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This study describes the morphological characterization during seedling development of Psidium cattleianum Sabine e Acca sellowiana (O. Berg) Burret. To describe germination and seedling morphology, 100 seeds were allowed to germinate on germitest paper as substrate at a temperature of 25 °C. Were analyzed: type, shape and color of the root, hairiness, shape and coloration of hypocotyl and epicotyl, consistency, texture, shape, venation, color, type of board, apex and base of the cotyledons and protophilus. The germination is epigeous phanerocotyledonal for both species, forming seedlings with an axial root system, long pivoting main root with paracotyledons and simple eophylls, opposites. Glands and secreting cells were observed in all organs except in the root system for both species. The germination of the Psidium cattleianum seed begins approximately 10 days after sowing, when the operculum opens followed immediately by the root protrusion. Acca sellowiana shows a long, cylindrical, erect, brownish- red and glabrous hypocotyl after 28 days. When the paracotyledons are totally exposed, they immediately show an intense green color, demonstrating the photosynthetic potential of the seedling growth. The germination process description alongside the morphology of seedlings constitutes an important element for recognition of species.

ciência florestal

CARACTERIZAÇÃO MORFOLÓGICA DE PLÂNTULAS DURANTE A GERMINAÇÃO DE SEMENTES DE &lt;i&gt;Psidium cattleianum&lt;/i&gt; E &lt;i&gt;Acca sellowiana&lt;/i&gt; (MYRTACEAE)