Zobrazeno 1 - 10
of 48
pro vyhledávání: '"Francival Cardoso Felix"'
Autor:
Letícia Siqueira Walter, Francival Cardoso Felix, Antônio Carlos Nogueira, Daniel Salgado Pifano, Marcelle Almeida da Silva, Dagma Kratz
Publikováno v:
Revista Ceres, Vol 71 (2024)
ABSTRACT The seeds and seedlings morphological differentiation is a challenge in the early stages of plant growth. This study aims to describe the physical and morphological characteristics of seeds and seedlings of Jatropha mollissima to delimit dif
Externí odkaz:
https://doaj.org/article/38eceec8e5724fe89f68c19db90f764d
Publikováno v:
Journal of Seed Science, Vol 46 (2024)
Abstract: The identification of seeds from native species is a complex assessment due to the high Brazilian biodiversity and varied characteristics between species. The objective was to apply different machine learning classifiers associated with ima
Externí odkaz:
https://doaj.org/article/1466cd2d44bb4bc2829a92770d28e4d3
Autor:
Francival Cardoso Felix, Kyvia Pontes Teixeira das Chagas, Fernando dos Santos Araújo, Josenilda Aprigio Dantas de Medeiros, Fábio de Almeida Vieira, Salvador Barros Torres, Mauro Vasconcelos Pacheco
Publikováno v:
Acta Scientiarum: Agronomy, Vol 46, Iss 1 (2023)
Invasive species threaten crops and ecosystems worldwide. Therefore, we sought to understand the relationship between the geographic distribution of species populations and the characteristics of seeds using new techniques such as seed image analysis
Externí odkaz:
https://doaj.org/article/d05d34a26cfc434ca6a058d97f5c15ac
Autor:
Francisco Eudes da Silva, Márcio Dias Pereira, Josefa Patrícia Balduíno Nicolau, Francival Cardoso Felix, Gean Carlos da Silva Santos, Jayane Karine Pereira de Araújo, Robevania da Silva Alves Almeida, Riselane de Lucena Alcântara Bruno
Publikováno v:
Revista Ciência Agronômica, Vol 54 (2022)
ABSTRACT Establishing the appropriate procedures for conducting germination tests in forest species is important for marketing the seeds, especially species that are not yet included in the relevant Normative Instructions. The aim of this study was t
Externí odkaz:
https://doaj.org/article/063cf53daf274879bc5ac895728d8878
Autor:
Natália Saudade de Aguiar, Alexandre Dal Forno Mastella, Mônica Moreno Gabira, Letícia Siqueira Walter, Francival Cardoso Felix, Daniele Cristina Pereira de Matos, Ivar Wendling, Alessandro Camargo Angelo, Rozimeiry Gomes Bezerra Gaspar, Dagma Kratz
Publikováno v:
Pesquisa Florestal Brasileira, Vol 42 (2022)
This study aims to analyze the incorporation of basalt rock dust to a commercial substrate based on pine bark under two light conditions on initial growth of Monteverdia ilicifolia (Mart. Ex Reissek) Biral seedlings. We evaluated four proportions of
Externí odkaz:
https://doaj.org/article/b915816f771e44c89a93d8847255ba03
Autor:
Francival Cardoso Felix, Felipe Ligeski Mocelim, Salvador Barros Torres, Dagma Kratz, Richardson Ribeiro, Antônio Carlos Nogueira
Publikováno v:
Journal of Seed Science, Vol 43 (2021)
Abstract: Thousand-seed weight (TSW) is used to calculate the sowing density, number of seeds present in a sample, and predict seed size. Our aim was to establish an alternative methodology for thousand-seed weight determination in forest species usi
Externí odkaz:
https://doaj.org/article/5ed7dbb27fb54483969058fc0ef78f8b
Autor:
Francival Cardoso Felix, Fabrícia Nascimento de Oliveira, Narjara Walessa Nogueira de Freitas, Rômulo Magno Oliveira de Freitas, Imtinen Ben Haj Jilani, Salvador Barros Torres
Publikováno v:
Journal of Seed Science, Vol 43 (2021)
Abstract: Simira gardneriana (Rubiaceae) is a newly discovered tree species endemic to the Caatinga. For this reason, studies aimed at propagation, seed and seedlings analysis are essential for morphology, identification, classification, and conserva
Externí odkaz:
https://doaj.org/article/f30790036ad64aeead69e771c7aeea45
Autor:
Daniele Cristina Pereira de Matos, Francival Cardoso Felix, Mônica Moreno Gabira, Natália Saudade de Aguiar, Letícia Siqueira Walter, Alexandre Dal Forno Mastella, Dagma Kratz
Publikováno v:
Floresta e Ambiente, Vol 28, Iss 2 (2021)
Abstract The success of seedlings establishment for commercial planting and forest restoration depends on the availability of nutrients during seedlings production. The objective was to evaluate the efficiency in controlled-release fertilizer use in
Externí odkaz:
https://doaj.org/article/150113cce52247478e1fb5c4929b3aa2
Autor:
Francival Cardoso Felix, Josenilda Aprígio Dantas de Medeiros, Cibele dos Santos Ferrari, Mauro Vasconcelos Pacheco, Salvador Barros Torres
Publikováno v:
Journal of Seed Science, Vol 42 (2020)
ABSTRACT: Erythrina velutina Willd. (Fabaceae) is a tree species that bears social, ecological, and economic importance for northeastern Brazil, a region with frequent temperature variations. The objective of this work was to evaluate the mobilizatio
Externí odkaz:
https://doaj.org/article/e55fcd6dec344f10b919879253d68091
Autor:
Francival Cardoso Felix, Josenilda Aprígio Dantas de Medeiros, Cibele dos Santos Ferrari, Mauro Vasconcelos Pacheco, Salvador Barros Torres
Publikováno v:
Journal of Seed Science, Vol 42 (2020)
ABSTRACT: Erythrina velutina Willd. (Fabaceae) is a Brazilian native tree with economic, ecological and social potential. The aim of this study was to evaluate isoenzyme activity and changes in DNA integrity during germination of E. velutina at diffe
Externí odkaz:
https://doaj.org/article/7249c18d02444490a32d3541bf888f4f