Paricá recoverability after simulated defoliation

• Autor(a) principal: Duarte, Daiane Marques
• Data de Publicação: 2016
• Outros Autores: Barretto, Vitor Corrêa de Mattos, Ribeiro, Raquel Menestrino, Rodrigues, Fabrício
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Pesquisa Florestal Brasileira (Online)
• Texto Completo: https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1120
• topic: Schizolobium amazonicum; Tolerância; Foliar; Schizolobium amazonicum; Foliar damage; Tolerance

Schizolobium parahyba var. amazonicum (paricá) is a native tree species, widely used in reforestation. However, the damages caused by insects to the species reduce the photosynthetically active area, interfering with final growth. Therefore, the objective of this work was to evaluate the recoverability of paricá in early ages after a simulated defoliation. The experiment was designed in randomized blocks divided in four experiments with four replications, separated into two distinct periods (30 and 60 days after emergence) and the percentage of leaves and folioles. After 30 and 60 days of plants emergence, defoliation was carried out. After 30 days in both phases plants height, stem diameter and leaf recovery were evaluated. Data of all defoliation percentages were submitted to variance and regression analyses. Under artificial defoliation, paricá had low reduction in growth and good capacity for damage recovery and it was therefore considered tolerant to different damage percentages tested.