Hostname: page-component-78c5997874-ndw9j Total loading time: 0 Render date: 2024-11-04T18:38:45.374Z Has data issue: false hasContentIssue false
  • English
  • Français

Screening potato clones for resistance to common scab (Streptomyces scabies) in the field

Published online by Cambridge University Press:  27 March 2009

F. A. Langton
F. A. Langton
Affiliation:
Plant Breeding Institute, Cambridge, CB2 2LQ*
Get access Rights & Permissions [Opens in a new window]

Summary

Potato varieties were grown in the field in soil uniformly infected with Streptomyces scabies. In 1969 tubers were severely and evenly infected but in 1971 infection was slight and not uniform. Agreement of varietal ranking with agricultural experience was good in 1969 but poor in 1971.

In 1971, plots protected from rainfall after planting were dry enough at the start of tubering for severe infection; covering the plots for a further 6 weeks followed by irrigation to field capacity resulted in good yields of evenly and severely scabbed tubers. Irrigation during this period suppressed scabbing. The results were easily interpreted in relation to fluctuations in soil-water content measured by a neutron moisture-meter.

The efficiency of using only one site and the need to reduce variability in scab screening tests are discussed.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 79 , Issue 1 , August 1972 , pp. 75 - 81
Copyright
Copyright © Cambridge University Press 1972

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Booth, R. H. (1970). Testing varietal reaction of potatoes to common scab (Streptomyces scabies) under controlled conditions. J. natn. Inst. agric. Bot. 12, 119–23.Google Scholar
Dowley, L. J. (1969). Varietal susceptibility of potatoes to common scab (Streptomyces scabies) in Ireland. Ir. J. agric. Res. 8, 343–7.Google Scholar
Hodge, C. A. H. & Seale, R. S. (1966). The soils of the district around Cambridge. Memoir of the Soil Survey of Great Britain, Harpenden: Rothamsted Experimental Station.Google Scholar
Lapwood, D. H. & Hering, T. F. (1970). Soil moisture and the infection of young potato tubers by Streptomyces scabies (common scab). Potato Res. 13, 296–304.CrossRefGoogle Scholar
Lapwood, D. H., Wellings, L. W. & Rosser, W. R. (1970). The control of common scab of potatoes by irrigation. Ann. appl. Biol. 66, 397–405.CrossRefGoogle Scholar
Large, E. C. & Honey, J. K. (1955). Survey of common scab of potatoes in Great Britain, 1952 and 1953. PL Path. 4, 1–8.CrossRefGoogle Scholar
Long, I. F. & French, B. K. (1967). Measurement of soil moisture in the field by neutron moderation. J. Soil Sci. 18, 149–66.CrossRefGoogle Scholar
Lowings, P. H. & Ridgman, W. J. (1959). A spotsampling method for the estimation of common scab on potato tubers. Pl. Path. 8, 125–6.CrossRefGoogle Scholar
McKee, R. K. (1958). Assessment of the resistance of potato varieties to common scab. Eur. Potato J. 1, 65–80.CrossRefGoogle Scholar
McKee, R. K. (1963). Scab resistance of potato varieties. Pl. Path. 12, 106–9.CrossRefGoogle Scholar
Salter, P. J. (1967). Methods of determining the moisture characteristics of soils. Expl Agric. 3, 163–73.CrossRefGoogle Scholar
Sanford, G. B. (1923). The relation of soil moisture to the development of common scab of potatoes. Phytopathology 13, 231–6.Google Scholar
Stevenson, F. J., Schaal, L. A., Clark, C. F. & Akeley, R. V. (1942). Potato scab gardens in the United States. Phytopathology 32, 965–71.Google Scholar