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Fungi on irrigated rice seeds produced in the pre-germinated system in the Alto Vale do Itajaí region, Santa Catarina state, Brazil

2020; UNIVERSIDADE FEDERAL DE SANTA MARIA; Volume: 50; Issue: 8 Linguagem: Inglês

10.1590/0103-8478cr20190903

ISSN

1678-4596

Autores

Bruno Tabarelli Scheidt, Juliano Berghetti, Flávio Chupel Martins, Ricardo Trezzi Casa, Welliton Recalcatti, Valdemir Rossarola, José de Alencar Lemos Vieira,

Tópico(s)

Agricultural and Food Sciences

Resumo

ABSTRACT: The aim of this research was to identify and quantify fungi infecting irrigated rice seeds produced in the 2015/16, 2016/17 and 2017/18 harvests in the pre-germinated system in the Alto Vale do Itajaí Region, Santa Catarina State, Brazil. A total of 479 lots of eight cultivars were analyzed. Seeds were disinfected and sown in potato-sucrose-agar culture medium with incubation for seven days at 25ºC ± 2ºC and photoperiod of 12 hours. The main fungus detected in the three crops season was Microdochium albescens with 54.9% of average incidence, followed by Alternaria padwikii (7.7%) and Bipolaris oryzae (3.3%).

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