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Effect of Soil Fumigation on Volunteer Potato (Solanum tuberosum) Tuber Viability
Published online by Cambridge University Press: 20 January 2017
Abstract
Management of volunteer potato is difficult and requires an integrated approach. Soil fumigation is one tactic known to reduce population densities of certain weeds and may be a method to improve the management of volunteer potato. The effect of 1,3-dichloropropene (1,3-D) and metham sodium on potato tuber viability was tested in sealed glass jars at various doses, incubation temperatures, and times of exposure. Tuber viability data were fitted to a logistic model, and I 90 doses (90% suppression) were calculated for each combination of temperature and time of exposure. I 90 doses for 1,3-D ranged from 41 to 151 kg/ha and from 96 to over 480 kg/ha metham sodium. Both nondormant and dormant tubers were injured by exposure to metham sodium. Soil fumigation with 1,3-D and metham sodium has the potential to greatly reduce the number of viable potato tubers.
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- Copyright © Weed Science Society of America
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