Variability in leaf rust susceptibility among peach cultivars

  • Citadin I
  • Mazaro S
  • Danner M
  • et al.
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Abstract

The aim of this work was to estimate the susceptibility of thirty-six peach cultivars to leaf rust caused by Tranzschelia discolor f. sp. persica. The incidence and severity of the disease as well as defoliation in peach trees of an experimental orchard of Parana Federal University of Technology, Campus Dois Vizinhos were evaluated on the growing seasons 2004/2005 and 2005/2006. Immunity to this disease was not observed in the studied cultivars. There was difference in leaf rust intensity depending on the growing season conditions. Cultivars 'Pilcha', 'Sinuelo', 'Chirua', 'Sulina', 'Eldorado' and 'Pampeano' showed tolerance to leaf rust, whereas cultivars 'Vila Nova', 'Fla 1372', 'Coral 2', 'Chimarrita', 'Della Nona', 'BR-1 ' and 'Guaiaca' showed high susceptibility.Este trabalho objetivou avaliar a suscetibilidade de trinta e seis cultivares de pessegueiro à ferrugem da folha. Foram realizadas avaliações de percentual de incidência e severidade da doença nas folhas e percentual de desfolha, durante os ciclos de 2004/2005, e 2005/2006, em uma coleção da Universidade Tecnológica Federal do Paraná, Campus Dois Vizinhos. Não foi observada imunidade à ferrugem da folha nos cultivares avaliados. Houve diferença na intensidade da doença em função das condições climáticas de cada ciclo. Os cultivares 'Pilcha', 'Sinuelo', 'Chirua', 'Sulina', 'Eldorado' e 'Pampeano' se mostraram tolerantes à ferrugem, enquanto que 'Vila Nova', 'Fla 1372' (Maravilha), 'Coral 2', 'Chimarrita', 'Della Nona', 'BR-1' e 'Guaiaca' foram classificadas como altamente suscetíveis.

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APA

Citadin, I., Mazaro, S. M., Danner, M. A., Raseira, M. do C. B., & Malagi, G. (2010). Variability in leaf rust susceptibility among peach cultivars. Revista Ceres, 57(2), 185–193. https://doi.org/10.1590/s0034-737x2010000200008

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