Staminal tube is found in</h2></div>

Which two layers of the anther wall contain large cells?

Pollen grains can be stored in _____

Ipomea batatas is propagated vegetatively by using __________.</h2></div>

State one advantage and one disadvantage of cleistogamy.</h2></div>

Pollen grains are </h2></div>

Leeuwenhoek discovered ............</h2></div>

Which nutrients do the pollen grains contain the most?