Above ground pruning, aiming better quality of seedlings of Pinus taeda, in Caçador, SC

Authors

  • Saulo Jorge Téo Universidade do Oeste de Santa Catarina
  • Alan Marcon Universidade do Oeste de Santa Catarina
  • Reinaldo Hoinacki da Costa Juliana Florestal Ltda

DOI:

https://doi.org/10.4336/2014.pfb.34.77.468

Keywords:

Pruning intensity, h/dn relation, Mortality

Abstract

The objective of this paper was to evaluate the effects caused by the above ground pruning over the survival, height (h), neck diameter (dn) and h/dn relation, of Pinus taeda L. seedlings, in the municipal district of Caçador, Santa Catarina State, Brazil, aiming to obtain seedlings of better quality. Six different types and intensities of pruning were tested. The data were analyzed by the variances homogeneity test (Bartlett´s test), variance analysis (ANOVA) and, by the Tukey´s test of means comparison (α = 5%). Sixty days after the experiment installation, there was no seedlings mortality ; the removal of the upper portion of the seedlings showed abundant formation of side shoots, significant decrease of seedling heights and h/dn relation, improving the quality pattern of the seedlings. On the other hand, the removal of the lower portion of seedlings leaves caused significant increase of heights, but did not affect the h/dn relation. None of the treatments resulted in significant increase in neck diameter. However, the most intensive above ground pruning (upper portion removal + removal of the 2/3 of the lower portion of leaves) caused significant reduction of the neck diameter and, consequently, of the seedlings quality.

Downloads

Download data is not yet available.

Author Biographies

Saulo Jorge Téo, Universidade do Oeste de Santa Catarina

http://lattes.cnpq.br/7406585450753380

Alan Marcon, Universidade do Oeste de Santa Catarina

http://lattes.cnpq.br/6340300368787535

Downloads

Published

2014-04-04

How to Cite

TÉO, Saulo Jorge; MARCON, Alan; DA COSTA, Reinaldo Hoinacki. Above ground pruning, aiming better quality of seedlings of Pinus taeda, in Caçador, SC. Pesquisa Florestal Brasileira, [S. l.], v. 34, n. 77, p. 57–62, 2014. DOI: 10.4336/2014.pfb.34.77.468. Disponível em: https://pfb.sede.embrapa.br/pfb/article/view/468. Acesso em: 9 mar. 2026.

Issue

Vol. 34 No. 77 (2014): jan./mar.

Section

Articles

License

Pesquisa Florestal Brasileira (PFB) licenses all its published content under Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0).

  • Copyright: Authors maintain the copyright to their work. PFB holds the right to the first publication, and use rights under the specific Creative Commons deed.
  • Editing and revision: PFB reserves the right to edit the original manuscript to ensure conformity with the standards, spelling and grammar of the Portuguese language, while respecting the style of the author(s). The final version of the text shall be sent to the corresponding author for approval prior to publication.
  • Sharing and reuse: The CC BY-NC-ND 4.0 license permits sharing of the article in its original version, as long as credit is given to the journal and the authors and the material is not used for commercial purposes. No alterations or adaptations of the original content are permitted.
  • Figures and illustrations: Figures and illustrations published in PFB may only be used with express prior authorization from Embrapa Forestry.
  • Disclaimer: The opinions and beliefs expressed in the texts published herein are the exclusive responsibility of their respective authors and not PFB.