The effect of temperature on the infection of onions by Sclerotium cepivorum |
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| Authors: | A R Entwistle H L Munasinghe |
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| Institution: | National Vegetable Research Station, Wellesbourne, Warwick |
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| Abstract: | Studies on Sclerotium cepivorum infection of salad onions in artificially infested soil showed that under field conditions infection was greatest in late spring and summer and declined to a low level in the late autumn and winter months. Change of infection levels was found to be correlated with the effect of soil temperature in the field on the germination of sclerotia. This was substantiated in laboratory studies which demonstrated that sclerotium germination, mycelial growth and seedling infection were all markedly influenced by temperature. |
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