Abstract
Four methods described in the literature for isolating Rhizoctonia spp. from soil were employed simultaneously with two naturally infested soils. Each method had certain distinct advantages and characteristics which would suggest its use under particular circumstances. The infected host method was best for studies on the range of clones of the fungus pathogenic to certain plants. The immersion tube method recovered a limited number of clones of the fungus. The debris particle method in conjunction with the buckwheat colonization method gave the most complete information since the debris particle method reflected the status of the quiescent rhizoctonia in soil and the buckwheat colonization method, the active. Clones of the fungus obtained by the four methods varied from non-pathogenic to strongly pathogenic on live species of plants.
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Claims 4
Claim · model-written summary
The infected host method was best for studying fungal clones pathogenic to plants.
- Taxon
- plantsViridiplantaee0
- Outcome
- range of clones of the fungus pathogenic to certain plantse0
- Direction
- beste0
Not reportedComparatorValue
Verbatim
e0“The infected host method was best for studies on the range of clones of the fungus pathogenic to certain plants.”
Claim · model-written summary
The immersion tube method recovered a limited number of fungal clones.
Not reportedComparatorValue
Verbatim
e0“The immersion tube method recovered a limited number of clones of the fungus.”
Claim · model-written summary
The debris particle and buckwheat colonization methods together gave the most complete information on soil Rhizoctonia.
Not reportedComparatorValue
Verbatim
e0“The debris particle method in conjunction with the buckwheat colonization method gave the most complete information”
Claim · model-written summary
Isolated Rhizoctonia clones ranged from non-pathogenic to strongly pathogenic on plants.
- Taxon
- plantsViridiplantaee0
- Interactor
- funguse0pathogen
- Outcome
- pathogenice0
Not reportedDirection
Verbatim
e0“Clones of the fungus obtained by the four methods varied from non-pathogenic to strongly pathogenic on live species of plants.”