CONTENT, ACCUMULATION AND TRANSLOCATION INDEX OF NUTRIENTS IN SEEDLINGS OF CEDRO (Cedrela fissilis VELL.) SUBMITTED TO INCREASING LEVELS OF ZINC

• Autor(a) principal: Paiva, Haroldo Nogueira de
• Data de Publicação: 2005
• Outros Autores: Carvalho, Janice Guedes de, Siqueira, José Oswaldo, Corrêa, João Batista Donizeti
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Ciência Florestal (Online)
• Texto Completo: https://periodicos.ufsm.br/cienciaflorestal/article/view/1717
• topic: native forest species; heavy metal; plant nutrition.; espécie florestal nativa; metal pesado; nutrição de plantas

The aim of this work was to evaluate the effects of the increasing levels of Zn on cedro (Cedrela fissilis Vell.) seedlings. The experiment was conducted in Clark nutrient solution, in a greenhouse of the Soil Science Department of the Federal University of Lavras. The plants were submitted to increasing levels of Zn: 2, 76, 152, 304 e 456 µmol L-1, in randomized blocks statistical design. At the end of 60 days of growth, evaluations were made of macro and micronutrients content and accumulation in the root, stem, leaf, shoot and total dry matter. It was also estimated a translocation index of these nutrients. The results show that, in a general way, there was different response to content and reduction in the macro and micronutrients accumulation, independent of the part of the plant analyzed, while the translocation index was increasing with the levels of applied Zn.