Caracterização de frutos e qualidade fisiológica de sementes de Hancornia speciosa Gomes

• Autor(a) principal: Ferreira, Luiz Plinio Santos
• Data de Publicação: 2023
• Tipo de documento: Trabalho de conclusão de curso
• Idioma: por
• Título da fonte: Repositório Institucional da UFS
• Texto Completo: http://ri.ufs.br/jspui/handle/riufs/17590
• topic: Engenharia agronômica; Mangaba; Sementes recalcitrantes; Espécie nativa; Qualidade de sementes; Mangaba; Recalcitrant seeds; Native species; Seed quality; CIENCIAS AGRARIAS::AGRONOMIA

The mangabeira is a plant belonging to the Apocynaceae family that can be found in almost all of the national territory, especially in the Northeast region. In this context, this study aimed to evaluate the morphological characteristics of fruits and physiological quality of Hancorniaspeciosa Gomes seeds. The experiment was carried out at the Campus do Sertão of the Federal University of Sergipe, located in Nossa Senhora da Glória- SE, with fruits acquired in three municipalities: Aracaju-SE, Rio Real BA and Lagarto-SE. For the morphological characterization of fruits the evaluations of the longitudinal diameter and transverse diameter, the fruit fresh mass, the number of seeds per fruit, weight of seeds, weight of seeds per fruit were measured. The seeds were subjected to three drying periods (0, 24 and 48 hours) and to analyze the quality of the seeds, germination was evaluated seeds quality was determined based on germination (GER%), germination speed index (GSI), shoot length (SL), root length (RL), shoot freshmass (SFM), root freshmass (RFM), shoot drymass (SDM) and root drymass (RDM).The longitudinal fruit diameter (DLF) and transversal fruit diameter (DTF) showed statistically different results between the three batches evaluated, and the diameters of the fruits from the Rio Real lot were the ones that presented the high estmean, while the fruits from the Lagarto lot had the lowest average. When evaluating the germination percentage, it was observed that the Aracaju and Lagarto batches showing the highest germination rate when they were submitted to 0 hours of drying. The values found for SL showed statistical similarity for all treatments. When analyzing the SFM and SDM, it was observed that the lots of Lagarto and Rio Real were statistically equal and superior to the of Aracaju in the treatment in 0hoursofdrying. This demonstrates that mangaba seeds germinate more easily when placed to germinate as soon as they are removed from the fruit, but 24 hours after drying germination is also possible, in addition mangaba seeds have better physiological qualities when placed to germinate in a short period time after removing the seeds from the fruits.