Fruit characteristics, seed viability and polyembryonic nature of jamun (eugenia jambulanum) fruits of bangladesh

Abstract

Of the five lines of Jamun studied Guda Jam produced the heaviest fruit (6.48 g) with maximum size (2.60 x 1.66 cm) followed by Comilla Jam (4.40 g and 233 x 1.66 cm). The highest brix reading was observed in Khudi Jam (17.5 %) and the lowest in Tit Jam (4.9%). The brix reading of other lines ranged from 7.5 to 10.6 per cent. The Guda Jam had highest edible portion (75.0%) closely followed by Kalo Jam (73.5%) and Tit Jam (72.0%). On overall consideration Guda Jam and Comilla Jam were found superior to others. Jamun seeds retained 84 to 96% germination upto 14 days of storage at room temperature after which germination decreased sharply. Monocmbryonic and polycmbryonic seeds ranged between 4-30 and 64-80% respectively.