INDIAN SCIENCE CONGRESS - India Environment Portal

72
Proc. 98th Indian Science Congress, Part II : Abstracts of Oral/Poster Presentation
pattern of tree species in all the fire zones and non-fire zone generally showed
five general patterns, details of which will be discussed in the presentation.
90. A Comparative Study of Seedling Diversity in the Genus Eragrostis
(Poaceae)
*Dhara Gandhi, Susy Albert and Neeta Pandya
Department of Botany,
Faculty of Science,
The Maharaja Sayajirao University of Baroda,
Vadodara, Gujarat
Keywords : Seedling, Eragrostis, ligule, collar regions
A seedling comes in being when a seed germinates. A seedling is helpful in
assessing the natural regeneration of an ecosystem and is of great importance to
the forest planners. Seedlings of tree species are very easily identifiable while
grasses and herbaceous plants are very difficult to identify at seedling stages,
particularly in the one- to- two-leaf seedling growth stage. Eragrostis is a genus
belonging to the Tribe Eragrosteae. In Gujarat, 14 species of Eragrostis are found,
out of which 6 different species has been analyzed. In the species of Eragrostis
the common feature is hairy ligule and presence of long cilia/hairs at the collar
region. This is the main feature on the basis of which Eragrostis is easily
differentiated from the other genera. Further, on the basis of hairy ligule type,
concentration of hairs, arrangement of hairs and length of hairs different species of
Eragrostis can be differentiated.
91. Petiolar Vasculature and its Application in Taxonomic Diagnosis of the
Genus Dioscorea Linn.
Elsamma Joseph Arackal* and A. G Pandurangan
*Department of Botany,
Maharajas College, Ernakulam
Plant Systematics and Evolutionary Science Division,
Tropical Botanical Garden and Research Institute,
Thiruvananthapuram-695562