Abstract
The biological suppression of the saprophytic growth of Gaeumannomyces graminis var. tritici in soil in the absence of host roots appeared to be related to suppression of take-all disease of wheat seedlings. When soil collected from a plot which in 1984 and 1985 had grown wheat continuously for 7 and 8 years, respectively, was added at a level of 1% (w/w) to the same soil treated by γ-radiation, saprophytic growth of pigmented hyphae of G. graminis var. tritici on a filter membrane in a soil sandwich was suppressed relative to that occurring in irradiated soil. A soil of the same type from an adjacent area with a history of cereal–pasture alternate rotation did not significantly suppress saprophytic growth of G. graminis var. tritici. Biological suppression of disease of wheat caused by G. graminis var. tritici was tested in a pot bioassay by adding the same two soils, collected in 1985, at a level of 1% (w/w) to fumigated sand infested with oat kernels axenically colonized by the pathogen. Disease severity, measured as the percentage of the seminal root axes with discoloured stele, was reduced by 42 and 6% with the addition of continuous wheat and cereal–pasture rotation soils, respectively, to infested sand, compared with disease severity in unamended, infested sand alone.
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Claims 4
Claim · model-written summary
Continuous wheat soil suppressed pathogen saprophytic growth relative to irradiated soil.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- soil collected from a plot which in 1984 and 1985 had grown wheat continuously for 7 and 8 yearse0
- Interactor
- G. graminis var. triticiGaeumannomyces triticie0pathogen
- Outcome
- saprophytic growth of pigmented hyphae of G. graminis var. triticie0
- Direction
- suppressede0
- Comparator
- irradiated soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When soil collected from a plot which in 1984 and 1985 had grown wheat continuously for 7 and 8 years, respectively, was added at a level of 1% (w/w) to the same soil treated by γ-radiation, saprophytic growth of pigmented hyphae of G. graminis var. tritici on a filter membrane in a soil sandwich was suppressed relative to that occurring in irradiated soil.”
Claim · model-written summary
Cereal-pasture rotation soil did not significantly suppress pathogen saprophytic growth.
- Taxon
- wheatTriticum aestivume1
- Treatment
- soil of the same type from an adjacent area with a history of cereal–pasture alternate rotatione0
- Interactor
- G. graminis var. triticiGaeumannomyces triticie0pathogen
- Outcome
- saprophytic growth of G. graminis var. triticie0
- Direction
- did not significantly suppresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A soil of the same type from an adjacent area with a history of cereal–pasture alternate rotation did not significantly suppress saprophytic growth of G. graminis var. tritici.”
e1“Biological suppression of disease of wheat”
Claim · model-written summary
Continuous wheat soil reduced take-all disease severity by 42% relative to unamended infested sand.
- Taxon
- wheatTriticum aestivume1
- Treatment
- continuous wheate0
- Interactor
- G. graminis var. triticiGaeumannomyces triticie1pathogen
- Outcome
- Disease severitye0
- Direction
- reducede0
- Value
- 42e0
- Comparator
- unamended, infested sand alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Disease severity, measured as the percentage of the seminal root axes with discoloured stele, was reduced by 42 and 6% with the addition of continuous wheat and cereal–pasture rotation soils, respectively, to infested sand, compared with disease severity in unamended, infested sand alone.”
e1“disease of wheat caused by G. graminis var. tritici”
Claim · model-written summary
Cereal-pasture rotation soil reduced take-all disease severity by 6% relative to unamended infested sand.
- Taxon
- wheatTriticum aestivume1
- Treatment
- cereal–pasture rotation soilse0
- Interactor
- G. graminis var. triticiGaeumannomyces triticie1pathogen
- Outcome
- Disease severitye0
- Direction
- reducede0
- Value
- 6%e0
- Comparator
- unamended, infested sand alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Disease severity, measured as the percentage of the seminal root axes with discoloured stele, was reduced by 42 and 6% with the addition of continuous wheat and cereal–pasture rotation soils, respectively, to infested sand, compared with disease severity in unamended, infested sand alone.”
e1“disease of wheat caused by G. graminis var. tritici”
The same questions in other papers
rotation · Gaeumannomyces tritici · Triticum aestivum (wheat)Positive and negative results
3 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
1 paper more in this group
See all 5 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.