Causes of differences in growth pattern, yield and quality of potatoes (Solanum tuberosum L.) in short rotations on sandy soil as affected by crop rotation, cultivar and application of granular nematicides
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A crop rotation experiment was carried out on a light sandy soil in 1979–1986 to study the effects of the frequency of potato cropping on yield, quality and on the occurrence of soil-borne pathogens other than potato cyst nematodes.
Tuber yield decreased markedly with increasing cropping frequency, but also depended on what crops were grown in rotation with potato. Growth during the early part of the season, as well as the length of the growing period, were reduced in short rotations. The fungiVerticillium dahliae andRhizoctonia solani, and root-knot nematodes (Meloidogyne spp.) were the most important yield reducing pathogens. The effects of rotation depended on the cultivar used.
The percentage of mis-shapen tubers increased with increasing cropping frequency and after application of granular nematicides, but the incidence of common scab (Streptomyces scabies) was not affected.
Additional key wordsaldicarb Colletotrichum coccodes cropping frequency Meloidogyne hapla M. chitwoodi oxamyl Rhizoctonia solani Streptomyces scabies
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- Faulkner, L. R. & F. D. McElroy, 1964. Host range of northern root-knot nematode on irrigated crop plants and weeds in Washington.Plant Disease Reporter 48: 190–193.Google Scholar
- Hofman, T. W., 1988. Effects of granular nematicides on the infection of potatoes byRhizoctonia solani. Thesis, Wageningen Agricultural University: pp. 1–123.Google Scholar
- Leijdens, M. B. & Y. Hofmeester, 1986. Population fluctuations of some nematodes on potato and sugar beet in relation to different crop rotations.Mededelingen Faculteit Landbouwwetenschappen der Rijksuniversiteit Gent 51/3b: 1279–1286.Google Scholar
- Mojtahedi, H., G. S. Santo & J. H. Wilson, 1988. Host tests to differentiateMeloidogyne chitwoodi races 1 and 2 andM. hapla.Journal of Nematology 20: 468–473.Google Scholar
- O'Bannon, J. H., G. S. Santo & A. P. Nyczepir, 1982. Host range of the Columbia root-knot nematode.Plant Disease 66: 1045–1048.Google Scholar
- O'Bannon, J. H. & G. S. Santo, 1984. Effect of soil temperature on reproduction ofMeloidogyne chitwoodi andM. hapla alone and in combination on potato andM. chitwoodi on rotation plants.Journal of Nematology 16: 309–312.Google Scholar
- Scholte, K., 1987. The effect of crop rotation and granular nematicides on the incidence ofRhizoctonia solani in potato.Potato Research 30: 187–199.Google Scholar
- Scholte, K. & R. E. Labruyère, 1985. Netted scab: a new name for an old disease in Europe.Potato Research 28: 443–448.Google Scholar
- Scholte, K., J. W. Veenbas-Rijks & R. E. Labruyère, 1985. Potato growing in short rotations and the effect ofStreptomyces spp.,Colletotrichum coccodes, Fusarium tabacinum andVerticillium dahliae on plant growth and tuber yield.Potato Research 28: 331–348.Google Scholar