Data on the availability of different sizes of fruits, seed production
according to size classes, germination success and viability of
seeds of Sonneratia apetala Buah—Ham. were collected during 1984—
85 from the Chittagong coastal area. The fruit dropping period
extended from late July to early October. Fruit size varied and proportion
of medium sized fruits was h:gh. No significant difference in
germination success was detected when seeds from different fruit size
classes were collected and sown. Viability of seeds declined with
passage of time in the laboratory as well as under field conditions.
No seed germinated in the field when sown after 60 days of fruit
collection.