Results 31 to 40 of about 1,019 (178)

Anatomical and Physicochemical Characterization of the Araucaria angustifolia Seed Coat [PDF]

Floresta e Ambiente, 2019
ABSTRACT Seed coat plays an important role in the embryo protection and seed germination. This study aimed to characterize the anatomical structure, histochemical and physicochemical aspects of the seed coat of Araucaria angustifolia Kuntze. Light and scanning microscopy usual procedures, and histochemical tests were used to describe and characterize ...
Danielle Affonso Sampaio, Rosilei Aparecida Garcia, Helena Regina Pinto Lima   +2 more
openaire   +4 more sources

Decoupling of Taxonomic and Functional Recovery in a Multi‐Decadal Mixed Araucaria Forest Chronosequence

Austral Ecology, Volume 51, Issue 8, August 2026.
ABSTRACT Understanding how different biodiversity dimensions recover following disturbance is critical for interpreting forest successional trajectories. We examined this question in a protected remnant of Araucaria Mixed Forest (AMF) in subtropical southern Brazil, a frost‐prone montane system with multiple anthropogenic disturbance legacies.
Samuel de Barros Silva, Ana Carolina da Silva, Pedro Rates Vieira, Adam Roger Slabadack, Maria Julia Carvalho Cruz, Karla Juliana Silva da Costa, Gionei Chermach, Pedro Higuchi   +7 more
wiley   +1 more source

Avaliação da qualidade do compensado fenólico de Eucalyptus grandis [PDF]

Ciência Florestal, 2006
This research’s main objective is to evaluate the quality of Eucalyptus grandis’ manufactured plywood for external use. In order to make comparisons, plywood of Pinus taeda and Araucária angustifolia were also manufactured, using phenol-formaldehyde ...
Setsuo Iwakiri, Antonio Razera Neto, Benedito Carlos De Almeida, Cândido Petro Biasi, Daniel Chies, Francisco Prado Guisantes, José Antonio Franzoni, Patrícia Aparecida Rigatto, Wilson Paulo Bettega   +8 more
doaj   +1 more source

Comparison of seedling growth among three co-occurring varieties of Araucaria angustifolia (Bertol.) Kuntze under greenhouse conditions

Acta Botânica Brasílica, 2010
Araucaria angustifolia (Bertol.) Kuntze is a tall, long-lived tree species, which grows as an emergent tree in the araucaria forests of southern Brazil. Four varieties have been described for this species, and three of them were selected for this study: "
André Luiz Coutinho, Lúcia Rebello Dillenburg   +1 more
doaj   +1 more source

Scientific novel: Araucaria angustifolia branch may be converted into orthotropic trunk by grafting

Revista Ceres, 2020
Grafting technique has been presented as an alternative for Araucaria angustifolia propagation. However, vegetative rescuing mature trees and obtaining large numbers of propagules is difficult, because the use of branch grafts has not been indicated due ...
Valdeci Constantino, Ivar Wendling, Flávio Zanette   +2 more
doaj   +1 more source

Recovery of Seed Quality and Germination Success Following Severe Wildfires in Araucaria araucana Forests of the Southern Andes

Ecology and Evolution, Volume 16, Issue 7, July 2026.
We assessed post‐fire germination of Araucaria araucana in the southern Andes and found that seed viability and germination increased markedly (from 65% to 90%) between 1 and 8 years after a severe wildfire. Improved germination at longer time‐since‐fire reflects a recovery of reproductive capacity in this ecologically and culturally significant ...
Andrés Fuentes‐Ramírez, Bernardita Díaz‐Mons, Rodrigo Vargas‐Gaete, Héctor Herrera, Leonardo Almonacid   +4 more
wiley   +1 more source

Fluctuating asymmetry in spider‐hunting wasps as a possible indicator of stress in Brazilian Atlantic Forest landscapes Assimetria flutuante em vespas caçadoras de aranhas como possível indicador de estresse em paisagens da Mata Atlântica brasileira

Ecological Entomology, Volume 51, Issue 3, Page 558-569, June 2026.
Agricultural cover was positively associated with fluctuating asymmetry in Trypoxylon opacum, suggesting a possible increase in developmental instability in intensively managed landscapes. Wing size was positively related to forest cover and negatively related to agricultural cover, indicating that forested landscapes may promote larger body size ...
Luana Vieira Carlin dos Santos, Jean Pablo Alves de Deus, Milton Cezar Ribeiro, Maria Luisa Tunes Buschini   +3 more
wiley   +1 more source

QUALIDADE FISIOLÓGICA DE SEMENTES DE Araucaria angustifolia (Bertol.) Kuntze SUBMETIDAS A DIFERENTES CONDIÇÕES DE ARMAZENAMENTO E A ESCARIFICAÇÃO [PDF]

Ciência Florestal, 2006
As sementes de Araucaria angustifolia (Bertol.) Kuntze (pinheiro-do-Paraná) são recalcitrantes e, portanto, perdem rapidamente a viabilidade após a colheita, o que dificulta a sua utilização na produção de mudas. Este trabalho teve como objetivos avaliar
Álvaro Valente Caçola, Cassandro Vidal Talamini do Amarante, Frederico Dimas Fleig, Clenilso Sehnen Mota   +3 more
doaj  

Improved method for isolation of coupled mitochondria of Araucaria angustifolia (Bert.) O. Kuntze

Brazilian Archives of Biology and Technology, 2004
A method for the isolation of coupled mitochondria from the callus of Araucaria angustifolia is described for the first time. Mitochondria were isolated from embryogenic callus of A. angustifolia. They were metabolically active, able to sustain oxidative
André Bellin Mariano, Leonardo Kovalhuk, Caroline Valente, Juliana Maurer-Menestrina, Adaucto Bellarmino Pereira-Netto, Miguel Pedro Guerra, Eva Gunilla Skare Carnieri   +6 more
doaj   +1 more source

Stylosanthes cv. Campo Grande response to Bradyrhizobium inoculation in an Amazon Cerrado Oxisol

Agronomy Journal, Volume 118, Issue 3, May/June 2026.
Abstract Species of the genus Stylosanthes show great potential for use in mixed pastures and as green manure due to their symbiotic potential in symbiosis with diazotrophic bacteria, particularly Bradyrhizobium. These herbaceous legumes can improve pasture quality and contribute to sustainability.
Josimar da Silva Chaves, Krisle Da Silva, Segundo Urquiarga, Eliane do Nascimento Cunha Farias, Jerri Édson Zilli   +4 more
wiley   +1 more source