Performance of Eucalyptus tereticornis provenances in subtropical climate

Authors

  • Milena Daiana Gonzalez Chaves Instituto Nacional de Investigación Agropecuaria (INIA), Programa de Producción Forestal, Estación Experimental INIA Tacuarembó, Tacuarembó, Uruguay https://orcid.org/0000-0002-0863-9437
  • Fernando Resquín Instituto Nacional de Investigación Agropecuaria (INIA), Programa de Producción Forestal, Estación Experimental INIA Tacuarembó, Tacuarembó, Uruguay https://orcid.org/0000-0002-8141-9617
  • Gustavo Balmelli Instituto Nacional de Investigación Agropecuaria (INIA), Programa de Producción Forestal, Estación Experimental INIA Tacuarembó, Tacuarembó, Uruguay https://orcid.org/0000-0002-5762-4207

Keywords:

genotype by environment interaction, forking, stem straightness, survival, volume

Abstract

Eucalyptus tereticornis has a wide natural geographic distribution from Papua New Guinea to South Australia (6º-38º S), therefore, it is expected the existence of important differences among provenances. Although differences in performance among provenances have been reported in several countries, the existing information is insufficient to allow the choice of the most appropriate provenance as a source of seeds for commercial plantations for humid subtropical climates. In order to evaluate the performance of 20 provenances of E. tereticornis in Uruguay and to generate information that contributes to the identification of the best provenances for humid subtropical climates, survival, individual tree volume, stem straightness and forking were assessed at 9-years-old in 4 sites in the center, north and northeast of Uruguay. Significant differences among provenances for all traits and significant provenance by site interaction for survival, individual tree volume and forking were found. No provenance was best in all sites. The Buckenbowra provenance had simultaneously high volume and survival. The absence of a clear regionalization, coupled with a significant provenance-by site interaction, suggests that local evaluation of different provenances is essential to identify appropriate seed sources, both for tree breeding and for use in commercial plantations.

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Published

2022-07-21

How to Cite

1.
Gonzalez Chaves MD, Resquín F, Balmelli G. Performance of Eucalyptus tereticornis provenances in subtropical climate. Agrocienc Urug [Internet]. 2022 Jul. 21 [cited 2023 Feb. 1];26(NE2):e1106. Available from: https://agrocienciauruguay.uy/index.php/agrociencia/article/view/1106

Issue

Section

Plant production