Biometric studies of fruits and seeds can detect phenotypic variability among individuals of the same species and it be applied in breeding programs. Besides, they contribute to the selection of seeds with a higher standard of biophysical quality to be used for the seedlings production. The objective of this study was to evaluate the fruit and seeds biophysical traits and emergency of "jutaí-açú" (Hymenaea courbaril L.) seedlings from different provenance. The fruits and seeds come from the municipalities of Ananindeua and Portel, Pará. For biometric evaluation of fruits and seeds and fresh mass, 50 and 100 units were used, respectively. Additionally, the moisture content and number of seeds per fruit were evaluated. The emergency test was performed in a completely randomized design, consisting four replicates of 25 seeds each. The percentage of emergency (E), emergency speed index (ESI) and average time of emergency (ATE) were evaluated. Ananindeua provenance showed higher averages for length, thickness and number of seeds per fruit. In contrast, the Portel provenance showed the highest averages for length and seed thickness. Ananindeua provenance was higher physiologically in relation to the Portel provenance, with E equal to 73 and 21%, respectively; the TME was 14.86 and 23.03, respectively; and the IVE was 1.27 and 0.23 respectively. The results showed variations between the biophysical and physiological attributes of the two provenances.

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RESUMO A biometria de sementes é uma variável de fácil medição que pode indicar a existência de variabilidade genética favorecendo a produção de mudas com elevado padrão de qualidade. O presente trabalho teve como objetivo avaliar a morfometria e massa fresca de frutos e sementes e a emergência inicial de plântulas de três matrizes de santol [Sandoricum koetjape (Burm. f.) Merr.]. Os frutos e sementes são procedentes de três árvores matrizes localizadas em Belém, estado do Pará. Para as variáveis biofísicas de frutos e sementes foram utilizados 50 e 100 amostras, respectivamente. A emergência de plântulas foi realizada em substrato areia com serragem, na proporção de 1:1, constando de quatro repetições com 25 sementes. Observou-se elevada variabilidade para massa fresca dos frutos e sementes, número de sementes por fruto, massa fresca do número de sementes por fruto. As árvores matrizes de santol apresentaram potencial para coleta de sementes a serem destinadas para produção de mudas.