Acca sellowiana O. Berg seed morphology evaluation by image analysis/Avaliacao da morfologia interna de sementes de Acca sellowiana O. Berg por meio de analise de imagens

Acca sellowiana O. (Berg) Burret is a species native from southern of Brazil and Uruguay which has great potential for use in the recovery of native forests and degraded areas. The aim of this study was to evaluate the morphology of Acca sellowiana O. Berg seeds by analysis of X-ray images and correlate the results with seed germination. Acca sellowiana O. Berg seeds, represented by three lots, were analyzed by X-ray test and later the same seeds were submitted to the germination test, with assessment at 44 days after sowing. X-ray images were analyzed with ImageJ software. X-ray test allows Acca sellowiana internal morphology seeds visualization. Seed image analysis allows the measurement of internal seed areas and assists in the study of relationships between seed morphology and germination. The seed internal free space and the presence of damages can affect germination. Index terms: X-ray, images, damage Acca sellowiana O. (Berg) Burret e uma fruteira nativa da regieo Sul do Brasil e do Uruguai, que apresenta grande potencial de uso na recuperaceo de areas degradadas. O objetivo deste trabalho foi avaliar a morfologia interna de sementes de Acca sellowiana O. Berg por meio da analise de imagens de raios X e relacionar os resultados com a germinaceo das sementes. Sementes de Acca sellowiana O. Berg, representadas por tres lotes, foram analisadas pelo teste de raios X e, posteriormente, conduzidas ao teste de germinaceo, com avaliaceo aos 44 dias apos a semeadura. As imagens de raios X foram analisadas com o software ImageJ. A analise das imagens radiograficas de sementes de Acca sellowiana permite a mensuraceo das areas internas livres, assim como a determinaceo da relaceo entre estas e a germinaceo. Danos internos detectados por meio de raios X afetam a germinaceo das sementes. Termos para indexaceo: raios X, imagens, danos.