An approach to quantify natural durability of Eucalyptus bosistoana by near infrared spectroscopy for genetic selection

Li, Yanjie; Sharma, Monika; Altaner, Clemens M.; Cookson, L.J.

doi:10.1016/j.indcrop.2020.112676

Cited by 12 publications

(2 citation statements)

References 33 publications

(24 reference statements)

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“…However, a positive genetic correlation between heartwood diameter and extractive content (r g = 0.32) was found for L. eurolepis (Pâques & Charpentier 2015). With the negative correlation observed for E. globoidea, trees with more heartwood tend to have lower amounts of extractives in the heartwood, resulting in lower decay resistance (Li et al 2020). Selection for high durability will compromise heartwood quantity; however, as the correlation applies at the population level, individual trees that excel in both traits (i.e., so-called "correlation breakers") may exist.…”

Section: Traitmentioning

confidence: 96%

Genetic variation in wood properties of mid-rotation age Eucalyptus globoidea

Iyiola

Altaner

Apiolaza

2022

NZJFS

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Background: Eucalyptus globoidea Blakely produces ground-durable (Class 2) and stiff wood and has the potential to be grown in New Zealand to supply high-value environmentally-friendly timber for use as posts in the agricultural sector and stiff veneers for the LVL industry. The New Zealand Dryland Forests Initiative (NZDFI) has established a breeding programme for this species. The objective of this study was to identify trees with superior wood properties for commercial propagation enabling the establishment of a domestic plantation resource of ground-durable timber. Methods: The genetic variation in wood properties at mid-rotation age (8-year-old) of 141 E. globoidea families was assessed for the following traits: heartwood diameter, diameter under bark at ~0.5 m height, combined sapwood diameter, heartwood collapse, sapwood collapse, standing tree acoustic velocity and extractive content in the heartwood. Families were ranked and genotypes with large heartwood diameter, high extractive content and stiffness as well as low collapse were identified. Results: Heartwood diameter (h2 = 0.51) and extractive content (h2 = 1.16) showed good heritability, which in combination with high variation are promising traits for a breeding programme. The high heritability for extractive content indicated a closer relatedness within the population than the assumption of unrelated families of half-siblings. The unfavourable correlation between the heartwood diameter and extractive content (genetic correlation (rg) = −0.45) indicated that a compromise is required for simultaneous improvement of both traits. Heritability estimates for heartwood collapse (h2 = 0.30) and acoustic velocity (h2 = 0.36) were moderate. Conclusions: Genetic selection for wood quality traits of E. globoidea is practically feasible. Superior individuals with above average performance for multiple traits were present in the breeding populations, however, this was dependent on the intended end use of the timber.

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Section: Traitmentioning

confidence: 96%

Genetic variation in wood properties of mid-rotation age Eucalyptus globoidea

Iyiola

Altaner

Apiolaza

2022

NZJFS

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“…Many variables influence the mechanical characteristics of bamboo cell walls, including microstructure and chemical composition. As a result, understanding the mechanical characteristics of bamboo cell walls at the cellular level is important [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Determination of the Effects of Superheated Steam on Microstructure and Micromechanical Properties of Bamboo Cell Walls Using Quasi-Static Nanoindentation

Yuan

Liu

Dong

et al. 2021

Forests

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In this paper, quasi-static nanoindentation was applied for investigating the influence of superheated steam on microstructure and micromechanical properties of Moso bamboo cell walls. The changes of mico-morphology, chemical composition, cellulose crystallinity index, micro-mechanical properties of bamboo were analyzed via scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared (FTIR), and nanoindentation. As expected, the content of hemicellulose and cellulose showed a downward trend, whereas the relative lignin content increased. Elastic modulus and hardness of the cell wall increased compared with that of the untreated sample. The elastic modulus and hardness of bamboo increased from 11.5 GPa to 19.5 GPa and from 0.35 GPa to 0.59 GPa. Furthermore, results showed that the creep resistance positively correlated to treatment severity.

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Predicting components of pulpwood feedstock for different physical forms and tree species using NIR spectroscopy and transfer learning

Zhang,

Zhong,

et al. 2023

Cellulose

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An approach to quantify natural durability of Eucalyptus bosistoana by near infrared spectroscopy for genetic selection

Cited by 12 publications

References 33 publications

Genetic variation in wood properties of mid-rotation age Eucalyptus globoidea

Genetic variation in wood properties of mid-rotation age Eucalyptus globoidea

Determination of the Effects of Superheated Steam on Microstructure and Micromechanical Properties of Bamboo Cell Walls Using Quasi-Static Nanoindentation

Predicting components of pulpwood feedstock for different physical forms and tree species using NIR spectroscopy and transfer learning

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