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Mycocentrospora acerina in carrots; Effects of crop rotation on disease incidence
Author(s) -
HERMANSEN ARNE,
AMUNDSEN TERJE,
TAKSDAL GUDMUND,
DRAGLAND STEINAR,
SYNNEVÅG GRY,
FLØNES MONS,
SUNDHEIM LEIF
Publication year - 1997
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1997.tb05168.x
Subject(s) - biology , crop , crop rotation , agronomy , horticulture , cultivar
Summary Four experimental sites located in different climatic regions in Norway were inoculated with Mycocentrospora acerina in 1985. In 1986, crop rotation experiments including carrot, barley, grass, red clover, onion and potato, were established at these sites. Incidence of M. acerina on the foliage and the roots of carrots after storage were recorded in 1989/90 and 1994/95. The 3 yr rotation only slightly reduced the inoculum of M. acerina in the soil. Red clover and grass were the most effective crops in reducing the inoculum, potato and barley were less effective, and onion had no effect on the inoculum. Differences in M. acerina infection on carrots between 3, 6 and 8 yr of rotation with barley and grass were not statistically significant.