Survival of sclerotia of Sclerotium cepivorum berk. In muck soil as influenced by drying and the location of sclerotia in soil |
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| Authors: | Mary E Leggett JE Rahe RS Utkhede |
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| Institution: | Pestology Centre, Department of Biological Sciences, Simon Fraser University. Burnaby, British Columbia, Canada V5A 1S6 |
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| Abstract: | The proportion of viable sclerotia of Sclerotium cepivorum placed in field plots in Burnaby, British Columbia, decreased with time (P = 0.05). Sclerotia that had been air-dried for 48–72 hr had a lower percentage survival than those that had not been dried. Sclerotia placed on the soil surface decayed more rapidly than those buried at 15 cm (P = 0.05). Loss of viability was due to decay of sclerotia rather than to a reduction in the ability of the sclerotia to germinate which did not decline with time (P = 0.05). After 16 months in the field 23.6; 2.1; 11.7 and 8.9% of the sclerotia remained viable in the not-dried buried, not-dried surface, dried buried and dried surface treatments respectively. |
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