Fecha/hora: 15/06/2024 23:56:23

Biblioteca(s): | INIA Tacuarembó.
Fecha corriente: | 10/08/2016
Fecha de la última actualización: | 20/09/2019
Autoria: | BALMELLI, G.; SIMETO, S.; TORRES, D.; HIRIGOYEN, A.; CASTILLO, A.; ALTIER, N.; PÉREZ, G.; DIEZ, J.J.
Afiliación: | GUSTAVO DANIEL BALMELLI HERNANDEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; SOFIA SIMETO FERRARI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; DIEGO GABRIEL TORRES DINI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ANDRES EDUARDO HIRIGOYEN DOMINGUEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ALICIA MARIA CASTILLO SALLE, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; NORA ADRIANA ALTIER MANZINI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; GUILLERMO PÉREZ, Nora Altier, Guillermo Pérez, Julio J. Diez; JULIO J. DIEZ.
Título: | Impact of Teratosphaeria nubilosa over tree growth and survival of Eucalyptus globulus and Eucalyptus maidenii in Uruguay.
Año de publicación: | 2016
Fuente/Imprenta: | New Forests, 2016, v. 47, p. 829-843.
DOI: | 10.1007/s11056-016-9547-3
Idioma: | Inglés
Notas: | Article history: Received: 14 April 2016; Accepted: 15 July 2016; Published online: 18 July 2016.
Contenido: | Teratosphaeria nubilosa severely affects young plantations of Eucalyptus globulus and Eucalyptus maidenii in Uruguay. This work analyzes the effect of the damage caused by T. nubilosa on tree growth and survival of E. globulus and E. maidenii, based on data from a trial naturally infected by this pathogen. The effect of defoliation and proportion of adult foliage on tree growth and mortality was evaluated at 50 months of age. Defoliation in E. globulus was higher than in E. maidenii, reaching average values of 52.5 and 28.8 %, respectively, at 21 months of age. By contrast, E. globulus showed higher precocity of vegetative phase change than E. maidenii. Although the damage threshold for diameter growth was 40 % on E. globulus and 20 % on E. maidenii, the detrimental effect on growth was similar in both species, where the most defoliated trees suffered a reduction in diameter of 49.4 and 47.5 %, respectively, at 50 months of age. Mortality increased significantly when defoliation exceeded 30 % in E. globulus and 40 % in E. maidenii. The results showed that E. maidenii has lower defoliation, higher growth and lower mortality than E. globulus after epidemics of T. nubilosa. However, the lower defoliation and higher proportion of juvenile foliage showed by E. maidenii represent a greater source of inoculum, suggesting that a large-scale replacement of E. globulus by E. maidenii in areas where T. nubilosa is a problem could be risky from an epidemiological point of view.
Palabras-Clave: | COMMERCIAL PLANTATION; DEFOLIATION; FOREST PATHOLOGY; MYCOSPHAERELLA LEAF DISEASE; TERATOSPHAERIA NUBILOSA.
Thesagro: | MYCOSPHAERELLA.
Categoría del tema: | K70 Daños al bosque y protección forestal
Registro original: | INIA Tacuarembó (TBO)
Ejemplares: | TBO - (101348-1) - PXI - AP - DD -  -  -  - DIS