Substrate moisture in the germination and vigor of Albizia niopoides Benth. seeds

• Autor(a) principal: Silva, Dandara Yasmim Bonfim de Oliveira
• Data de Publicação: 2017
• Outros Autores: Farias, Séfora Gil Gomes de, Oliveira, Caio Varonill de Almada, Sousa, Moema Barbosa de, Silva, Romário Bezerra e
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Revista Verde de Agroecologia e Desenvolvimento Sustentavel
• Texto Completo: https://www.gvaa.com.br/revista/index.php/RVADS/article/view/4500
• topic: Native forest species; White mimosa; Water volume; Forest seeds.; Espécie florestal nativa; Angico branco; Volume de água; Sementes florestais.

The Albizia niopoides, popularly known as white mimosa, is a native forest species of fast-growing and with high potential for reforestation purposes. However, there is little information about its seminiferous spread. Thus, this study aimed to evaluate the germination performance and vigor of A. niopoides seed under different water volumes for substrate moistening. The experimental design was completely randomized with four replicates and each replicate with 25 seeds. The seeds were sown on germitest paper (arranged in rolls) moistened with water volumes equivalent to 1.0; 1.5; 2.0; 2.5; 3.0; 3.5; and 4.0 times the dry weight (DW) of the substrate without further water addition. Germination occurred in a germination chamber (Biochemical Oxygen Demand-B.O.D-type) set at 25 °C and continuous light. The analyzed variables were percentage of germination, length of shoot and primary root, dry weight of shoot, and root seedling system. Decreasing effect on germination percentage values, primary root length, and dry weight of the root system from the substrate moistening with the water volume equivalent to 2.0 times its dry weight were found. Water volumes in the range of 1.0 to 2.0 times the mass of paper favor the germination and vigor of A. niopoides seed.