Results 71 to 80 of about 38,687 (224)

Compostos bioativos e atividade antioxidante do café (Coffea arabica L.) Coffee (Coffea arabica L.) bioactive compounds and antioxidant activity

Ciência e Agrotecnologia, 2010
Conduziu-se este trabalho, com a proposta de avaliar o potencial antioxidante de dois padrões da bebida do café (rio e mole), verdes e torrados, utilizando modelos in vitro. Foram determinados o teor de fenólicos totais, ácido clorogênico (ácido 5-cafeoilquínico) e cafeína das bebidas.
Abrahão, Sheila Andrade, Pereira, Rosemary Gualberto Fonseca Alvarenga, Duarte, Stella Maris da Silveira, Lima, Adriene Ribeiro, Alvarenga, Dalila Junqueira, Ferreira, Eric Batista   +5 more
openaire   +2 more sources

Growth, production, and bean quality of Coffea arabica as affected by interspecific grafting : Consequences for rootstock breeding [PDF]

, 2001
In order to avoid nematode damage to roots of Coffea arabica L. in Latin America, a common practice is interspecific grafting on C. canephora var. Robusta (Pierre) rootstocks. The performance of two C.
Bertrand, Benoît, Eskes, Albertus, Etienne, Hervé   +2 more
core   +1 more source

Yield, stability, and plasticity of Arabica coffee genotypes under contrasting pruning systems

Agronomy Journal, Volume 118, Issue 3, May/June 2026.
Abstract Coffee yield instability caused by biennial bearing causes coffee yield instability, reducing production predictability and farm income. Biennial drastic pruning (Zero Crop), which alternates harvest and no‐harvest years, has been proposed to reduce this instability, but its benefits depend on genotype performance under contrasting management.
Weverton Pereira Rodrigues, Henrique Duarte Vieira, Rafael Nunes de Almeida, Fábio Luiz Partelli, Dimmy Herlen Silveira Gomes Barbosa, Antonio Santana Batista de Oliveira Filho   +5 more
wiley   +1 more source

Single-locus inheritance and partial linkage map of Coffea arabica L.

Crop Breeding and Applied Biotechnology, 2004
In a backcross population of the allotetraploid Coffea arabica L. the loci with diploid-like segregation were predominant, although a few loci with tetrassomic inheritance or distortion of the expected segregation were also observed.
Terezinha Aparecida Teixeira-Cabral, Ney Sussumu Sakiyama, Laércio Zambolim, Antonio Alves Pereira, Ivan Schuster   +4 more
doaj  

Estudo anatômico de cafeeiros enxertados Anatomic study of grafted coffee trees

Ciência e Agrotecnologia, 2009
Neste trabalho, objetivou-se, avaliar as características anatômicas do caule de cafeeiros enxertados, auto-enxertados e pé-franco. Foram utilizadas as cultivares Catucaí Amarelo 2 SL e Topázio MG 1190 (Coffea arabica L.) e o porta-enxerto Apoatã IAC 2258
Fábio Pereira Dias, Daniel Melo de Castro, Antônio Nazareno Guimarães Mendes, Haroldo Silva Vallone, Alex Mendonça de Carvalho, Gladyston Rodrigues Carvalho   +5 more
doaj   +1 more source

Effects of shade on growth, production and quality of coffee (Coffea arabica) in Ethiopia [PDF]

, 2011
The research work was conducted to evaluate the effect of shade on growth and production of coffee plants. To achieve this, growth and productivity of coffee plants growing under shade trees were compared with those of coffee plants growing under direct ...
Bote, A.D., Struik, P.C.
core   +1 more source

Exploring portable NIR spectroscopy in transmittance and reflectance modes for the authentication of Brazilian coffees with geographical indications

Journal of the Science of Food and Agriculture, Volume 106, Issue 7, Page 4038-4048, May 2026.
Abstract BACKGROUND Geographical indications (GIs) certify the link between coffee origin and quality, enabling premium pricing and protecting producers. However, the high market value of GI coffees increases their vulnerability to fraud, underscoring the need for reliable and practical authentication methods.
Leticia Tessaro, Yhan da Silva Mutz, Mikaela Martins de Bem, Natália de Oliveira Souza, Cleiton Antônio Nunes   +4 more
wiley   +1 more source

O dimorfismo dos ramos em Coffea arabica L. [PDF]

Bragantia, 1950
O dimorfismo dos ramos tem sido observado em vários gêneros de plantas, tais como Gossypium, Theobroma, Hedera, Musa, Araucária, Castilla, bem como em Coffea. Tal fenômeno se carateriza por uma diferenciação somática, que, na maioria dos casos, é permanente, podendo-se propagar as diferentes formas pela reprodução vegetativa.
Carvalho, A., Krug, C. A., Mendes, J. E. T.   +2 more
openaire   +3 more sources

Características fisiológicas e de crescimento de cafeeiro sombreado com guandu e cultivado a pleno sol Physiological characteristics and growth of coffee plants grown under shade of pigeonpea and unshaded

Pesquisa Agropecuária Brasileira, 2003
O conhecimento dos efeitos do sombreamento sobre a fisiologia de cafeeiros é importante para se determinar níveis ótimos de radiação e temperatura, bem como para subsidiar estudos sobre o crescimento de plantas sombreadas, a fim de determinar a ...
Heverly Morais, Celso Jamil Marur, Paulo Henrique Caramori, Ana Maria de Arruda Ribeiro, José Carlos Gomes   +4 more
doaj   +1 more source

RNA-Seq analysis and de novo transcriptome assembly of Coffea arabica and Coffea eugenioides : P0068 [PDF]

, 2013
Coffee is one of the most important agricultural commodites in the world. Coffea arabica, an allotetraploid from a recent hybridization of two diploid species (C.canephora and C.eugenioides) is responsible for 70% of world commercial production.
Carazzolle, Marcelo Falsarella, Charmetant, Pierre, Domingues, Douglas S., Ivamoto, Suzana Tiemi, Leroy, Thierry, Mishima, Jaime Hikaru, Protasio Pereira, Luiz Filipe, Reis Júnior, Osvaldo, Yuyama, Priscilla Mary   +8 more
core