Influence of the stump diameter and height on the growth and vigor of eucalyptus sprouts

Authors

  • Débora Caroline Defensor Benedito Universidade Estadual do Sudoeste da Bahia, Vitória da Conquista, BA, Brasil. https://orcid.org/0000-0002-2995-0777
  • Luís Carlos de Freitas Universidade Estadual do Sudoeste da Bahia, Vitória da Conquista, BA, Brasil.

Abstract

Forest stands managed with the coppicing technique tend to display a decreased production in subsequent rotations, demanding high stump sprouting rates, so that the planting succeeds. This study aimed to assess the vigour of eucalyptus sprouts on the basis of stumps diameter and height. The number of sprouts and height of the highest sprout were assessed regarding the stumps diameter, providing the following treatments: stumps smaller than 12 cm in diameter; from 12 to 15 cm; from 15.1 to 18 cm; and larger than 18 cm. The number of sprouts was also assessed as a function of the cutting height of the stumps, providing the following treatments: stumps near the ground and at 5, 10 and 15 cm above the ground. The diameter of the stumps did not influence the amount of sprouts, but exerted influence on the height of the highest sprout after 120 and 150 days of re-sprouting. The stump height had a great influence on the number of sprouts, indicating that, despite reducing the volume of timber harvested, the highest stumps provided expressive gains in the stand regeneration. The cutting height and stumps diameter influence the sprouting vigour of eucalyptus clones managed by the coppicing system.

KEYWORDS: Eucalyptus urograndis, coppicing, reforestation, stump regeneration.

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Author Biography

Débora Caroline Defensor Benedito, Universidade Estadual do Sudoeste da Bahia, Vitória da Conquista, BA, Brasil.

Autor principal 

Engenheira Florestal pela Universidade Estadual do Sudoeste da Bahia, com experiência na área de silvicultura e economia florestal. Intercâmbio acadêmico na Universidad de Oviedo - España e trabalho voluntário no Laboratorio de Producción Vegetal. Mestranda em Ciencias Florestais na na área de Silvicultura e linha de pesquisa em Economia Florestal aplicada à produção de mudas.

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Published

2022-01-27

How to Cite

BENEDITO, D. C. D. .; FREITAS, L. C. de. Influence of the stump diameter and height on the growth and vigor of eucalyptus sprouts. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics], Goiânia, v. 52, p. e70048, 2022. Disponível em: https://revistas.ufg.br/pat/article/view/70048. Acesso em: 21 nov. 2024.

Issue

Vol. 52 (2022)

Section

Research Article

License

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