Abstracts of papers presented at the 13th congress of the Israeli phytopathological society

Abstract:

The possible existence of races of Fusarium oxysporum f. sp. dianthi in commercial carnation greenhouses was evaluated. Isolates were collected from different locations and cultivaxs during three successive years. In all, 24, 20 and 22 isolates were collected in the first, second and third year, respectively. Spore suspensions were prepared from each isolate. Each year isolates collected in the same year and, if collected in the previous year (s), were tested, and thus inoculation was done with 24, 44 and 66 isolates in the first, second and third year, respectively. Rooted stem cuttings of four cultivars were inoculated with the spore suspensions and planted in tuff (crushed volcanic stones), an artificial substrate. Wilt reaction was recorded 60--80 days after inoculation. Cultivars' Fantasia','Raggio di Sole','Elsy'and'Pallas' were susceptible to all races, viz., race 2, race 1 and race 4, respectively. Sixty-six isolates were …

Año de publicación:

1992

Keywords:

Fuente:

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