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Ciência Florestal
Centro de Pesquisas Florestais - CEPEF, Departamento de Ciências Florestais - DCFL, Programa de Pós Graduação em Engenharia Florestal - PPGEF
ISSN: 0103-9954
EISSN: 1980-5098
Vol. 26, No. 2, 2016, pp. 639-646
Bioline Code: cf16056
Full paper language: Portuguese
Document type: Note
Document available free of charge

Ciência Florestal, Vol. 26, No. 2, 2016, pp. 639-646

 en LIGNIFICATION AND GROWTH OF Eucalyptus grandis check for this species in other resources (HILL EX MAIDEN) WITH GA3 AND BAP
Pereira, Regina Paula Willemen; Monteiro, Maria Beatriz de Oliveira & Abreu, Heber dos Santos

Abstract

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 check for this species in other resources . 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%.

Keywords
Eucalyptus grandis; cell wall; lignin; forest biotechnology

 
 pt LIGNIFICAÇÃO E CRESCIMENTO DE Eucalyptus grandis check for this species in other resources (HILL EX MAIDEN) COM GA3 E BAP
Pereira, Regina Paula Willemen; Monteiro, Maria Beatriz de Oliveira & Abreu, Heber dos Santos

Resumo

Nesta pesquisa foram realizados experimentos com duas classes de hormônios vegetais (giberelina e citocinina); com o objetivo de verificar o efeito do ácido giberélico e 6-benzilaminopurina (GA3 e BAP) sobre a lignificação e o crescimento longitudinal em mudas de Eucalyptus grandis check for this species in other resources . O experimento foi realizado em casa de vegetação, na qual foram aplicados os reguladores de crescimento combinados ou isolados, nas seguintes concentrações: GA3 (49,13 μM e 98,26 μM); BAP (111 μM e 222 μM), com cinco repetições para cada tratamento. As comparações entre as médias da altura das plantas aos 6 meses mostraram que os alongamentos mais pronunciados do caule corresponderam aos tratamentos com a maior concentração de GA3. No tratamento em que foi combinada a menor concentração de GA3 com a menor concentração de BAP (49,13 μM de GA3 + 111 μM de BAP), ocorreu o menor teor de lignina 23,37%.

Palavras-chave
Eucalyptus grandis; parede celular; lignina; biotecnologia florestal

 
© Copyright 2016 - Ciência Florestal
Alternative site location: http://cascavel.ufsm.br/revistas/ojs-2.2.2/index.php/cienciaflorestal/index

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