Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/992548
Unidade da Embrapa/Coleção:: Embrapa Uva e Vinho - Artigo em periódico indexado (ALICE)
Data do documento: 14-Ago-2014
Tipo do Material: Artigo em periódico indexado (ALICE)
Autoria: ALVES, S. A. M.
BERESFORD, R. M.
Informaçães Adicionais: SILVIO ANDRE MEIRELLES ALVES, CNPUV; R.M. Beresford.
Título: Evaluation of three models for predicting Venturia inaequalis ascospore release in Southern Brazil.
Edição: 2013
Fonte/Imprenta: New Zealand Plant Protection, v. 66, p. 303-307, 2013.
Páginas: 5 p.
Idioma: en
Palavras-chave: Ascosporo.
Conteúdo: Ascospores of Venturia inaequalis constitute the principal source of primary inoculum for epidemics of apple black spot (scab). Mathematical models that describe ascospore release have been developed in USA, New Zealand and Italy. These models are based upon degree-day accumulation. In this work, the seasonal pattern of released ascospores of V. inaequalis in Vacaria, Brazil, was evaluated. During four apple growth seasons (2009 to 2012) the natural release of ascospores from ive orchards was recorded. The cumulative percentage of ascospore release was predicted using three different degreeday models. The released ascospore data showed the best it to the model developed in Italy, with a start date of 22 August rather than the phenological stage of apple bud break. It is concluded that in regions with warm winter temperatures, models that use bud break to initiate ascospore maturation will tend to underestimate availability of ascospores at the beginning of the apple growth season.
Thesagro: Maçã
Epidemiologia
Malus Domestica
Venturia Inaequalis.
Ano de Publicação: 2013
Aparece nas coleções:Artigo em periódico indexado (CNPUV)

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