Abstract

POLLEN MORPHOLOGY, VIABILITY, GERMINATION AND TUBE GROWTH OF SOME PLANT SPECIES

Dr. R. Manonmani* and R. Mekala

Abstract

The present investigation was to study pollen morphology, viability, germination and tube growth of some plant species in basic culture medium. The morphological observations of the studied taxa showed that most of the pollen grains are three zonicolporate, prolate or subprolate with three apertures. The results of the pollen viability revealed that the maximum staining was observed at 90 minutes at 55ºC and colour variation ranging from center of mass red, edges to pink, slightly orange, pink and red. The results of the germination and tube growth revealed the medium containing growth hormones such as IAA, 2,4-D was the most suitable for rapid pollen germination and formation of long pollen tubes than the medium treated with sucrose, boron and KCl in all the experimental plant species.

Keywords: Experimental species, Pollen Morphology, Viability, Germination, Tube growth.