Results 21 to 30 of about 3,905 (216)

Pollen morphology of Nothofagus (Nothofagaceae, Fagales) and its phylogenetic significance [PDF]

open access: yes, 2016
Nothofagaceae (southern beeches) are a relatively small flowering plant family of trees confined to the Southern Hemisphere. The fossil record of the family is abundant and it has been widely used as a test case for the classic hypothesis that Antarctica,
Barreda, Viviana Dora   +4 more
core   +2 more sources

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

The delayed effect of climatic conditions on pre‐fledging nestling haematocrit in a suboscine species in Patagonia

open access: yesJournal of Avian Biology, Volume 2023, Issue 9-10, September/October 2023., 2023
Haematocrit, the proportion of blood comprising erythrocytes, is often used as a proxy of individual condition. Nestling haematocrit is influenced by several factors but ambient temperature is generally agreed as a key driver. It is unclear which day(s) in embryonic or nestling development are most influential in determining pre‐fledgling haematocrit ...
Joseph E. Badji-Churchill   +5 more
wiley   +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

Guanacos’ and domestic livestock’s summer diets comparison in ecotone of “Tierra del Fuego” (Argentina) [PDF]

open access: yes, 2018
At present, it is believed that the population of guanacos has increased in the “Isla Grande de Tierra del Fuego”, arising a conflict with livestock and forestry activities.
Alvarenga, Eugenia Celeste   +6 more
core   +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

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

índice de sítio diamétrico: um método alternativo para estimar a qualidade do sítio em florestas de Nothofagus obliqua E N. alpina [PDF]

open access: yes, 2016
The first step for constructing models of tree growth and yield is site quality assessment. To estimate this attribute, several methodologies are available in which site index (SI) is a standard one.
Attis Beltran, Hernan   +4 more
core   +4 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

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