Results 11 to 20 of about 112,877 (169)

Predicted genetic gains for growth traits and wood resistance in Pinus maximinoi and Pinus tecunumanii [PDF]

open access: yesCrop Breeding and Applied Biotechnology, 2022
Tree breeders use traits of economic interest as productivity, stem form and wood quality, to select individuals for advanced generations. We determined the genetic control of growth volume, tree height and diameter, stem form and wood resistance, and ...
Juan Acosta   +4 more
doaj   +5 more sources

Zoneamento climático de Pinus tecunumanii para fins de plantio experimental no estado de São Paulo [PDF]

open access: yesPesquisa Florestal Brasileira, 2012
O Pinus tecunumanii apresenta boa adaptação edafoclimática no Brasil e vem sendo plantado experimentalmente nos biomas mata atlântica e cerrado. O objetivo deste trabalho foi identificar as estações experimentais climaticamente homogêneas do estado de ...
Elenice Fritzsons   +5 more
doaj   +4 more sources

Pulpa kraft blanqueada a partir de Pinus tecunumanii [PDF]

open access: yesBosque (Valdivia), 2005
Se realizo la evaluacion de la especie Pinus tecunumanii (Eguiluz y Perry) de 12 anos proveniente de plantaciones de Colombia como un recurso para la produccion de pulpa blanqueada. Se aplico un proceso de pulpaje kraft, obteniendo pulpa con indice Kappa 30.
TORRES, LEONEL FERNANDO   +2 more
core   +5 more sources

Susceptibility of provenances and families of Pinus maximinoi and Pinus tecunumanii to frost in South Africa [PDF]

open access: yesNew Forests, 2012
The future of South Africa’s most important pine species, Pinus patula, is threatened by the pitch canker fungus, Fusarium circinatum. Pinus maximinoi and P. tecunumanii represent two subtropical species that provide an alternative to planting P. patula on the warmer sites of South Africa. Extending the planting range of P. tecunumanii and P. maximinoi
Mitchell, R.G. (Richard Glen)   +4 more
openaire   +4 more sources

Stem breakage and forking in low and high elevationPinus tecunumanii [PDF]

open access: yesSilvae Genetica, 2011
SummaryThe incidences of stem breakage and forking at ages five and eight years in low and high elevationPinus tecunumaniiwere assessed in multilocation provenance-progeny tests comprising 16 provenances of both low and high elevationP. tecunumanii.
B. I. Nyoka, P. Tongoona, C. M. Gumbie
openaire   +2 more sources

Provenance Productivity of High and Low Elevation Pinus tecunumanii in Zimbabwe [PDF]

open access: yesSilvae Genetica, 2010
Abstract The productivity potential of provenances and families of Pinus tecunumanii were determined across a range of environments in four orthogonal field trials in Zimbabwe. Provenances of P. tecunumanii from altitudes above 1500 m (High Elevation) in natural stands in Mexico and Central America were significantly superior (P < 0 ...
B. I. Nyoka, P. Tongoona, C. M. Gumbie
openaire   +2 more sources

The tolerance of Pinus patula × Pinus tecunumanii, and other pine hybrids, to Fusarium circinatum in greenhouse trials [PDF]

open access: yesNew Forests, 2012
The field survival of Pinus patula seedlings in South Africa is frequently below acceptable standards. From numerous studies it has been determined that this is largely due to the pitch canker fungus, Fusarium circinatum. Other commercial pines, such as P. elliottii and P.
Mitchell, R.G. (Richard Glen)   +4 more
openaire   +3 more sources

MORPHOMETRIC ANALYSIS ON CHROMOSOMES OF TROPICAL Pinus SPECIES [PDF]

open access: yesCiência Florestal, 2009
Karyotypic analysis of Pinus oocarpa Schiede ex Schltdl., Pinus patula Schltdl. & Cham. and of provenances Jócon Yoro, Las Camelias and San Rafael del Norte of Pinus tecunumanii Eguiluz & J. P.
Lília Rosário Ribeiro   +4 more
doaj   +4 more sources

Comparison of Methods for Estimating Mechanical Properties of Wood by NIR Spectroscopy

open access: yesJournal of Spectroscopy, 2018
Near-infrared (NIR) spectroscopy provides a rapid alternative to traditional methods of wood property assessment. For organizations who assess wood properties on a large scale, multisite, multispecies calibrations are of practical interest.
L. R. Schimleck   +3 more
doaj   +2 more sources

The quality and wood properties of 4 provenances of South-African-grown Pinus tecunumanii [PDF]

open access: yesAnnales des Sciences Forestières, 1994
Les proprietes du bois de 4 provenances de Pinus tecunumanii d'Afrique du Sud (ie Yucul, Camelias, Mountain Pine Ridge et Saint-Rafael) ont ete examinees et comparees a celles de 3 standards commerciaux, ie Pinus patula, Pinus elliottii et Pinus taeda. Des echantillons preleves sur 2 sites ont ete etudies. Les resultats sont presentes dans le tableau I.
FS Malan
openaire   +3 more sources

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