In some members of which of the following pairs of families, pollen grains retain their viability for months after release ? (1) Poaceae ; Solanaceae (2) Rosaceae ; Leguminosae (3) Poaceae ; Rosaceae (4) Poaceae ; Leguminosae
Option 2) In dicot families like Solanaceae, Rosaceae and Leguminosae the viability of pollen grains remain months together after their release.
