17 documents found, page 1 of 2
Testes de vigor para avaliação da qualidade fisiológica de sementes de Amburana...
Guedes, Roberta SalesAmburana cearensis (Allemão) B.C. Smith is a species native to the Northeast region of Brazil. It has been increasingly exploited for fine woodworking, perfumery and medicine. The experiments were conducted in Laboratory of Analysis of Seeds in the Center of Agricultural Sciences of the Federal University of Paraiba, Areia - PB and Laboratory of Image Analysis and Seed Analysis, Department of Plant Production, ...
Seedling length test in the evaluation of the physiological quality of Amburana...
Guedes, Roberta Sales; Alves, Edna Ursulino; Santos-Moura, Sueli da Silva; Galindo, Evio AlvesVigor tests are used in the internal quality control by seed producing companies. Amongst the vigor tests, the test of length of seedlings has potential to give complementary informations to the germination test and makes possible to estimate the potential of emergence of seedlings in the field. The objective of this study was to verify the possibility of using the seedling length test as a vigor method to clas...
Avaliação do potencial fisiológico de sementes de Amburana cearensis (Allemão) ...
Guedes, Roberta Sales; Alves, Edna Ursulino; Costa, Emanuela Márcia Tavares da; Moura, Sueli da Silva Santos-; Silva, Rosemere dos Santos daA semente é insumo básico que deve atender aos requisitos de qualidade fisiológica para garantir o estabelecimento de cultivos com alta produtividade. O presente trabalho teve como objetivo avaliar a eficiência de métodos que permitam separar as sementes em níveis de vigor, sendo utilizados para isso, quatro lotes de sementes de Amburana cearensis (Allemão) A.C. Smith (cumaru). As variáveis analisadas foram: te...
Teste de envelhecimento acelerado em sementes de Chorisia glaziovii (Kuntze) (M...
Guedes, Roberta Sales; Alves, Edna Ursulino; Oliveira, Lamartine Soares Bezerra deA paineira-branca, Chorisia glaziovii (Kuntze) é uma espécie nativa do Nordeste brasileiro, pertencente à família Malvaceae, é bastante utilizada na medicina popular, como ornamental e na recomposição de áreas degradadas e na indústria de estofados. Na análise do vigor de sementes, o teste de envelhecimento acelerado é uma das opções disponíveis, mas não há informações suficientes sobre a sua eficiência para se...
Tratamentos para superar dormência de sementes de Cassia fistula L.
Guedes, Roberta Sales; Alves, Edna Ursulino; Santos-Moura, Sueli da Silva; Costa, Edilson Guedes da; Melo, Paulo Alexandre Fernandes RodriguesA espécie Cassia fistula L. (Fabaceae – Caesalpinioidea) propaga-se por sementes, e para promover a produção das mudas faz-se necessário superar a dormência natural das sementes que é causada pela impermeabilidade do tegumento à água. Assim, objetivou-se avaliar diferentes tratamentos pré-germinativos para superar a dormência de sementes de C. fistula. As sementes foram submetidas aos seguintes tratamentos: tes...
Germination of Dalbergia nigra (Vell.) Fr. All. seeds - doi: 10.4025/actascibio...
Guedes, Roberta Sales; Alves, Edna Ursulino; Gonçalves, Edilma Pereira; França, Pablo Radamés Cabral de; Moura, Macio Faria de; Santos, Sueli da SilvaDalbergia nigra (Vell.) Fr. All., known popularly as jacarandá-da-bahia, it is a plentiful species known for the exploration of its wood. The experiment was conducted at the Laboratory of Seed Analysis (CCA/UFPB), in Areia, Paraíba State, with the objective of determining appropriate methodology for testing germination and vigor of D. nigra seeds. The experiment was carried out in an entirely randomized design ...
Effect of temperature and substrate on germination of Peltophorum dubium (Spren...
Alves, Edna Ursulino; Guedes, Roberta Sales; Gonçalves, Edilma Pereira; Viana, Jeandson Silva; Santos, Sueli da Silva; Moura, Mácio Faria dePeltophorum dubium (Spreng.) Taub. is a species belonging to the family Fabaceae, and is known popularly as golden shower tree. Its wood has multiple uses in reforestation programs and as an ornamental tree, and is also considered an endangered species, requiring studies that assist in its preservation. The present work was conducted with the objective of determine the ideal substrate type and temperature to pe...
Accelerated aging in evaluating the quality of seed physiology of Dalbergia nig...
Guedes, Roberta Sales; Alves, Edna Ursulino; Oliveira, Lamartine Soares Bezerra de; Andrade, Leonaldo Alves de; Gonçalves, Edilma PereiraThe accelerated aging test is a possible option for evaluation of seeds vigor, however there is not enough information on your efficiency for forest seeds, as of Dalbergia nigra (Vell.) Fr. All. This study was conducted to investigate procedures to assess seed vigor by the accelerated aging test in seed forest, of Dalbergia nigra. For so much, an experiment was realized at Laboratory of Analysis of Seeds, in Un...
Health and physiological quality of Amburana cearensis A.C. Smith seeds subject...
Oliveira, Mônica Danielly de Mello; Nascimento, Luciana Cordeiro do; Alves, Edna Ursulino; Gonçalves, Edilma Pereira; Guedes, Roberta SalesThe objective of this work was to evaluate the effectiveness of thermotherapy in the control of fungi associated with seeds of cumaru (Amburana cearensis A.C. Smith) from two localities, after thermal and chemical treatment. The health assessment was conducted by the method of incubation on paper filter (Blotter Test) and physiological quality seeds was determined by germination tests and electrical conductivit...
Emergence and vigor of Amburana cearensis (Allemão) A.C. Smith seedling in func...
Guedes, Roberta Sales; Alves, Edna Ursulino; Gonçalves, Edilma Pereira; Viana, Jeandson Silva; Moura, Macio Farias de; Costa, Edilson Guedes daAmburana cearensis (Allemão) A.C. Smith is a Fabaceae, popularly known as cumaru or cherry tree. This species is native of Northeast Brazilian and has its qualities for industry of wood and as medicinal plant. It has being explored progressively, and now it is striped as threatened species of extinction. So, studies that help in its preservation are important. With the objective of verifying the effect of the p...