Author(s): Mary V Koshy, Thara K Simon* and Teema Joseph
Pollen grains are the microspores inangiosperms, which in acanthaceae and scrophulariaceae varied size from fine to coarse structures and their size can range from 10 to 100 micrometer. As sucrose is considered to serve energy and osmotic for pollen germination, in the present pollen study sucrose based poller germination studies was performed in 20 plant species involved in acanthaceae and scrophulariaceae family. There is remarkable diversity of pollen morphology in various characters such as pollen size, shape, length and width of the pollen tubes identified from the germination study. Morphological characters of pollen grains also can be useful in the studies of plant systematic and palynological characters are used as a tool for diagnosis of a new species.