Abstract
Abstract Intercropping is a sustainable practice becoming increasingly popular in the Canadian Prairies. However, its long‐term impact on diseases in subsequent sole crops is not well understood. We examined root rot and associated fungal communities in durum wheat [ Triticum turgidum L. ssp. durum (Desf.) Husn.], following different ratios of lentil ( Lens culinaris Medik.)–yellow mustard ( Sinapis alba L.), and field pea ( Pisum sativum L.)–oat ( Avena sativa L.) intercrops, and respective monocultures, in a semiarid region of the Canadian Prairies (2018–2019). The previous crop(s) impacted disease severity in durum wheat and had a significant impact on the composition of fungal communities. Durum grown after the mustard monoculture and its high‐ratio intercrop had 15% less severe root rot than after the lentil monoculture and its high‐ratio intercrop, while durum following the oat monoculture and its intercrops had 16% more severe root rot than after mustard and its intercrops. Fusarium species were the most frequent fungal isolates, accounting for 70% of total isolations. The main Fusarium cereal pathogens were >1.7x–25.5x higher following the oat than the mustard monoculture and 2x–3x higher after the pea–oat than the lentil–mustard intercrops. In turn, isolation of the main fungi with biocontrol potential (antagonists) was 4.3x–5x higher after the mustard than oat monoculture, and 2x higher after lentil–mustard than pea–oat. The prevalence of antagonists in mustard‐containing treatments, and their negative correlation with disease levels, suggest a dual mechanism of disease suppression: a direct pathogen inhibition through the mustard's allelopathy and enhanced populations of indigenous microbial antagonists.
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Claims 11
Claim · model-written summary
Previous crop(s) impacted disease severity in durum wheat.
- Taxon
- durum wheat
Triticum turgidum subsp. durume1 - Treatment
- previous crop(s)e3
- Outcome
- disease severitye3
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“We examined root rot and associated fungal communities in durum wheat [ Triticum turgidum L. ssp. durum (Desf.) Husn.]”
e3“The previous crop(s) impacted disease severity in durum wheat and had a significant impact on the composition of fungal communities”
Claim · model-written summary
Previous crop(s) had a significant impact on the composition of fungal communities in durum wheat.
- Taxon
- durum wheatTriticum turgidum subsp. durume1
- Treatment
- previous crop(s)e3
- Outcome
- composition of fungal communitiese3
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“We examined root rot and associated fungal communities in durum wheat [ Triticum turgidum L. ssp. durum (Desf.) Husn.]”
e3“The previous crop(s) impacted disease severity in durum wheat and had a significant impact on the composition of fungal communities”
Claim · model-written summary
Durum after mustard monoculture and its high-ratio intercrop had 15% less severe root rot than after the lentil counterpart.
- Taxon
- durum wheatTriticum turgidum subsp. durume1
- Treatment
- mustard monoculture and its high‐ratio intercrope4
- Outcome
- root rote4
- Direction
- less severee4
- Value
- 15%e4
- Comparator
- lentil monoculture and its high‐ratio intercrope4
- Setting
- a semiarid region of the Canadian Prairiese2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“We examined root rot and associated fungal communities in durum wheat [ Triticum turgidum L. ssp. durum (Desf.) Husn.]”
e2“in a semiarid region of the Canadian Prairies”
e4“Durum grown after the mustard monoculture and its high‐ratio intercrop had 15% less severe root rot than after the lentil monoculture and its high‐ratio intercrop”
Claim · model-written summary
Durum after oat monoculture and its intercrops had 16% more severe root rot than after mustard and its intercrops.
- Taxon
- durum wheatTriticum turgidum subsp. durume1
- Treatment
- oat monoculture and its intercropse5
- Outcome
- root rote5
- Direction
- more severee5
- Value
- 16%e5
- Comparator
- mustard and its intercropse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“We examined root rot and associated fungal communities in durum wheat [ Triticum turgidum L. ssp. durum (Desf.) Husn.]”
e5“while durum following the oat monoculture and its intercrops had 16% more severe root rot than after mustard and its intercrops”
Claim · model-written summary
Fusarium species were the most frequent fungal isolates, accounting for 70% of total isolations in durum wheat.
