Changes in the occurrence of mycoflora on caraway seeds after fungicide application
2007
Odstrcilova, L.,AGRITEC, Sumperk (Czech Republic)
This work was undertaken to identify and determine the incidence of fungi which contaminate caraway seeds and to evaluate the effect of fungicidal treatment. Direct microscopic evaluation confirmed that Alternaria alternata and Cladosporium cladosporioides were the most common fungi occurring on caraway seeds. Cladosporium herbarum, Fusarium avenaceum, F. culmorum, F. equiseti, Fusarium sp., Epicoccum nigrum, Trichothecium roseum and Aureobasidium sp. were not so frequent. In field trials during 2005 and 2006, fungicide application at flowering of the crop affected mainly the pathogenic fungi Ascochyta carvi and Septoria carvi, but not the saprophytic fungi A. alternata or Cladosporium sp. In comparison with the control, in 2005 the yield increased only with prothioconazole and dimoxystrobin + boscalid. The fungicides had only a very small effect on the thousand seed weight, germination rate and essential oil content.
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