Question

Pollen grains of cotten and many other species germinate readily on the stigma, but burst rapidly if floated upon pure water or a dilute sugar solution. explain

Answer 1

If pollen grains of cotton and many other species germinate readily on the stigma but burst rapidly if floated upon pure water or a dilute sugar solution, then this happened because of the skills the stigma has. The stigma helps the germination of the pollen.