Radial variation in selected wood properties of three cypress taxa

Todoroki, C. L.; Low, C. B.; McKenzie, H.; Gea, L. D.

doi:10.1186/s40490-015-0049-4

Cited by 6 publications

(3 citation statements)

References 31 publications

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“…5). The phenotypic trends observed for MFA were consistent with the previous reports in M. azedarach [9] and other species [19,20]. High MFA in rings close to the pith ensure flexibility and protect the young shoots from wind damage.…”

Section: Mfasupporting

confidence: 90%

Variation in intrinsic wood properties of Melia azedarach L. planted in northern Vietnam

2017

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Variations in intrinsic wood properties [growth ring width (GRW), specific gravity (SG), fiber length (FL), and microfibril angle (MFA)] of 17-19-year-old Melia azedarach trees grown in two sites in northern Vietnam were investigated for effective utilization of the wood. Five discs were collected at 0.3-, 1.3-, 3.3-, 5.3-, and 7.3-m heights above the ground. The estimated mean GRW, SG, FL, and MFA were 7.44 mm, 0.548, 1.07 mm, and 14.65°, respectively. There were significant (P \ 0.05) differences among trees and between sites in SG, FL, and MFA. Longitudinal position significantly (P \ 0.05) influenced GRW and SG. Radial position was highly (P \ 0.001) significant to all the wood properties and contributed the highest (GRW: 52.58%, SG: 58.49%, FL: 77.83%, and MFA: 26.20%) of the total variations. FL and SG increased from pith to bark, while GRW and MFA decreased from pith to bark. Fiber length increment (FLI) tends to stabilize between 7th and 10th rings. This should be taken into account when processing logs. The results of this study, therefore, provide a basis for determining management strategies appropriate to structural timber production of M. azedarach plantation trees in northern Vietnam.

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Section: Mfasupporting

confidence: 90%

Variation in intrinsic wood properties of Melia azedarach L. planted in northern Vietnam

2017

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“…( McCormack et al, 2012) en comparación con Cupressus macrocarpa, la cual tiene una densidad media de la madera de 0.436 g cm -3 (Todoroki et al, 2015).…”

Section: Rosier Et Al (2004a) Evaluaron La Supervivencia En Estacas E...unclassified

Supervivencia y crecimiento radicular en estaquillas tiernas y lignificadas de cedro limón con diferentes sustratos y enraizantes

Prieto-Ruíz

Pérez-Luna

Santillán

et al. 2022

RMCF

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El enraizado de estaquillas permite propagar plantas de ornato difíciles de reproducir por semilla. Cedro limón (Cupressus macrocarpa var. lutea) es muy utilizado con fines ornamentales. El efecto de tres factores se evaluó sobre la supervivencia y el crecimiento de la raíz primaria de cedro limón: dos sustratos (mezcla base y perlita), cuatro enraizantes (Radix® 1500, Radix® 10000, Raizone® Plus y Raizplant® 500) y testigo (sin enraizante), además dos estados de madurez de las estaquillas (tiernas y lignificadas). El diseño experimental fue bloques al azar con arreglo factorial 2*5*2. La evaluación se hizo a los cuatro meses del inicio del enraizado. Las variables se analizaron con las pruebas de Kruskal Wallis y de Dunn para comparar medias pareadas y se aplicó la prueba de comparaciones múltiples de medias de Dunnett. Diferencias significativas se obtuvieron para la supervivencia por efecto del enraizante y la madurez de las estaquillas, además de la triple interacción de los factores evaluados. La supervivencia mayor (45 %) se logró utilizando perlita más Radix® 1500 y estaquillas lignificadas. El crecimiento más grande de la raíz primaria se registró sin enraizante y con estaquillas tiernas (11.75 cm) y lignificadas (10.87 cm), sin importar el sustrato. Aunque, el crecimiento de raíz fue superior sin enraizante, se recomienda usar Radix® 1500 para promover la formación de callo y garantizar mayor supervivencia. El sustrato, enraizante y tipo de estaquilla influyen en la supervivencia y crecimiento de la raíz primaria de estaquillas de cedro limón.

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“…Franco) shows less [69,107] and cypresses (Cupressus spp., Chamaecyparis spp.) much less [108,109] pith-to-bark progression of wood density than radiata pine does, although they may show similar progressions in microfibril angle, wood stiffness, and fibre length. In the Cupressaceae/Taxodiaceae complex, including cypresses and coast redwood (Sequoia sempervirens D.Don Endl.…”

Section: Possible Implications For Other Tree Speciesmentioning

confidence: 99%

Adverse Genetic Correlations and Impacts of Silviculture Involving Wood Properties: Analysis of Issues for Radiata Pine

Burdon

Moore

2018

Forests

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Plantation forestry is now an imperative to meet wood requirements efficiently on the finite land available for wood production. Three main determinants of profitability are productivity, price per unit of wood harvested, and harvest age (the sooner the better). The first two are largely self-evident, while reducing harvest age lowers the effective cost of growing wood. Among these determinants, however, are strong interplays which include trade-offs. Key trade-offs involve adverse genetic correlations between various wood properties and growth-rate variables, and adverse effects on the wood quality of silvicultural interventions that raise site productivity and/or reduce harvest age. Moreover, the adverse effects of silviculture on wood properties tend to be accompanied by heightened expressions of genetic variation in wood properties. The trade-offs involve both increasing the percentage of corewood ('juvenile wood') and some more direct effects on wood quality. The pervasiveness of the trade-offs, and the heightened genetic expression, accentuate the call for genetic selection to defend wood quality. Such selection, however, will entail some costs in the appropriate emphasis on breeding for productivity. In this paper we review these issues, identify gaps in research information and offer guidance for tree breeders and silviculturists. While radiata pine is the special case, the applicability to some other species is briefly discussed.

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Radial variation in selected wood properties of three cypress taxa

Cited by 6 publications

References 31 publications

Variation in intrinsic wood properties of Melia azedarach L. planted in northern Vietnam

Variation in intrinsic wood properties of Melia azedarach L. planted in northern Vietnam

Supervivencia y crecimiento radicular en estaquillas tiernas y lignificadas de cedro limón con diferentes sustratos y enraizantes

Adverse Genetic Correlations and Impacts of Silviculture Involving Wood Properties: Analysis of Issues for Radiata Pine

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