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Cultivar response to bacterial ring rot infection in Maine

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Abstract

An account of several years of testing cultivars for response to bacterial ring rot (BRR) infection is reported. Inoculum was prepared by grinding infected tuber tissue and adding distilled water to make a slurry. Seedpieces of cultivars to be tested were dipped in the slurry, planted and covered immediately in the field. Five hill plots were arranged in a RCB design with four replications and cultivars of known reaction to BRR were included as checks. Assessment of symptom expressions was begun when symptoms were first observed in any entry and repeated weekly for the remainder of the growing season. Results of tests on named cultivars and a few advanced, numbered selections are presented for the years 1983 through 1986.

Compendio

Se presenta un informe de varios años de pruebas con cultivares para observar su respuesta a la infección bacteriana de la pudrición en anillo (Corynebacterium sepedonicum). El inóculo fue preparado triturando tejidos de tubérculos infectados y agregando agua destilada para formar una suspensión. Pedazos de tubérculos-semillas de los cultivares tivares a probarse se sumergieron en la suspensión, se sembraron y se taparon inmediatamente en el campo. Parcelas de cinco hoyos fueron dispuestas en bloques completos al azar con cuatro repeticiones, incluyendo como testigos a los cultivares de reacción conocida a la pudrición en anillo. La determinación de los síntomas se inició cuando éstos fueron observados por primera vez en cualquiera de las entradas y se repitió semanalmente en todo el resto de la temporada. Se dan los resultados de las pruebas sobre los cultivares nominados, y unas cuantas selecciones avanzadas numeradas, para los años 1983 a 1986.

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Maine Agricultural Experiment Station Publication No. 1261.

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Manzer, F.E., McKenzie, A.R. Cultivar response to bacterial ring rot infection in Maine. American Potato Journal 65, 333–339 (1988). https://doi.org/10.1007/BF02853529

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