Results 11 to 20 of about 1,040 (178)

Microenxertia e sua caracterização morfológica em Araucaria angustifolia Micrografting morphological characterization in Araucaria angustifolia

Ciência Rural, 2008
O objetivo deste trabalho foi determinar a melhor técnica para microenxertia em Araucaria angustifolia. Para isto, foram realizadas auto-enxertias em plantas germinadas in vitro, com 2, 6 e 12 meses de idade.
Justina Inês Anselmini, Flávio Zanette
doaj   +2 more sources

Recovery of Seed Quality and Germination Success Following Severe Wildfires in <i>Araucaria araucana</i> Forests of the Southern Andes. [PDF]

Ecol Evol
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 ...
Fuentes-Ramírez A, Díaz-Mons B, Vargas-Gaete R, Herrera H, Almonacid L.   +4 more
europepmc   +2 more sources

Occurrence of diazotrophic bacteria in Araucaria angustifolia [PDF]

Scientia Agricola, 2007
Araucaria angustifolia é uma espécie arbórea ameaçada de extinção e toda a comunidade viva das Florestas de Araucária deve ser estudada com a finalidade de sua preservação. Bactérias diazotróficas apresentam grande importância para a manutenção de ecossistemas, mas sua ocorrência nunca foi pesquisada em araucária.
Neroni, Rafaela de Fátima, Cardoso, Elke Jurandy Bran Nogueira   +1 more
openaire   +3 more sources

Microwave and convective air on drying of araucaria angustifolia seeds

Semina: Ciências Agrárias, 2021
Microwave drying has shorter processing times compared with convection drying, which results in high-quality products and reduced energy consumption. The objective of this study is to evaluate the drying process of Araucaria angustifolia seeds using hot air at atmospheric pressure by applying microwaves (300 W and 500 W), and comparing them with the ...
Naiara Nobre dos Reis, Joyce Yumi Taira, Leda Battestin Quast, Ernesto Quast, Antonio Marsaioli Junior, Bruna da Silva Garais   +5 more
openaire   +3 more sources

Genetic diversity and divergence applied to Enviromental services for Araucaria angustifolia (Brazil) [PDF]

BMC Proc, 2011
Humans derive many utilitarian benefits from the environmental services of biotas and ecosystems.Yet ecosystem, species and genetic levels is increasingly lost from agricultural landscapes mainly due to maximisation of production [1,2]. The genetic variability is a result of several forces including mutation, recombination and gene flow.
Medina-Macedo L, Bittencourt J, Soccol C, Lacerda A.   +3 more
europepmc   +4 more sources

Somatic embryogenesis in Araucaria angustifolia

Biologia plantarum, 2008
Immature and mature zygotic embryos were used as source of explants for induction of somatic embryogenesis in Araucaria angustifolia. Embryogenic cultures (EC) were only obtained from immature zygotic embryos. Basic medium, carbon source, and genotype showed a significant influence on the formation of stage I somatic embryos (SE).
A. L. Wendt dos Santos, N. Steiner, M. P. Guerra, K. Zoglauer, B. M. Moerschbacher   +4 more
openaire   +1 more source

Central action of Araucaria angustifolia seed lectin in mice [PDF]

Epilepsy & Behavior, 2009
Possible central nervous system effects of the gymnosperm lectin from Araucaria angustifolia seeds were studied in seizure and open field tests. Male Swiss mice were administered saline (control), lectin (0.1, 1, and 10 mg/kg), flumazenil (1 mg/kg), or diazepam (1 mg/kg) intraperitoneally.
Silvânia Maria Mendes, Vasconcelos, Silvane R, Lima, Paula Matias, Soares, Ana Maria Sampaio, Assreuy, Francisca Cléa Florenço, de Sousa, Rodrigo de Freitas Guimarães, Lobato, Germana Silva, Vasconcelos, Tatiane, Santi-Gadelha, Eduardo Henrique Salviano, Bezerra, Benildo Sousa, Cavada, Manoel Cláudio Azevedo, Patrocínio   +10 more
openaire   +2 more sources

A importância das unidades de conservação na manutenção da diversidade genética de araucária Araucaria angustifolia no Estado de Santa Catarina

Biodiversidade Brasileira, 2012
Araucaria angustifolia (Bertol.) Kuntze, conhecida como araucária, é uma árvore nativa da Mata Atlântica, característica da tipologia Floresta Ombrófila Mista. Espécie de importância econômica e ecológica, encontra-se ameaçada de extinção.
Tiago Montagna, Diogo Klock Ferreira, Felipe Steiner, Fernando André Loch Santos da Silva, Ricardo Bittencourt, Juliano Zago da Silva, Adelar Mantovani, Maurício Sedrez dos Reis   +7 more
doaj   +3 more sources