The role of stem inoculum in the transmission ofFusarium sulphureum to potato tubers |
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| Authors: | J W Choiseul L Allen S F Carnegie |
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| Institution: | (1) Scottish Agricultural Science Agency, 82 Craigs Road, East Craigs, EH12 8NJ Edinburgh, Scotland, UK;(2) Present address: Department of Agriculture, Food and Rural Development, Potato Centre, Tops, Raphoe, Lifford, Co. Donegal, Ireland |
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| Abstract: | Summary Over 2 years, seed tubers or stems were inoculated withFusarium sulphureum Schlecht. (F. sambucinum Fuckel f. 6 Wollenw.) and the incidence of dry rot on daughter tubers assessed by standardised wound tests. The amount of
stem and soil inoculum was also measured in one year.
Inoculating stem bases resulted in greater concentrations of spores on the stem bases, greater soil populations at harvest
and more dry rot on tubers than inoculating the seed tuber. Overall, the incidence of dry rot and the amount of stem and soil
inoculum was similar for the three methods of haulm destruction: cutting and removing the stems, applying sulphuric acid or
applying diquat dibromide to the growing plants. |
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| Keywords: | Fusarium sambucinum dry rot haulm destruction Solanum tuberosum L soil populations |
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