Características morfométricas de frutos e sementes e germinação de Thespesia populnea

Câmara, Celene de Albuquerque; Neto, João Correia de Araújo; Ferreira, Vilma Marques; Resende, Leila de Paula; Costa, Silvia Sanielle da

doi:10.1590/s0006-87052009000200025

Cited by 4 publications

(3 citation statements)

References 8 publications

(2 reference statements)

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“…Com relação à distribuição de frequência dos valores obtidos para cada variável, o comprimento dos frutos variou de 72,76 a 144,11 mm, com 31% apresentando de 101,30 a 115,57 mm (Figura 3A), a largura variou de 31,76 a 66,83 mm, com 64% apresentando de 45,79 a 59,82 mm (Figura 3B) e a espessura variou de 32,44 a 64,50 mm, com 32% apresentando de 38,85 a 45,26 mm (Figura 3C), indicando que há variabilidade entre os genótipos estudados de S. striata. Em estudos realizados com as espécies Theobroma subincanum e Thespesia populnea, ambas da família Malvaceae, também foram encontradas variações entre valores mínimos e máximos dos frutos (CAMARA et al, 2009;SANTOS, 2011). Para as sementes, o comprimento variou de 20,33 a 27,79 mm, com 32% apresentando de 21,82 a 23,31 mm (Figura 4A) e a largura variou de 14,72 a 21,00 mm, com 37% das sementes apresentando de 15,98 a 17,23 mm (Figura 4B).…”

Section: Resultado E Discussãounclassified

BIOMETRIC VARIATION OF FRUITS AND SEEDS OF Sterculia striata A.St.-Hil. & Naudin

Pedri

Cardoso

Tiago

et al. 2018

Nucleus

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Sterculia striata (Malvaceae), espécie arbórea nativa do cerrado brasileiro, é conhecida popularmente como chichá e apresenta potencial econômico e ecológico. O objetivo deste estudo foi mensurar e correlacionar as principais características biométricas de frutos e sementes de S. striata cultivados no município de Carlinda, Mato Grosso, visando verificar a existência de variabilidade genética intraespecífica e determinar características que possam ser utilizadas em futuras coletas de sementes para obtenção de mudas, apresentando uma nova alternativa tanto para agricultores familiares quanto para projetos de recuperação de áreas degradadas. Neste contexto, foram avaliados 100 frutos e 100 sementes oriundas de dez genótipos de S. striata cultivados no sitio Santana (9°54'24.31"S; 55°46'59.46"W), comunidade Belém, município de Carlinda, MT. As análises foram realizadas no laboratório de Genética Vegetal e Biologia Molecular da Universidade do Estado de Mato Grosso (UNEMAT) onde foram mensurados o comprimento e a largura dos frutos e sementes, bem como a espessura do fruto. O estudo indicou, através das medidas biométricas, que a espécie apresenta variabilidade das características comprimento (108,31 mm), largura (51,89 mm) e espessura (45,22 mm) dos frutos bem como do comprimento e largura das sementes (23,64 e 17,40 mm, respectivamente). Houve correlação significativa entre o comprimento do fruto com o comprimento e largura da semente, apontando que estas variáveis são dependentes entre si.

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Section: Resultado E Discussãounclassified

BIOMETRIC VARIATION OF FRUITS AND SEEDS OF Sterculia striata A.St.-Hil. & Naudin

Pedri

Cardoso

Tiago

et al. 2018

Nucleus

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“…The seeds were distributed on two sheets of paper towel, previously moistened with distilled water in the proportion of 2.5 times the weight of the dry paper and kept in a germination chamber regulated at 30 °C (Camara et al, 2009). …”

Section: Control (Intact Seeds)mentioning

confidence: 99%

Morphometric Characterization and Seed Dormancy Overcoming of Sapindus saponaria L.

Neves¹,

Neto²,

Ferreira³

et al. 2018

JAS

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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.

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“…The species has very rapid growth and propagation, being still quite wind resistant. It is considered an exotic invasive species in several parts of the globe (Little and Frank, 1964;Friday and Okano, 2005;Orwa et al, 2009;Ammondt et al, 2013;Cabi, 2016). It competes for space and resources with native species, reducing native biodiversity (Cabi, 2016).…”

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confidence: 99%

Biological invasion by Thespesia populnea in sites under fluviomarine influence

Santos

Fabricante

2018

Neotropical Biology and Conservation

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The present study aimed to report the biological invasion by Thespesia populnea of sites under fluviomarine influence and adjacent environments of the Sergipe River, in Aracaju, Sergipe, Northeastern Brazil, by Thespesia populnea, as well as to evaluate the susceptibility of the occurrence of the species in other Brazilian regions. The study site comprises a mangrove area and adjacent sites of the Sergipe river. The focuses of the invasion by T. populnea were obtained by means of walks throughout the extension of the site (active search). To evaluate the susceptibility of occurrence of the species in Brazil, an ecological niche modeling analysis was performed. The invasion of the species was registered at several points in the study area, with the highest concentrations in the most degraded sites. The results of the model analysis demonstrate high to extremely high susceptibility to the occurrence (biological invasion) of the species in several parts of the country. The attributes of the species, observations in situ and results of the modeling analysis suggest the need to control T. populnea in the study area and prohibition of its planting in the Brazilian territory.

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Características morfométricas de frutos e sementes e germinação de Thespesia populnea

Cited by 4 publications

References 8 publications

BIOMETRIC VARIATION OF FRUITS AND SEEDS OF Sterculia striata A.St.-Hil. & Naudin

BIOMETRIC VARIATION OF FRUITS AND SEEDS OF Sterculia striata A.St.-Hil. & Naudin

Morphometric Characterization and Seed Dormancy Overcoming of Sapindus saponaria L.

Biological invasion by Thespesia populnea in sites under fluviomarine influence

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