Data/hora: 16/06/2024 04:11:25

Provedor de dados: | 102
País: | Brazil
Título: | Detection and transmission of Drechslera avenae from oat seed
Autores: | Carmona,Marcelo A.; Zweegman,Juan; Reis,Erlei M.
Data: | 2004-06-01
Ano: | 2004
Palavras-chave: | Pyrenophora avenae; Avena sativa; Seed-borne pathogen; Transmission.
Resumo: | Detection, symptoms and symptomless transmission of Drechslera avenae (teleomorph Pyrenophora avenae) from seed were investigated. The present study reported that the D. avenae is frequently found in oat (Avena sativa) seed in Argentina. The prevalence of the seed lot infected was 54%. The incidence of seeds infected by D. avenae in the various seed lots from different regions ranged from 0 to 52% (overall mean of 7%). Besides conidia on conidiophore and immature pseudothecia, D. avenae produced small, spherical to pear-shape picnidia containing tiny conidia, on the seed surface. The pathogen was efficiently transmitted at a rate of 55% from seed to coleoptile tips in symptomless seedlings and at 12.5% to plumules. The importance of the infected seed and its epidemiological role are discussed.
Tipo: | Info:eu-repo/semantics/other
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-41582004000300015
Editor: | Sociedade Brasileira de Fitopatologia
Relação: | 10.1590/S0100-41582004000300015
Formato: | text/html
Fonte: | Fitopatologia Brasileira  v.29 n.3 2004
Fonte: | info:eu-repo/semantics/openAccess