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Relation of changes in pathogen population to incidence and development of rhizome rot disease of ginger in continuous indoor cropping for immature rhizome production



Relation of changes in pathogen population to incidence and development of rhizome rot disease of ginger in continuous indoor cropping for immature rhizome production



Annals of the Phytopathological Society of Japan 47(2): 151-157



The number of seed pieces contaminated by the pathogen [Pythium zingiberum] varies each year. The pathogen was not isolated from field soil sterilized prior to planting. Disease outbreak was caused by planting infected seed pieces. The propagules of the pathogen increased in rhizosphere and non-rhizosphere soils during and after secondary infection; the propagules were mycelial fragments or sporangia-like bodies. The pathogen was detected from soil just before planting ginger, although it had decreased during the preceding cropping in the same soil.

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Accession: 000966537

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