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Relationship of Common Scab Incidence of Potatoes Grown in Tasmanian Ferrosol Soils with pH, Exchangeable Cations and other Chemical Properties of those Soils
Citation
Lacey, MJ and Wilson, CR, Relationship of Common Scab Incidence of Potatoes Grown in Tasmanian Ferrosol Soils with pH, Exchangeable Cations and other Chemical Properties of those Soils, Journal of Phytopathology, 149, (11-12) pp. 679-683. ISSN 0931-1785 (2001) [Refereed Article]
DOI: doi:10.1046/j.1439-0434.2001.00693.x
Abstract
Scab conduciveness of 35 Tasmanian ferrosol soils, used for potato cropping, was compared in a glasshouse trial. Linear regressions showed no association between scab incidence and any of 12 individual soil chemical properties. However, using contingency tables, threshold levels were found for pH and exchangeable cations below which scab disease was less likely. The observed pH threshold in the range 5.0-5.2 was in accordance with similar findings from elsewhere and indicates the robustness of this threshold over a range of soil types and pathogen species. Scab was not observed on potatoes grown in soil with combined exchangeable Ca, Mg and K at 12 cmolc/kg or less. A strong correlation between soil pH and these exchangeable cations, particularly calcium, was found.
Item Details
Item Type: | Refereed Article |
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Research Division: | Agricultural, Veterinary and Food Sciences |
Research Group: | Horticultural production |
Research Field: | Horticultural crop protection (incl. pests, diseases and weeds) |
Objective Division: | Plant Production and Plant Primary Products |
Objective Group: | Horticultural crops |
Objective Field: | Field grown vegetable crops |
UTAS Author: | Lacey, MJ (Dr Michael Lacey) |
UTAS Author: | Wilson, CR (Professor Calum Wilson) |
ID Code: | 22101 |
Year Published: | 2001 |
Web of Science® Times Cited: | 43 |
Deposited By: | Agricultural Science |
Deposited On: | 2001-08-01 |
Last Modified: | 2002-05-14 |
Downloads: | 0 |
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