Genetic variation in wood color and its correlations with tree growth and wood density of Calycophyllum spruceanum at an early age in the Peruvian Amazon

Montes, Carmen Sotelo; Hernández, Roger E.; Beaulieu, Jean; Weber, John C.

doi:10.1007/s11056-007-9060-9

Cited by 48 publications

(49 citation statements)

References 18 publications

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“…the slowergrowing plantations were in the lower and middle zones and the faster-growing plantations were in the middle and upper zones. Much of the variation in growth was due to plantations and residual variation: this and the significant family by plantation interactions were probably due to the relatively large plantation size and farmers' erratic weeding practices, as reported earlier for this study (ROCHON et al, 2007) and for another provenance/progeny test established on farms in the same watershed (SOTELO MONTES et al, 2006). Growth of G. crinita trees differed significantly due to provenances and families within provenances at 24 months, but the two genetic components accounted for very little variation, as observed at 12 months (ROCHON et al, 2007).…”

Section: Genetic and Environmental Variation In Tree Height And Stem supporting

confidence: 67%

“…This illustrates the fact that differences in tree growth among planting environments tend to increase over time (e.g., WEBER and SOTE- LO MONTES, 2005;SOTELO MONTES et al, 2006;WEBER and SOTELO MONTES, 2008). Growth traits did not differ significantly among zones in the analyses of the fasterand slower-growing plantations because the slow/fast factors were confounded with zones, i.e.…”

Section: Genetic and Environmental Variation In Tree Height And Stem mentioning

confidence: 85%

“…We used the multiplier 3 rather than 4, as others have done (HODGE et al, 2002;HODGE and DVORAK, 2004;SOTELO MONTES et al, 2006), in order to provide a conservative estimate of h 2 i under the assumption of partial inbreeding. The denominator of h 2 i included the following variance components: 2 were calculated using the formula provided by BECKER (1984).…”

Section: Data Collection and Statistical Analysesmentioning

confidence: 99%

“…Hook. f. ex K. Shum (SOTELO MONTES et al, 2003;WEBER and SOTELO MONTES, 2005;SOTELO MONTES et al, 2006); Prosopis flexuosa D.C. (CONY, 1996); Sterculia apetala (Jacq.) Karst (DVORAK et al, 1998); Vochysia guatemalensis Sm., J. D. (CORNELIUS and MESÉN, 1997)].…”

Section: Genetic and Environmental Variation In Tree Height And Stem mentioning

confidence: 99%

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Genetic variation in tree growth, stem form and mortality of Guazuma crinita in slower- and faster-growing plantations in the Peruvian Amazon

Weber¹,

Montes²,

Cornelius

et al. 2011

Silvae Genetica

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Guazuma crinita is an important timber tree with a rotation age of 6-12 years in the Peruvian Amazon. A provenance/progeny test containing 200 families from seven locations (provenances) in the Aguaytía watershed of Peru was established in three zones in the Aguaytía watershed that differ in mean annual rainfall and soil fertility. Farmers managed the replications as plantations. Replications were divided into two groups at 24 months: faster-and slower-growing plantations. The faster-growing plantations were thinned at 32 months. The objectives of this paper are to determine if genetic variation in growth traits (tree height, stem diameter) is relatively greater in the faster-growing plantations, and if there are significant differences in tree mortality and stem bifurcations among provenances and families at 24, 36 and 48 months. Variation due to provenances and families and heritability of growth traits were consistently greater in the faster-growing plantations. At 48 months, heritability of growth traits was about twice as large in the faster-than in the slower-growing plantations. There were no significant interactions between zones and either provenances or families. Tree mortality and stem bifurcations in the faster-growing plantations generally did not differ significantly among families, but did differ significantly among provenances. Based on these results and considering its rotation age, we recommend that G. crinita families/trees could be selected at 48 months in the faster-growing plantations, the plantations could be transformed into seed orchards and the seed could be used for reforestation throughout the Aguaytía watershed. Results are compared with other tropical hardwoods.

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Section: Genetic and Environmental Variation In Tree Height And Stem supporting

confidence: 67%

Section: Genetic and Environmental Variation In Tree Height And Stem mentioning

confidence: 85%

Section: Data Collection and Statistical Analysesmentioning

confidence: 99%

Section: Genetic and Environmental Variation In Tree Height And Stem mentioning

confidence: 99%

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Genetic variation in tree growth, stem form and mortality of Guazuma crinita in slower- and faster-growing plantations in the Peruvian Amazon

Weber¹,

Montes²,

Cornelius

et al. 2011

Silvae Genetica

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“…A cor pode ser alterada pelo teor de umidade, pela temperatura, pelas degradações provocadas pelo ataque de organismos xilófagos ou, ainda, pelas reações fotoquímicas dos componentes químicos presentes em sua estrutura. A idade da madeira e da árvore também são fatores que infl uenciam a cor natural deste material, assim como os tratos silviculturais e o tipo de solo onde se desenvolveu a planta (SOTELO MONTES et al, 2008).…”

Section: Atayde C M Et Alunclassified

Características colorimétricas entre as seções anatômicas da madeira de muirapiranga (Brosimum sp.)

Atayde

Gonçalez

Camargos

2011

CERNE

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Objetivou-se, com este trabalho, avaliar as características colorimétricas das três seções anatômicas (transversal, tangencial e radial) da madeira de muirapiranga (Brosimum sp.), utilizando o sistema CIELAB 1976 (Comissão Internacional de Iluminantes). A partir de 10 amostras de madeira, obtidas em movelarias do município de Cruzeiro do Sul - AC, foram determinados os parâmetros colorimétricos: luminosidade (L*), coordenada do eixo vermelho-verde (a*), coordenada do eixo azul-amarelo (b*), saturação (C) e ângulo de tinta (h*). Foram tomadas em média 34 medições por corpo-de-prova, em cada um dos planos ou seções. Dessa forma foram obtidos os seguintes parâmetros colorimétricos para a espécie Brosimum sp.: L*=42,13, a*=18,87, b*=15,05, C=24,23 e h*=37,86. Houve variações de cor, mostrando diferenças significativas entre as três seções estudadas. Em relação à reflectância, observou-se que a seção transversal (6-28%) refletiu menos luz que as seções tangencial (6-43%) e radial (7-49%). Conforme o plano anatômico da madeira, pode-se obter madeiras com diferentes tons de vermelho, permitindo a formação de lotes de madeira com a mesma tonalidade.

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Tree Domestication in Agroforestry: Progress in the Second Decade (2003–2012)

Leakey

Weber

Page

et al. 2012

Agroforestry - The Future of Global Land Use

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Genetic variation in wood color and its correlations with tree growth and wood density of Calycophyllum spruceanum at an early age in the Peruvian Amazon

Cited by 48 publications

References 18 publications

Genetic variation in tree growth, stem form and mortality of Guazuma crinita in slower- and faster-growing plantations in the Peruvian Amazon

Genetic variation in tree growth, stem form and mortality of Guazuma crinita in slower- and faster-growing plantations in the Peruvian Amazon

Características colorimétricas entre as seções anatômicas da madeira de muirapiranga (Brosimum sp.)

Tree Domestication in Agroforestry: Progress in the Second Decade (2003–2012)

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