Q. The pollen grains lose their viability in 30 minutes in

 1446  196 NTA AbhyasNTA Abhyas 2020Sexual Reproduction in Flowering Plants Report Error

Solution:

In some cereals such as rice and wheat, pollen grains lose viability within 30 minutes of their release, and in some members of Rosaceae, Leguminosae, and Solanaceae, they maintain viability for months.