Seed Characteristics and Germination Behaviour of some Early and Late Successional Tree Species on a Nutrient Gradient

Abstract

Seed characterlstics and germination behaviour on nutrient gradient was studied in three early and three late successional tree species. It was found that early successional species have lower seed dry weight (835 to 110 mg seed-1) in comparison to late successional species (1,250 to 7,250 mg seed-1). Seed moisture content was also greater for late successional species (52.58%) than for early successional species (19.97%). However, per cent germination was lower for late successionaispecies (65%) in comparison to early successional species (78%). All species showed broad germination responses on the nutrient gradient.