LIGNIFICATION AND GROWTH OF Eucalyptus grandis (HILL EX MAIDEN) WITH GA3 AND BAP

• Autor(a) principal: Pereira, Regina Paula Willemen
• Data de Publicação: 2016
• Outros Autores: Monteiro, Maria Beatriz de Oliveira, Abreu, Heber dos Santos
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Ciência Florestal (Online)
• Texto Completo: https://periodicos.ufsm.br/cienciaflorestal/article/view/22763
• topic: Eucalyptus grandis; cell wall; lignin; forest biotechnology.; Eucalyptus grandis; parede celular; lignina; biotecnologia florestal.

In this research experiments were accomplished with two classes of vegetable hormones (gibberellin and cytokinin); with the objective of verifying the effect of gibberellic acid and 6-Benzylaminopurine (GA3 and BAP) on the lignification and the longitudinal growth in seedlings of Eucalyptus grandis. The experiment was accomplished greenhouse, where were the growth regulators combined or isolated applied, in the following concentrations: GA3 (49.13 μM e 98.26 μM); BAP (111 μM e 222 μM), with five repetitions for each treatment. The comparisons among the averages of the height of the plants to the 6 months showed that the most pronounced prolongations of the stem corresponded to the treatments G[2], G[2]C[1] and G[2]C[2] where the largest concentration of GA3 was used. In the treatment G[1]C[1] where it was combined to smallest concentration of GA3 with to smallest concentration of BAP (49,13 μM de GA3 + 111 μM de BAP), it happened the smallest lignin tenor 23,37%.