Results 21 to 30 of about 429 (162)

Phylogenetic relationships and time-calibration of the South American fossil and extant species of southern beeches (Nothofagus) [PDF]

open access: yesActa Palaeontologica Polonica, 2018
The genus Nothofagus is considered as one of the most interesting plant genera, not only for the living species but also due to the fossil evidence distributed throughout the Southern Hemisphere. Early publications postulated a close relationship between
Bárbara Vento, Federico A. Agraín
doaj   +1 more source

Relationships among livestock, structure, and regeneration in Chilean Austral Macrozone temperate forests

open access: yesTrees, Forests and People, 2023
A Macrozone is a socioecological region with shared geographic and demographic characteristics. Within the Chilean Austral Macrozone (43° to 56° SL), the native temperate forests serve as a crucial resource, offering multiple ecosystem services to local ...
Alejandro Huertas Herrera   +5 more
doaj   +1 more source

Micropropagación de Nothofagus pumilio (Poepp. et Endl.) Krasser

open access: yesBosque, 1997
Nothofagus pumilio is the most important forest species in South Patagonia. The present work was carried out to determine the suitable cultural conditions for in vitro propagation through shoot culture of saplings and a mature tree. The days after sprouting and the presence of the bud scales were critical for culture initiation.
Martínez Pastur, Guillermo   +1 more
openaire   +2 more sources

Comparación de técnicas para el aislamiento y recuento de levaduras y hongos dimórficos del filoplano de Nothofagus pumilio. / Comparison of techniques for isolation and enumeration of yeast and yeast like fungi from Nothofagus pumilio phylloplane.

open access: yesBoletín de la Sociedad Argentina de Botánica, 2013
Summary: Comparison of techniques for isolation and enumeration of yeast and yeast like fungi from Nothofagus pumilio phylloplane. The phylloplane is an important habitat for microorganisms. This study aimed to test different methods for the isolation of
Muñoz Mario   +2 more
doaj   +1 more source

MODIS Time Series Reveal New Maximum Records of Defoliated Area by Ormiscodes amphimone in Deciduous Nothofagus Forests, Southern Chile

open access: yesRemote Sensing, 2023
Outbreaks of the Ormiscodes amphimone moth are among the largest biotic disturbances in South America, defoliating vast areas of native Nothofagus pumilio forests in the Chilean and Argentinian Patagonia in the last decade.
Sergio A. Estay   +5 more
doaj   +1 more source

Insect antifeedant compounds from Nothofagus dombeyi and N. pumilio

open access: yesPhytochemistry, 2004
A bioassay-guided purification of the extracts of Nothofagus dombeyi and N. pumilio leaves yielded several triterpenes and flavonoids including 2-O-acetylmaslinic acid, 3-O-acetyl 20,24,25-trihydroxydammarane, and 3,20,24,25-tetrahydroxydammarane as new natural products.
Thoison, Odile   +3 more
openaire   +3 more sources

Photosynthetic response to different light intensities and water status of two main Nothofagus species of southern Patagonian forest, Argentina

open access: yesJournal of Forest Science, 2009
Net photosynthetic rate (A) and stomatal conductance (gs) of leaves of Nothofagus pumilio and N. an-tarctica seedlings were measured at different photosynthetic photon flux densities (PPFDs, 20, 150, 250, 500, 750, 1,000, 1,500 and 2,200 μmol/m2/s) and ...
P. L. Peri   +2 more
doaj   +1 more source

Morphological and architectural features of young Nothofagus pumilio (Poepp. & Endl.) Krasser (Fagaceae) [PDF]

open access: yesBotanical Journal of the Linnean Society, 1999
The morphology and architecture of young Nothofagus pumilio plants growing as understorey and in a cleared area were assessed. Length, number of internodes, presence of branches and apex condition were registered for each growth unit (GU) in the sampled plant. GUs were grouped according to branching order and age of the bearing axis. Understorey plants
Puntieri, J.   +4 more
openaire   +4 more sources

Impacts of fire severity and cattle grazing on early plant dynamics in old-growth Araucaria-Nothofagus forests

open access: yesForest Ecosystems, 2019
Background Fire has historically shaped the dynamics of Araucaria araucana-Nothofagus pumilio forests in the Andean region of South America. Nevertheless, human disturbances and stronger drought events have resulted in increased occurrence and severity ...
Paola Arroyo-Vargas   +3 more
doaj   +1 more source

Analysis of Nothofagus pumilio and Nothofagus antarctica Hybridization Zones in Southern Chile

open access: yes, 2023
Interspecific hybridization is documented in various tree species, including the three types of Nothofagus species (N. pumilio, N. antarctica, and N. betuloides) unique to Southern Patagonia. Previous studies found that hybridization results in developmental instability, which is reflected in the increase of leaf fluctuating asymmetry.
Jung, Riley   +2 more
openaire   +1 more source

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