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| Alves,Magnólia Martins; Alves,Edna Ursulino; Silva-Moura,Sueli dos Santos; Araújo,Luciana Rodrigues de; Silva,Rosemere dos Santos; Ursulino,Marina Matias. |
| Platymiscium floribundum Vog., pertencente à família Fabaceae, pode ser utilizada no paisagismo, em reflorestamentos e na recomposição de áreas degradadas e de preservação permanente. Objetivou-se verificar o efeito da posição da semente e da profundidade de semeadura na emergência e crescimento inicial de plântulas de P. floribundum. O experimento foi realizado em delineamento inteiramente ao acaso, utilizando-se diferentes posições das sementes no substrato areia: hilo voltado para baixo (HB), hilo voltado para o lado, formando um ângulo de 90° em relação ao eixo imaginário com o substrato (HL) e hilo voltado para cima (HC), nas profundidades de semeadura de 0, 1, 2, 3, 4, 5 e 6cm. Avaliou-se a porcentagem, primeira contagem e índice de velocidade de... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Sacambu; Sementes florestais; Tecnologia de sementes.. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782014001202129 |
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| Ursulino,Marina Matias; Costa,Maria do Perpétuo Socorro Damaceno; Medeiros,José George Ferreira; Alves,Edna Ursulino; Araujo,Paulo Costa; Bruno,Riselane de Lucena Alcantara; Araujo,Luciana Rodrigues de. |
| ABSTRACT: The forest species Dimorphandra gardneriana Tul. is widely used for various pharmacological products, yet few basic studies have been undertaken to understand their ecological and physiological attributes under stress conditions. The goal of this research was to evaluate the seed germination and vigor when subjected to different osmotic potentials and temperatures. Water restriction was simulated with polyethylene glycol 6000 solution (PEG 6000) with osmotic potentials of 0; -0,2; -0,4; -0,6; -0,8, and -1,0MPa at temperatures of 20, 25, 30, and 35°C. The effect of the treatment was determined by the germination and vigor (germination speed index, length and phytomass of dry shoot and roots) of the seeds, in an entirely random design with four... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Faveira; Water restriction; Forest species. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016001202090 |
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| Alves,Magnólia Martins; Alves,Edna Ursulino; Araújo,Luciana Rodrigues de; Lima,Maria de Lourdes dos Santos; Ursulino,Marina Matias. |
| ABSTRACT: Caesalpinia pulcherrima is a Fabaceae family species from Central America, which has a small size and is widely used as a living fence in the urban afforestation for streets, parks, and gardens. Based on this importance, the aim of this research was to study the influence of light and temperature on the germination of C. pulcherrima seeds. The study was carried out at the Laboratory of Seed Analysis of the Center of Agricultural Sciences of the Universidade Federal da Paraíba, Areia, PB, Brazil. The experimental design was completely randomized, comprising a 3x5 (three temperatures and five light regimes) factorial scheme with four replicates containing 25 seeds each. Germination and vigor of seeds were evaluated under temperatures of 25°C and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Flamboyant mirim; Photoblastism; Vigor. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000800401 |
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