Results 51 to 60 of about 2,018 (158)

Development of a Sustainable and Practical Natural Deep Eutectic Solvent‐based Ultrasound‐assisted Microextraction Method for Determining Fipronil and Its Degradation Products in Brewed Coffee

open access: yesJournal of Separation Science, Volume 49, Issue 5, May 2026.
ABSTRACT Fipronil and its degradation products, such as fipronil sulfide and fipronil desulfinyl, exhibit toxicological concerns and require reliable analytical methods for monitoring in complex matrices such as brewed coffee. This study aimed to develop a novel ultrasound‐assisted liquid–liquid microextraction approach using a natural deep eutectic ...
Natália Stram Bierhals   +4 more
wiley   +1 more source

Molecular characterization of parents and hybrid progenies of conilon coffee

open access: yesAnais da Academia Brasileira de Ciências, 2021
The objective of the present work was the molecular characterization of 11 parents and 101 hybrid progenies of conilon coffee, obtained through diallel crosses from the breeding program of the Instituto Capixaba de Pesquisa, Assistência Técnica e ...
LUCIMARA C. DE SOUZA   +6 more
doaj   +1 more source

Effect of land use change on Melolonthidae (Coleoptera: Scarabaeoidea) beetle communities in the deforestation arc of the Brazilian Amazon

open access: yesInsect Conservation and Diversity, Volume 19, Issue 2, Page 404-419, March 2026.
Habitat transformation in Amazon due to agriculture expansion impairs Melolonthidae diversity. Assemblage response towards habitat transformation are group‐dependent. Although highly disturbed, Amazon arc of deforestation region dwells sensitive insect assemblages. Abstract Although the Amazon provides crucial goods and ecosystem services for humanity,
Kleyton Rezende Ferreira   +4 more
wiley   +1 more source

Genetic variability in conilon coffee related to grain attributes in an irrigated crop in the Cerrado [PDF]

open access: yesPesquisa Agropecuária Brasileira, 2019
: The objective of this work was to quantify the genetic variability of 213 conilon coffee accessions of the Robusta Tropical cultivar, based on chemical characteristics related to the quality of green coffee beans, as well as to identify promising ...
Felipe Augusto Alves Brige   +6 more
doaj   +1 more source

Micronutrients in Leaves of Conilon Coffee Fertilized With Molybdenum and Nitrogen Fertilization During Two Production Cycles

open access: yesInternational Journal of Agronomy, Volume 2026, Issue 1, 2026.
Coffea canephora has a high requirement for micronutrients, due to its high yield potential. Leaf micronutrient contents are influenced by ionic interactions, which can affect nutrient availability in the soil solution and root uptake. This study, performed during two productive cycles under field conditions, aimed to evaluate the effects of ...
Thiago Lopes Rosado   +7 more
wiley   +1 more source

Produção de matéria seca, crescimento radicular e absorção de cálcio, fósforo e alumínio por coffea canephora e coffea arabica sob influência da atividade do alumínio em solução Dry matter production, root growth and calcium, phosphorus and aluminum absorption by coffea canephora and coffea arabica under influence of aluminum activity in solution

open access: yesRevista Brasileira de Ciência do Solo, 2008
Este trabalho teve como objetivo avaliar a produção de matéria seca, o crescimento radicular e a absorção e distribuição do Ca, P e Al nas folhas, no caule e nas raízes de dois clones de café conilon (Coffea canephora) (Mtl 25 e Mtl 27) e de uma ...
Edson Marcio Mattiello   +6 more
doaj   +1 more source

Phenology of Coffea canephora from different maturation cycles

open access: yesAgronomy Journal, Volume 117, Issue 4, July/August 2025.
Abstract The vegetative and reproductive development of Coffea canephora is affected by climatic variations; however, how environmental signals affect its phenology, especially across different maturation genotypes, remains poorly understood. In this study, we investigated the effects of climatic conditions on the vegetative growth, flowering, and ...
Jeane Crasque   +7 more
wiley   +1 more source

Characterization and genetic diversity of Coffea canephora accessions in a germplasm bank in Espírito Santo, Brazil

open access: yesCrop Breeding and Applied Biotechnology, 2021
The state of Espírito Santo is the major producer of Coffea canephora in Brazil. Knowledge of genetic reserves is fundamental to plant breeding. Therefore, the present study characterized and analyzed the genetic diversity of 600 C.
Maria Amélia Gava Ferrão   +7 more
doaj  

Distribuição do sistema radicular de cafeeiro conilon irrigado e não irrigado

open access: yesPesquisa Agropecuária Brasileira, 2015
Resumo: O objetivo deste trabalho foi avaliar a distribuição do sistema radicular do cafeeiro conilon (Coffea canephora) irrigado e não irrigado. Utilizaram-se plantas de conilon da variedade clonal Emcapa 8111, genótipo 02, com cinco anos de idade ...
André Monzoli Covre   +3 more
doaj   +1 more source

Como é modulado o desenvolvimento frutífero de Coffea canephora pelo abastecimento de água? Uma análise das curvas de crescimento para sistemas irrigados e não irrigado

open access: yesSemina: Ciências Agrárias, 2022
Os cafeeiros conilon podem apresentar padrões divergentes para o acúmulo de matéria seca e desenvolvimento de frutos, sejam eles resultantes de fatores genéticos ou ambientais.
André Monzoli Covre   +8 more
doaj   +1 more source

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