Results 21 to 30 of about 528 (161)

Invasiveness, ecological impacts and control of acacias in southwestern Europe – a review [PDF]

open access: yesWeb Ecology, 2020
The most prolific acacias in southern Europe (Acacia dealbata, A. melanoxylon and A. longifolia) are rapidly spreading in its westernmost area: Portugal and NW Spain, where congeners with invasion potential are already established.
C. Vieites-Blanco   +1 more
doaj   +1 more source

Acacia invasion triggers cascading effects above- and belowground in fragmented forests [PDF]

open access: yesNeoBiota
Invasive alien plants like Acacia species are key drivers of ecosystem change, with considerable effects on forest structure, nutrient cycling, and biodiversity. In the Mediterranean region, which is already vulnerable to challenges such as anthropogenic
Raquel Juan-Ovejero   +10 more
doaj   +3 more sources

Análisis de las poblaciones edáficas en suelos con sistemas silvopastoriles dedicados a la producción lechera, en la finca San Vicente, El Carmelo, Ecuador

open access: yesRevista Criterios, 2021
La presencia de árboles en un ecosistema de pastoreo aumenta las poblaciones edáficas y, por ende, las relaciones simbióticas. En los ecosistemas altoandinos de la zona norte del Ecuador existen escasas investigaciones sobre esta temática.
Diego Caicedo-Rosero   +3 more
doaj   +3 more sources

Seed bank and growth comparisons of native (Virgilia divaricata) and invasive alien (Acacia mearnsii and A. melanoxylon) plants: implications for conservation [PDF]

open access: yesPeerJ, 2018
Background Invasive alien plants with long-lived dormant seed banks and fast growth rates are difficult to manage. Acacia mearnsii and Acacia melanoxylon are two such invaders in the southern Cape of South Africa which occasionally co-occur with a native,
Stefan A. Goets   +2 more
doaj   +2 more sources

Hierarchical patterns of correlated mating in Acacia melanoxylon. [PDF]

open access: yesGenetics, 1991
Abstract Pollen of acacias is transported by insects as polyads, composite pollen grains. The polyad has enough pollen grains to fertilize all ovules within a flower and hence all seed within a pod may be full sibs. Isozyme markers were used to test this hypothesis in two populations of Acacia melanoxylon R.Br.
O, Muona, G F, Moran, J C, Bell
openaire   +2 more sources

Regeneration of Acacia melanoxylon plantlets in vitro

open access: yesSouth African Journal of Botany, 1987
Callus from juvenile material of mature Acacia melanoxylon R. Br. trees formed shoots on a Murashige and Skoog’s medium when supplemented with benzyladenine (1μM) and indole-3-acetic acid (1μM). lndole-3-butyric acid at 10μM was the best treatment for the induction and growth of roots on the in vitro-produced shoots.
Meyer, H.J., van Staden, J.
openaire   +1 more source

The influence of heartwood on the pulping properties of Acacia melanoxylon wood [PDF]

open access: yesJournal of Wood Science, 2008
The pulping wood quality of Acacia melanoxylon was evaluated in relation to the presence of heartwood. The sapwood and heartwood from 20 trees from four sites in Portugal were evaluated separately at 5% stem height level in terms of chemical composition and kraft pulping aptitude.
Lourenço, Ana   +3 more
openaire   +2 more sources

Fire effects on the ant community in areas of native and exotic vegetation

open access: yesSociobiology, 2019
Acacia melanoxylon is an invasive species of the mountain grassland of the southeastern part of the Buenos Aires province, Argentina. Fires are a natural disturbance, characteristic of the area, and favor the germination of this invasive plant.
Juan Manuel Arcusa
doaj   +1 more source

Micropropagación de árboles superiores de Acacia melanoxylon R.BR.= Micropropagation in superior Acacia melanoxylon R.BR Trees

open access: yesCiencia & Investigación Forestal, 2007
Acacia melanoxylon R.Br. es una especie forestal cuya madera exhibe interesantes características para su utilización industrial. Sumado a lo anterior, presenta también adecuadas tasas de crecimiento, que la posicionan como una alternativa de cultivo de gran valor para diversificar la producción forestal nacional.
Oriana Ortiz Novoa   +2 more
openaire   +2 more sources

Genetic and environmental variation in wood properties of Acacia melanoxylon [PDF]

open access: yesAnnals of Forest Science, 2011
& Context Australian blackwood (Acacia melanoxylon), is a fast-growing, high-quality, appearance-grade timber species native to eastern Australia. Some of its key wood properties are percentage heartwood, heartwood colour, basic density, wood stiffness and green moisture content. Variation in these properties affects log value, processing and marketing.
Bradbury, Gordon   +2 more
openaire   +2 more sources

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