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Navegação Brazilian Archives of Biology and Technology por assunto "Breeding"

Navegação Brazilian Archives of Biology and Technology por assunto "Breeding"

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  • Coffee berry borer resistance in coffee genotypes
    Sera, Gustavo Hiroshi; Sera, Tumoru; Ito, Dhalton Shiguer; Ribeiro Filho, Claudionor; Villacorta, Amador; Kanayama, Fabio Seidi; Alegre, Clayton Ribeiro; Grossi, Leandro Del (Instituto de Tecnologia do Paraná - Tecpar, 2010-03)
    The aim of this study was to evaluate the coffee germplasm of the Paraná Agronomic Institute (IAPAR) for resistance to the coffee-berry-borer. Preliminary field evaluation was performed in August 2004 and the fruits of ...
  • Genetic variability for frost resistance among coffea accessions assessed in the field and in a cold chamber
    Petek, Marcos Rafael; Sera, Tumoru; Alteia, Marcos Zorzenon (Instituto de Tecnologia do Paraná - Tecpar, 2005-01)
    The genetic variability for frost resistance was evaluated in field conditions and cold chamber among Coffea accessions. Results showed that C. liberica var. dewevrei and C. racemosa, as well as hybrids obtained from these ...
  • Resistance to leaf rust in coffee carrying SH3 gene and others SH genes
    Sera, Gustavo Hiroshi; Sera, Tumoru; Ito, Dhalton Shiguer; Azevedo, José Alves de; Mata, João Siqueira da; Dói, Deisy Saori; Ribeiro Filho, Claudionor; Kanayama, Fabio Seidi (Instituto de Tecnologia do Paraná - Tecpar, 2007-09)
    The aim of this work was to evaluate the resistance to rust in coffee carrying SH3 gene and other SH genes. Twenty one CIFC’s coffee trees with several resistance genes SH were evaluated in field conditions. All the evaluated ...
  • Rust resistance in arabic coffee cultivars in northern Paraná
    Grossi, Leandro Del; Sera, Tumoru; Sera, Gustavo Hiroshi; Fonseca, Inês Cristina de Batista; Ito, Dhalton Shiguer; Shigueoka, Luciana Harumi; Andreazi, Elder (Instituto de Tecnologia do Paraná - Tecpar, 2013-01)
    The objective of the study was to evaluate the resistance to rust in coffee cultivars developed by research institutes of Brazil in Paraná state. Resistance to the local leaf rust races was assessed in high disease intensity ...
  • 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. ...
  • 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 ...

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