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vol.44 número3Levantamento de Phaeomoniella chlamydospora em plantas daninhas de vinhedo. Summa Phytopathologica, índice de autoresíndice de assuntospesquisa de artigos
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Summa Phytopathologica

versão impressa ISSN 0100-5405versão On-line ISSN 1980-5454

Resumo

FUZITANI, Eduardo Jun et al. Inoculation methods, aggressiveness of isolates and resistance of peach palm progenies to Phytophthora palmivora. Summa phytopathol. [online]. 2018, vol.44, n.3, pp.213-217. ISSN 0100-5405.  https://doi.org/10.1590/0100-5405/178476.

Stem base rot (SBR) caused by Phytophthora palmivora is the main disease affecting peach palm in the nursery and in the field. This study aimed to: a) determine the most appropriate method for P. palmivora inoculation in peach palm; b) assess the aggressiveness of P. palmivora isolates; c) evaluate the resistance of peach palm progenies to P. palmivora. Experiments were carried out at “Embrapa Florestas” from March 2011 to March 2012. A descriptive rating scale was developed to assess SBR severity in peach palm. The disease severity was evaluated 7, 14, 21 and 28 days after inoculation. The conclusions were: a) injection at the stem base was the most effective method for P. palmivora inoculation; b) SA-5, SA-9, SA-10, SA-11, SA-14, SA-15, SA-16, SA-30 and SA-31 were the most aggressive P. palmivora isolates; and c) peach palm progenies T2, T4, T7, T9 and T15 showed resistance to P. palmivora.

Palavras-chave : Bactris gasipaes; palm heart; phytopathology.

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