Results 101 to 110 of about 38,224 (219)

Constituintes químicos e teor de extrato aquoso de cafés arábica (coffea arabica l.) e conilon (coffea canephora pierre) torrados Chemical Evaluation and Aqueous extract of roasting coffes (Coffea arabica L.) and conilon (Coffea canephora Pierre)

open access: yesCiência e Agrotecnologia, 2003
Conduziu-se este trabalho com o objetivo de quantificar e caracterizar a composição química de cafés arábica e robusta de safras diferentes e seus efeitos na qualidade do café torrado.
Simone Miranda Fernandes   +4 more
doaj   +1 more source

Taxonomia de Coffea arabica L.: III - Coffea arabica L. var. anormalis

open access: yes, 1950
A espécie Coffea arabica L. é polimorfa ; vinte e cinco variedades e quatro formas já se acham descritas. As formas homozigotas para fatores genéticos novos estão sendo descritas como variedades, não se considerando como tais as numerosas recombinações, obtidas no decurso dos trabalhos relativos à genética dessa espécie.
Krug, C. A.   +2 more
openaire   +2 more sources

Analysis of DREB1D gene sequence in different Coffea genotypes : S03P07 [PDF]

open access: yes, 2013
In several plant species, the DREB genes play a key role in responses to abiotic stress. Since the development of molecular markers is one of the major goals for accelerating breeding programs, a study was done to evaluate the sequence variability of the
Alves, Gabriel Sergio Costa   +7 more
core  

Multiplication of embryogenic calli in Coffea arabica L.=Indução e multiplicação de calos embriogênicos de Coffea arabica L.

open access: yesActa Scientiarum: Agronomy, 2012
The goal of this project was to evaluate the embryogenic callus induction of two Coffea arabica clones selected for their characteristics of rust resistance and high yield, as well as to compare their multiplication in two different media under both solid and liquid cultivation conditions. The protocol described by Teixeira et al.
João Batista Teixeira   +4 more
openaire   +1 more source

Annotated world bibliography of host fruits of Bactrocera latifrons (Hendel) (Diptera: Tephritidae) [PDF]

open access: yes, 2013
Bactrocera latifrons (Hendel) (Diptera: Tephritidae) infests fruits and vegetables of a number of different plant species, with host plants primarily found in the plant families Solanaceae and Cucurbitaceae. Although B.
Liquido, Nicanor J., McQuate, Grant T.
core  

Interaction between Coffee (Coffea arabica L.) and Intercropped Herbs under Field Conditions in the Sierra Norte of Puebla, Mexico

open access: yesJournal of Agriculture and Rural Development in the Tropics and Subtropics, 2008
Caffeine released from decaying seeds and leaves accumulates in a soluble form in the soil. The compound is known to inhibit mitosis, reduce the access of nutrients and water to surrounding plants which is one of limiting problems in intercropped coffee ...
Alex Pacheco Bustos   +2 more
doaj  

Functional analysis of CcDREB1D promoter region from two genotypes of Coffea canephora through genetic transformation of Nicotiana tabacum : S03P08 [PDF]

open access: yes, 2013
Although some studies in plant physiology resulted in a better understanding of the mechanisms involved in drought tolerance in coffee, knowledge about the metabolic and molecular changes involved in the response of the coffee plant to water deficit ...
Alves, Gabriel Sergio Costa   +4 more
core  

Extrato de Coffea racemosa como alternativa no controle do bicho-mineiro do cafeeiro Coffea racemosa extract as an alternative for the control of coffee leaf miner

open access: yesCiência e Agrotecnologia, 2011
Objetivou-se, com o presente trabalho, verificar o efeito do extrato metanólico de Coffea racemosa Lour., espécie silvestre de cafeeiro portadora de resistência a uma das principais pragas da cultura cafeeira, o bicho-mineiro.
Dejane Santos Alves   +3 more
doaj   +1 more source

Sequence organisation and conservation at homeologous regions ln the recent allotetraploid coffee (Coffea arabica L.) [PDF]

open access: yes, 2009
Coffee is one of the world's largest traded commodities produced in more than 60 countries. Coffee species belong to the Rubiaceae family and commercial coffee production relies mainly on two closely related species: Coffea arabica and C.
Cenci, Alberto   +4 more
core  

Somatic embryogenesis in coffee: the evolution of biotechnology and the integration of omics technologies offer great opportunities [PDF]

open access: yes, 2017
One of the most important crops cultivated around the world is coffee. There are two main cultivated species, Coffea arabica and C. canephora. Both species are difficult to improve through conventional breeding, taking at least 20 years to produce a new ...
Campos, N.A.   +2 more
core   +2 more sources

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