Variability in leaf rust susceptibility among peach cultivars

Revista Ceres

Idemir Citadin²  Sérgio Miguel Mazaro¹  Moeses Andrigo Danner¹  Maria Do Carmo Bassols Raseira¹  Gustavo Malagi¹ 

[1] ,Universidade Tecnológica Federal do ParanáPato Branco PR ,Brasil

关键词: Prunus persica L. Batsch;    disease resistance;    dissimilarity measures;    Prunus persica (L.) Batsch;    resistência a doenças;    medidas de dissimilaridade;   

DOI  :  10.1590/S0034-737X2010000200008

来源: SciELO

【 摘 要 】

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.

【 授权许可】

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