not lead to a successful fertilization because of a successful fertilization pistil of a flower has to recognize its right pollen of same species. In other words, pollen and stigma should be compatible. Incompatibility may lead to rejection of pollen. This situation is undesirable, especially in commercial crop production. Thus, artificial hybridization was developed.

MARK BRAINLIEST...