Abstract
In three years (1994, 1995, and 1996), a total of 100 commercial potato fields in southeastern Idaho were surveyed for soil variables, severity of Verticillium wilt, soil inoculum density ofVerticillium dahliae andColletotrichum coccodes, colonization of stems, root, and tubers byV. dahliae andC. coccodes, and tuber yield, size, and quality. As a generalization, factors related to soil integrity (organic matter, organic nitrogen, and increased nutrient availability) were most closely related to wilt suppression and higher tuber yields, whereas factors related to loss of soil integrity (sodium and reduced nutrient availability) were related to increased wilt and lower tuber yields. In a multiple regression analysis, three independent variables, feeder-root infections byV. dahliae, sodium content in soil, and soil organic content, were significant predictors of tuber yield. With these three factors, this model accounted for 49%, 53%, and 62% of the field variability related to total yield in 1994, 1995, and 1996, respectively. Throughout this investigation,V. dahliae root infections had the most direct effect on tuber yield, which emphasizes the importance of quantifying root infections in epidemiological studies of Verticillium wilt. Based on these results, organic matter may be one factor that can be manipulated for suppression of Verticillium wilt without reducing soil populations of the pathogen.
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Literature Cited
Anonymous. 1971. United States Standards for Grades of Potatoes (35 F.R. 18257). Consumer and Marketing Service, Washington, DC. Baker, K.F., and R.J. Cook. 1974. Biological control of plant pathogens.In: Kelman, A., and L. Sequiera (eds), The Biology of Plant Pathogens. Freeman, San Francisco, pp. 67–70.
Barkdoll, A.W., and J.R. Davis. 1992. Distribution ofColletotrichum coccodes in Idaho and variations in pathogenicity on potato. Plant Dis 76:131–135.
Butterfield, E.J., and J.E. DeVay. 1977. Reassessment of soil assays forVerticillium dahliae. Phytopathology 67:1073–1078.
Davis, J.R., and D.O. Everson. 1986. Relation ofVerticillium dahliae in soil and potato tissue, irrigation method, and N-fertility to Verticillium wilt of potato. Phytopathology 76:730–736.
Davis, J.R., S.L. Hafez, and L.H. Sorensen. 1992. Lesion nematode suppression with the Butte potato and relationships to Verticillium wilt. Am Potato J 69:371–383.
Davis, J.R., O.C. Huisman, D.O. Everson, L.H. Sorensen, and A.T. Schneider. 1999. Control of Verticillium wilt of the Russet Burbank potato with corn and barley. Am J Potato Res 76:367.
Davis, J.R., O.C. Huisman, D.T. Westermann, S.L. Hafez, D.O. Everson, L.H. Sorensen, and A.T. Schneider. 1996. Effects of green manures on Verticillium wilt of potato. Phytopathology 86:444–453.
Davis, J.R., O.C. Huisman, D.T. Westermann, L.H. Sorensen, A.T. Schneider, and J.C. Stark. 1994. The influence of cover crops on the suppression of Verticillium wilt of potato.In: Zehnder, G.W., M.L. Powelson, R.K. Jannson, and K.V. Ramay (eds), Advances in Potato Pest Biology and Management. APS Press, St. Paul, MN. pp. 332–341.
Davis, J.R., and D.A. Johnson. 2001. Black dot.In: Stevenson, W.R., R. Loria, G.D. Franc, and D.P. Weingartner (eds), Compendium of Potato Diseases. APS Press, St. Paul, MN. (in press).
Davis, J.R., J.J. Pavek, and D.L. Corsini. 1983. A sensitive method for quantifyingVerticillium dahliae colonization in plant tissue and evaluating resistance among potato genotypes. Phytopathology 73:1009–1014.
Davis, J.R., J.C. Stark, L.H. Sorensen, and A.T. Schneider. 1994. Interactive effects of nitrogen and phosphorus and Verticillium wilt of Russet Burbank potato. Am Potato J 71:467–481.
Hodges, R.O., and A.M. Scofield. 1983. Effect of agricultural practices on the health of plants and animal produce: A review.In: Lockeretz, W. (ed), Environmentally Sound Agriculture. Praeger, New York, pp. 3–34.
Hoitink, H.A.J., and M.J. Boehm. 1999. Biocontrol within the context of soil microbial communities: A substrate-dependent phenomenon. Ann Rev Phytopathol 37:427–446.
Huisman, O.C. 1988. Colonization of field-grown cotton roots by pathogenic and saprophytic soilborne fungi. Phytopathology 78:716–722.
Lumsden, R.D., J.A. Lewis, and P.D. Millner. 1983. Effect of composted sewage sludge on several soilborne plant pathogens and diseases. Phytopathology 73:1543–1548.
McGeorge, W.T., and J.F. Breazeale. 1938. Studies on soil structure: Effect of puddled soils on plant growth. Arizona Ag Expt Sta Tech Bul 72:413–447.
Mohan, S.K., J.R. Davis, L.H. Sorensen, and A.T. Schneider. 1992. Infection of aerial parts of potato plants byColletotrichum coccodes and its effects on premature death and yield. Am Potato J 69:547–559.
Myers, R.H. 1986. Classical and Modern Regression with Applications. Duxbury Press, Boston.
Nnodu, E.C., and M.D. Harrison. 1979. The relationship betweenVerticillium albo-atrum, inoculum density, and potato yield. Am Potato J 56:11–25.
Papendick, R.I., and L.F. Elliott. 1983. Soil physical factors that affect plant health.In: Kommedahl, T. and P.H. Williams (eds), Challenging Problems in Plant Health. APS Press, St. Paul, MN. pp. 173–174.
Richards, LA (ed). 1954. Diagnosis and improvement of saline and alkali soils. Agriculture Handbook No. 60. U.S. Department of Agriculture. 159 pp.
Rowe, R.C., J.R. Davis, M.X. Powelson, and D.I. Rouse. 1987. Potato early dying: Causal agents and management strategies. Plant Dis 71:482–489.
Sorensen, L.H., A.T. Schneider, and J.R. Davis. 1991. Influence of sodiumpolygalacturonate sources and improved recovery ofVerticillium spp from soil (Abstr.). Phytopathology 81:1345.
Steel, R.G.O., and J.H. Torrie. 1960. Principles and Procedures of Statistics. McGraw-Hill, Inc., San Francisco.
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Davis, J.R., Huisman, O.C., Everson, D.O. et al. Verticillium wilt of potato: a model of key factors related to disease severity and tuber yield in Southeastern Idaho. Amer J of Potato Res 78, 291–300 (2001). https://doi.org/10.1007/BF02875694
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DOI: https://doi.org/10.1007/BF02875694