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Brazilian Journal of Botany

versión impresa ISSN 0100-8404versión On-line ISSN 1806-9959


SIVASUBRAMANIAM, K.  y  SELVARANI, K.. Viability and vigor of jamun (Syzygium cumini) seeds. Braz. J. Bot. [online]. 2012, vol.35, n.4, pp.397-400. ISSN 0100-8404.

Jamun (Syzygium cumini L. Skeels) (Black plum, Damson plum) fruits weigh between 2-5 g at maturity. Fresh seeds represented 20-80% of the total fruit weight; the seed coat and cotyledons contributed 6% and 94% to the total seed weight respectively, while the weight of the embryonic axis was insignificant. Only the embryonic axis stained with Tetrazolium, not the cotyledons. The seeds are polyembryonic with up to four embryos, of which at most three germinate. Decoated seeds germinated faster than coated seeds under nursery conditions, with high significant germination percentages, dry matter production rates and vigor indices. The lack of staining of the cotyledon by tetrazolium was probably due to the presence of an impermeable layer. Decoating seeds for faster germination is recommended.

Palabras clave : decoated seeds; embryo; Myrtaceae; polyembryony; tetrazolium.

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