Results 21 to 30 of about 31,217 (261)

Logging Affects Genetic Diversity Parameters in an Araucaria angustifolia Population: An Endangered Species in Southern Brazil

Forests, 2023
Araucaria angustifolia is an endangered species with more than 97% of its natural populations extinct. Logging of the species in the few remaining natural populations is highly restricted, though not readily accepted by farmers and logging companies ...
R. H. Roque, A. Sebbenn, D. Boshier, A. F. Filho, E. Tambarussi   +4 more
semanticscholar   +1 more source

Simulating Sustainable Forest Management Practices Using Crown Attributes: Insights for Araucaria angustifolia Trees in Southern Brazil

Forests, 2023
Araucaria angustifolia (Bertol.) Kuntze, commonly known as Brazilian pine, is a significant tree species in the Brazilian flora that once covered an area of 200,000 km2 in the Southern region.
César Augusto Guimarães Finger, Emanuel Arnoni Costa, A. Hess, V. Liesenberg, P. C. Bispo   +4 more
semanticscholar   +1 more source

Polinização controlada em Araucaria angustifolia [PDF]

CERNE, 2012
Neste trabalho, objetivou-se determinar uma metodologia para polinização controlada em Araucaria angustifolia, visando ao melhoramento genético da espécie e o aumento da produção de pinhões, por meio do manejo com polinizações suplementares. Para tanto, foi desenvolvida uma metodologia de polinização controlada por meio de vários experimentos ...
Anselmini, Justina Inês, Zanette, Flávio   +1 more
openaire   +3 more sources

Polyamines, IAA and ABA during germination in two recalcitrant seeds: Araucaria angustifolia (Gymnosperm) and Ocotea odorifera (Angiosperm). [PDF]

Ann Bot, 2011
Pieruzzi FP, Dias LL, Balbuena TS, Santa-Catarina C, dos Santos AL, Floh EI.   +5 more
europepmc   +2 more sources

Occurrence of diazotrophic bacteria in Araucaria angustifolia [PDF]

Scientia Agricola, 2007
Araucaria angustifolia is an environmentally threatened tree and the whole biota of the Araucaria Forest should be investigated with the aim of its preservation. Diazotrophic bacteria are extremely important for the maintenance of ecosystems, but they have never been studied in Araucaria Forests.
Neroni, Rafaela de Fátima, Cardoso, Elke Jurandy Bran Nogueira   +1 more
openaire   +3 more sources

Individual Tree Basal Area Increment Models for Brazilian Pine (Araucaria angustifolia) Using Artificial Neural Networks

Forests, 2022
This research aimed to develop statistical models to predict basal area increment (BAI) for Araucaria angustifolia using Artificial Neural Networks (ANNs). Tree species were measured for their biometric variables and identified at the species level.
Lorena Oliveira Barbosa, Emanuel Arnoni Costa, C. Schons, César Augusto Guimarães Finger, V. Liesenberg, P. C. Bispo   +5 more
semanticscholar   +1 more source

Using high-density UAV-Lidar for deriving tree height of Araucaria Angustifolia in an Urban Atlantic Rain Forest

Urban Forestry & Urban Greening, 2021
Urban forest remnants contribute to climate change mitigation by reducing the amount of carbon dioxide in urban areas. Hence, understanding the dynamics and the potential of urban forests as carbon pools is crucial to propose effective policies ...
E. M. da Cunha Neto, F. Rex, H. F. P. Veras, M. Moura, C. Sanquetta, P. Käfer, M. Sanquetta, A. Zambrano, E. Broadbent, A. Corte   +9 more
semanticscholar   +1 more source

BIOMASS PRODUCTION AFTER CLEAR CUTTING IN IN A 27-YEAR-OLD STAND OF Araucaria angustifolia (Bert.) O. Ktze. IN QUEDAS DO IGUAÇU, PR

Ciência Florestal, 2011
This study, conducted in a 27-year-old Araucaria angustifolia stand in the municipality of Quedas do Iguaçu (PR) county, aimed to estimate tree components, understory and accumulated litter biomasses.
Mauro Valdir Schumacher, Rudi Witschoreck, Francine Neves Calil, Vicente Guilheme Lopes, Márcio Viera   +4 more
doaj   +1 more source

FIRST RUPESTRIAN REPRESENTATIONS OF ARAUCARIA ANGUSTIFOLIA IN SOUTHERN BRAZIL

Caderno de Geografia, 2023
This paper presents the first recorded rupestrian representations of Araucaria angustifolia (Bertol.) Kuntze. Located in southern Brazil, the archaeological finding and its substrate are characterized in detail, a discussion being held on the ethnic ...
H. Pontes, Rodrigo Junghans, Laís Luana Massuqueto, Nair Fernanda Burigo Mochiutti, Rodrigo Aguilar Guimarães, Alessandro Giulliano Chagas Silva, Adriane Ribeiro Silva   +6 more
semanticscholar   +1 more source

Relações dendrométricas de Araucaria angustifolia

Pesquisa Florestal Brasileira, 2010
The objective of this research was to study the relationship between the DBH with crown diameter,stump diameter and inside bark diameter at breast height of Araucaria angustifolia (Bert.) O, Kuntze. The data from the mentioned variables came from 162 Araucaria distributed in the whole amplitude of diameter at breast height in a Mixed Ombrophylous ...
Rodrigo Geroni Mendes Nascimento, Sebastião do Amaral Machado, Décio José de Figueiredo, Alan Lessa Derci Augustynczik, Ricardo Cavalheiro   +4 more
openaire   +2 more sources