Morphometric Characterization and Seed Dormancy Overcoming of Sapindus saponaria L.

Abstract

S. saponaria L. is a Brazilian native arboreal species, with relevant ecological importance in the recovery of degraded and marginal areas. The objectives of the present study were to characterize morphometrically Sapindus saponaria L. seeds, to extract and to quantify oil content, establish the percent composition of fatty acids; to describe their different post-seminal stages; to describe the different post-seminal stages, as well as to evaluate the germinative performance of the seeds as a function of different treatments to overcome dormancy. Seeds were evaluated as to water content and biometric length and width. The extraction and quantification of the seed oil was obtained by the solvent extraction method using the Soxhlet extractor system. Regarding the post-seminal development, some processes triggered during growth and development of the seedlings were evaluated. The treatments for dormancy overcoming were: mechanical scarification, chemical scarification with sulfuric acid for 5, 10, 20, 30 and 40 minutes, immersion in hot water (80 ºC) until reaching room temperature, immersion in distilled water at room temperature for 24 hours and intact seeds (control). The seeds were evaluated for germination, velocity, medium time, synchrony and germination uncertainty. The design was a completely randomized design with four replicates of 25 seeds per treatment. The seeds present on average 10.3 mm in length and 10.2 mm in width with hygene-cryptocoledonar germination. The oil content found in the seeds was 7.25%, most of which was composed of unsaturated fatty acids (78.9%). The highest values of germination occur when the seeds are immersed in sulfuric acid for 30 minutes.

BIOMETRIA DE SEMENTES E CONDUTIVIDADE ELÉTRICA PARA AVALIAÇÃO DO VIGOR DE Sapindus saponaria L. PROVINIENTES DO ESTADO DE SERGIPE

“…Isso se torna ainda mais evidenciado quando observado os baixos valores para o desvio padrão, para I1 0,47 no comprimento e 0,52 na largura, enquanto que no B1 foi de 0,39 no comprimento e 0,44 na largura, indicando que os valores obtidos tendem a estar próximo a média. Esses resultados assemelham-se aos encontrados na literatura, nos quais foram constatados elevada uniformidade nas sementes da espécie (NEVES et al, 2018;LAFETÁ et al, 2019).…”

Morphological Characterization and Physical Dormancy of Bauhinia winitii Seed: Living Collection of Purwodadi Botanic Garden

“…For external morphological characterization of B. winitii seeds, a sample of 100 seeds was used and the length, width, thickness, and weight of seeds were measured (for quantitative characters), as well as the color, surface, and shape (for qualitative characters). Length and width of seeds were measured using millimeter paper, with the length of the seeds was measured from the base to the tip, while the width of the seeds was measured at the widest part of the seeds or the seed diameter (Das Neves et al, 2018). Seed thickness was determined using digital calipers and seed weight was measured using digital balance.…”

Avaliação de ecossistemas florestais – estudo de caso da mata ciliar do Pajeú

“…In addition, it has many uses and economic benefits for the local population. Indeed, S. saponaria already has a recognized role in the recovery of degraded areas, in addition to its medicinal role against ulcers, inflammation, and skin lesions (PELEGRINI et al, 2008;NEVES et al, 2018). Furthermore, the fruit is used for the extraction of saponin, used in soap (RIBEIRO et al, 1999apud NEVES et al, 2018, and for its insecticidal properties (PREVIERO et al, 2010apud NEVES et al, 2018.…”