|
| << vorige | volgende >> |
Tijdschrift beschrijving
Alle jaargangen van het bijbehorende tijdschrift
Alle afleveringen van het bijbehorende jaargang
Alle artikelen van de bijbehorende aflevering
Details van artikel 16 van 112 gevonden artikelen
| Titel: |
CLONE SELECTION OF Eucalyptus ENVISAGING WOOD PHYSICAL PROPERTIES ASSESSED ON FIELD CONDITIONS |
| Auteur: |
Érica de Alvarenga Crespo Rodrigues Sebastião Carlos da Silva Rosado Paulo Fernando Trugilho Alisson Moura Santos |
| Verschenen in: |
Cerne |
| Paginering: | Jaargang 14 (2008) nr. 2 pagina's 147-152 |
| Jaar: |
2008 |
| Inhoud: |
ABSTRACT: This study evaluated the phenotypic, genetic and environmental parameters for the following wood physical properties:basic density, radial, tangential, volumetric shrinkage and anisotropy coefficient. It also assessed the indirect genetic gains in thephysical properties of wood by the selection of amplitude for longitudinal residual strains evaluated using a non-destructive method.A total of 13 Eucalyptus clones aged 10 years were used. The experiment was established in a completely randomized design with threereplicates. The non-destructive measures were evaluated using extensometer and resistograph. After the quantification of thosecharacteristics, the sawing of the logs was performed and 70.0 cm samples were removed from the top of each board for the makingof specimens preparation and determination of physical properties of wood. The heritability values for the basic density, radial,tangential, volumetric shrinkage and the anisotropy coefficient were considered high 96, 90, 94, 92 and 72, respectively. It was foundthat indirect genetic gains in the basic density can be efficiently reached when selecting for amplitude, supplied by the resistograph. Theresistograph proved efficient to evaluate genetic materials in the field. |
| Uitgever: |
Universidade Federal de Lavras - UFLA (provided by DOAJ) |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 16 van 112 gevonden artikelen
| << vorige | volgende >> |