Comparative performance of Eucalyptus bicostata, E. globulus, E. maidenii and E. pseudoglobulus on three northern New Zealand sites

Abstract

Trials to compare eucalypt species from the blue gum group, including Eucalyptus bicostata Maiden, Blakely & Simmons, E. globulus Labill., E. maidenii F. Muell., and E. pseudoglobulus Naudin ex Maiden were established in 1999 at three sites in the North Island of New Zealand (Northland, Bay of Plenty, and Hawke's Bay). Each species was planted out in replicated 49-tree plots consisting of seven individuals from seven provenances. Only two provenances of E. pseudoglobulus were available and these were outcompeted by inter-planted E. globulus so were not formally assessed. Measurements taken at age seven years indicate a strong species × site effect for foliage health, stem straightness and survival. Generally, growth and foliar health were best at the Hawke's Bay site. Provenance x site interaction was mostly absent for each of the blue gum species. However, there was a significant provenance variation for most traits within E. bicostata, and provenance x site interaction; both of which were largely driven by the performance of the northernmost Wollemi provenance. While some interactions occurred at the species × site level, E. maidenii performed consistently well in growth, stem straightness and health compared with the other taxa. Eucalyptus maidenii appears to be the fastest growing of the species tested within the broad region covered by the study sites, in the warmer coastal areas of New Zealand's North Island.

Variation of perpendicular compressive strength properties related to anatomical structure and density in Eucalyptus nitens green specimens

“…It was observed that the basic density tended to increase from pith to bark (Fig. 2a), which is in agreement with other published literature data (Lausberg et al 1995;Downes et al 1997;Evans et al 2000) as well as the common trend typically reported in the literature for the Eucalyptus genus (Raymond and Muneri 2001;McKinley et al 2002;Wessels et al 2016).…”

An evaluation of fiber biometry and nanomechanical properties of different Eucalyptus species

“…Wood density values ranged from 420 to 484 kg/m 3 , with E. globulus and E. smithii as the higher wood density trees and E. badjensis as the lower one. These values agreed with whole-tree average densities reported by McKinley et al (2002) for 8-yearold E. globulus and E. nitens (476 kg/m 3 and 440 kg/m 3 , respectively).…”

“…Eucalyptus trees are widely used in commercial plantation as raw material for pulp, paper, and cellulose derivatives production due to several desirable features: fast growth, straight form, valuable wood properties, wide adaptability to soils and climates, and easy management (Turnbull 1999;Gomes et al 2015;Carrillo et al 2018b). Several reports have addressed the morphological, anatomical, and chemical features of various Eucalyptus species as well as the respective pulp and derivatives products (Kibblewhite et al 2000;Ona et al 2001;Ramírez et al 2009a, b;Aguayo et al 2014;Carrillo et al 2015Carrillo et al , 2017Carrillo et al , 2018a. Nanocharacterization research has been also carried out in some Eucalyptus species, mainly Eucalyptus nitens (Gacitúa et al 2007;Muñoz et al 2012;Valenzuela et al 2015) and E. grandis × E. urophylla (Zanuncio et al 2016).…”

Mapping Eucalyptus Species Using Worldview 3 and Random Forest

“…Some differences can be found in their growth rates (Pérez-Cruzado et al, 2011), frost tolerances (Close et al, 2000;Davidson et al, 2004) and their responses and susceptibilities to pathogens (Gonçalves et al, 2019;Smith et al 2007), growth stress, wounds and pruning (Beadle et al, 2001;Deflorio et al, 2007;Wiseman et al, 2009). Also, they present crucial differences regarding their industrial properties as wood (McKinley et al, 2002) and the moisture contents of their logs (Bown and Lasserre, 2015). In this sense, the consensus is that E. globulus presents greater interest for the paper industry (Antes and Joutsimo, 2015;Pérez et al, 2006;Pérez-Cruzado et al, 2011) while E. nitens is superior from an energy point of view (Pérez et al 2006).…”