Biblioteca do Café

URI permanente desta comunidadehttps://thoth.dti.ufv.br/handle/123456789/1

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2009 - 20102

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Autor: search.filters.author.Grossi, Leandro DelAssunto: search.filters.subject.Pragas, doenças e plantas daninhas

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Agora exibindo 1 - 2 de 2
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    Coffee berry borer resistance in coffee genotypes
    (Instituto de Tecnologia do Paraná - Tecpar, 2010-03) Sera, Gustavo Hiroshi; Sera, Tumoru; Ito, Dhalton Shiguer; Ribeiro Filho, Claudionor; Villacorta, Amador; Kanayama, Fabio Seidi; Alegre, Clayton Ribeiro; Grossi, Leandro Del
    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 less damaged genotypes in the field were evaluated under controlled condition with obligated and free choice experiments established in a randomized complete design with three replications. The genotypes were evaluated fifteen days after infestation with one borer per fruit in Petri dishes. The data were analyzed by the Scott-Knott means test at 1 % and by the χ 2 test. Statistical analysis indicated that Coffea kapakata, Psilanthus bengalensis, C. eugenioides and genotypes with C. eugenioides genes were resistant. These genotypes presented low frequency of bored grains. C. eugenioides and C. kapakata could present resistance at epicarp level but not in the grain. P. bengalensis could present resistance also in the grains.
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    Comportamento de cultivares de café do Iapar em Santa Mariana - PR e reação a leprose dos frutos
    (Embrapa Café, 2009) Simão, Gervásio; Ribeiro, Clayton; Kanayama, Fabio Seidi; Shigueoka, Luciana Harumi; Grossi, Leandro Del; Dhalton, S.; Colombo, Larissa Abgariani; Fernandez, Leonardo Augusto; Rocha, Vanesca Priscila Camargo; Machado, Pedro; Sera, Gustavo Hiroshi
    O ensaio foi instalado em outubro de 2007 em delineamento blocos ao acaso com duas repetições e oito plantas/parcela em espaçamento 3,0m x 0,75m no Colégio Agrícola Estadual Fernando Costa (Santa Mariana-PR), situado a altitude de 550m, temperatura média anual de 21-22oC. Foram avaliadas para as características ramificação(r), vigor vegetativo(vv), vigor nutricional(vn), e produção (p).