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Selection for durable resistance to leaf rust using test-crosses on IAPAR-59 and Tupi IAC 1669-33 cultivars of Coffea arabica

Sera, Gustavo Hiroshi; Sera, Tumoru; Ito, Dhalton Shiguer; Azevedo, José Alves de; Mata, João Siqueira da; Doi, Deisy Saori; Ribeiro Filho, Claudionor (Instituto de Tecnologia do Paraná - Tecpar, 2007-07)

The aim of this study was to identify plants of the IAPAR-59 and Tupi IAC 1669-33 coffee cultivars with less defeated resistance genes by the rust races present at IAPAR (Londrina, Paraná State, Brazil) using test-crosses. ...
Stability of phenolic compounds and antioxidant capacity of regular and decaffeinated coffees

Vicente, Silvio José Valadão; Queiroz, Yara Severino; Gotlieb, Sabina Léa Davidson; Torres, Elizabeth Aparecida Ferraz da Silva (Instituto de Tecnologia do Paraná - Tecpar, 2014-01)

This study compared the regular and decaffeinated coffees in relation to antioxidant capacity, levels of some antioxidant molecules and stability of these parameters over a six-month period under different storage conditions. ...
Tolerance of arabica coffee cultivars for aluminum in nutritive solution

Macedo, Célia Maria Peixoto de; Lopes, José Carlos; Amaral, José Augusto Teixeira do; Fonseca, Aymbiré Francisco Almeida da; Amaral, José Francisco Teixeira do (Instituto de Tecnologia do Paraná - Tecpar, 2011-09)

This work aimed to evaluate the Coffea arabica cultivars for aluminum toxicity tolerance, in modified Hoagland solution. A completely randomized design with five repetitions in a factorial 4 x 4 (cultivar x combinations ...
Use of Coffee Capsules as Support Material in Upflow Anaerobic Fixed Bed Reactors

Souza, Gabriela Rezende de; Oliveira, Luiz Fernando Coutinho de; Bello, Italoema Pinheiro; Siniscalchi, Luciene Alves Batista; Fia, Ronaldo; Gandia, Rômulo Marçal (Instituto de Tecnologia do Paraná - Tecpar, 2019)

The aim of this work is to evaluate the performance of upflow anaerobic fixed bed reactors filled with espresso coffee capsules to treat sanitary sewage. Three reactors (R1, R2 and R3) were constructed in blue PVC pipes ...
Varietal identification of coffee seeds by RAPD technique

Crochemore, Maria Lúcia; Nunes, Liliane Moreira; Andrade, Giselly Aparecida; Molinari, Hugo Bruno Correa; Vasconcellos, Maria Elizabeth (Instituto de Tecnologia do Paraná - Tecpar, 2004-03)

This study aimed the identification of cultivars and/or lines of Coffea arabica of commercial interest, using PCR-RAPD markers. The DNA of ground seeds lots of 12 cultivars and/or lines were evaluated with five primers ...