<b>Potential early development of <i>Aspidosperma polyneuron</i> Müll in rehabilitation projects of degraded area in southeastern Amazon</b>

Authors

  • Rubens Ribeiro Ribeiro da Silva Universidade Federal do Tocantins
  • Gilson Araujo de Freitas
  • Aurélio Vaz de Melo
  • Alôncio Gottardo Pietralonga
  • Raimundo Wagner de Souza Aguiar
  • Joenes Mucci Pelúzio
  • Ildon Rodrigues Nascimento

DOI:

https://doi.org/10.5777/paet.v3i1.625

Keywords:

Aspidosperma polyneuron, ecological succession, revegetation

Abstract

The definition and recommendation of the species for the different successional stages in areas under the recovery process are dependent on their behavior in environments under different light intensities. Thus, the present work aimed to define the successional stage in which plants of Aspidosperma polyneuron Müll Arg must be indicated for use in projects that aim to restore degraded areas according to the intensity of light. The experiment was conducted as a randomized block design with 15 replications. The treatments consisted of three levels of brightness (T1: Full sun, T2: 50% retention of light and T3: Natural Shadow). Data collection was performed at intervals of 21 days, until 145 days after emergence (DAE). Plants of Aspidosperma polyneuron Müll subjected to different levels of light intensity linearly as a function of time after planting. When grown in an environment with 50% sunlight they had a rate of growth in height and diameter higher than the plants under full sunlight. The greater weight of dry stem and root were also observed in environments of 50% light. All characteristics evaluated showed mass increases by increasing the light intensity.

Author Biography

Rubens Ribeiro Ribeiro da Silva, Universidade Federal do Tocantins

Professor Pesquisador da Universidade Federal do Tocantins/ Campus Universitário de Gurupi na Área de Solos e Nutrição de Plantas. Linha de Pesquisa: Aproveitamento de Resíduos na Agropecuária; Recuperação de Áreas Degradadas; Sistemas de Manejo do Solo;

Published

31-10-2010

Issue

Section

Articles