Effect of Bacillus subtilis on Growth and Protection of Onion against White Rot |
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| Authors: | R S Utkhede J E Rahe |
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| Institution: | Department of Biological Sciences, Simon Fraser University, Burnaby, British Columbia Canada VSA 186 |
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| Abstract: | The effect of isolates of Bacillus subtilis applied as seed treatments on plant growth and white rot on three onion cultivars was studied for two seasons on muck soil of Fraser valley of British Columbia. The isolates of B. subtilis provided significant season-long protection against onion white rot on all three cultivars. The most effective isolate (BACT 2) protected the onion cultivar Autumn spice against onion white rot in both years. plant height, number of leaves per plant, and bulb weight were not affected by treating seeds with the Bacillus isolates. Bulb neck diameter of the cultivar Autumn Spice was significantly reduced by two isolates in both seasons. |
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