Media and nutrient variables were investigated to develop methods of reducing the incidence and severity of fusarium crown rot incited by Fusarium oxysporum Schlecht. f. sp. radicis-lycopersici Jarvis & Shoemaker (FORL), a disease problem of current importance with tomato Lycopersicon esculentum Mill. Root-dip inoculated seedlings were transplanted into trays of a 1 Canadian peat: 1 vermiculite medium that had been prepared with factorial combinations of CaCO, (0.75 or 3.0 kg·m), Ca(NO) or (NH) SO (each at 225 mg N/liter), and NaCl at 0 or 2000 mg Na/liter as the experimental treatments. Crown rot was more severe with the lower CaCO rate, with (NH) SO, and supplemental NaCI. Data on fresh weight of seedlings expressed as percentage values relative to the noninoculated controls supported observations on disease severity.
lFlorida Agricultural Experiment Station Journal Series Paper No. 950. 403 0066-4286/78/090 1-0403$01.00 Annu. Rev. Phytopathol. 1978.16:403-430. Downloaded from www.annualreviews.org Access provided by McMaster University on 02/08/15. For personal use only. Quick links to online content Further ANNUAL REVIEWS Annu. Rev. Phytopathol. 1978.16:403-430. Downloaded from www.annualreviews.org Access provided by McMaster University on 02/08/15. For personal use only.
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