- Taxon
- durum wheatTriticum turgidum subsp. durume1
- Outcome
- most frequent fungal isolatese6
- Value
- 70% of total isolationse6
FusariumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“We examined root rot and associated fungal communities in durum wheat [ Triticum turgidum L. ssp. durum (Desf.) Husn.]”
e6“Fusarium species were the most frequent fungal isolates, accounting for 70% of total isolations”
Claim · model-written summary
Main Fusarium cereal pathogens were more than 1.7 to 25.5 times higher following oat than following mustard monoculture.
- Taxon
- durum wheatTriticum turgidum subsp. durume1
- Treatment
- following the oate7
- Interactor
- Fusarium cereal pathogense7pathogen
- Outcome
- main Fusarium cereal pathogense7
- Direction
- highere7
- Value
- >1.7x–25.5xe7
- Comparator
- the mustard monoculturee7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“We examined root rot and associated fungal communities in durum wheat [ Triticum turgidum L. ssp. durum (Desf.) Husn.]”
e7“The main Fusarium cereal pathogens were >1.7x–25.5x higher following the oat than the mustard monoculture and 2x–3x higher after the pea–oat than the lentil–mustard intercrops”
Claim · model-written summary
Main Fusarium cereal pathogens were 2x to 3x higher after pea-oat than after lentil-mustard intercrops.
- Taxon
- durum wheatTriticum turgidum subsp. durume1
- Treatment
- pea–oate7
- Interactor
- Fusarium cereal pathogense7pathogen
- Outcome
- main Fusarium cereal pathogense7
- Direction
- highere7
- Value
- 2x–3xe7
- Comparator
- lentil–mustard intercropse7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“We examined root rot and associated fungal communities in durum wheat [ Triticum turgidum L. ssp. durum (Desf.) Husn.]”
e7“The main Fusarium cereal pathogens were >1.7x–25.5x higher following the oat than the mustard monoculture and 2x–3x higher after the pea–oat than the lentil–mustard intercrops”
Claim · model-written summary
Isolation of antagonists was 4.3x to 5x higher after mustard than after oat monoculture.
- Taxon
- durum wheatTriticum turgidum subsp. durume1
- Treatment
- the mustarde2
- Interactor
- antagonistse2biocontrol_agent
- Outcome
- isolation of the main fungi with biocontrol potential (antagonists)e2
- Direction
- highere2
- Value
- 4.3x–5xe2
- Comparator
- oat monoculturee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“We examined root rot and associated fungal communities in durum wheat [ Triticum turgidum L. ssp. durum (Desf.) Husn.]”
e2“isolation of the main fungi with biocontrol potential (antagonists) was 4.3x–5x higher after the mustard than oat monoculture, and 2x higher after lentil–mustard than pea–oat”
Claim · model-written summary
Isolation of antagonists was 2x higher after lentil-mustard than after pea-oat.
- Taxon
- durum wheatTriticum turgidum subsp. durume1
- Treatment
- lentil–mustarde2
- Interactor
- antagonistse2biocontrol_agent
- Outcome
- isolation of the main fungi with biocontrol potential (antagonists)e2
- Direction
- highere2
- Value
- 2xe2
- Comparator
- pea–oate2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“We examined root rot and associated fungal communities in durum wheat [ Triticum turgidum L. ssp. durum (Desf.) Husn.]”
e2“isolation of the main fungi with biocontrol potential (antagonists) was 4.3x–5x higher after the mustard than oat monoculture, and 2x higher after lentil–mustard than pea–oat”
Claim · model-written summary
Antagonist prevalence in mustard-containing treatments was negatively correlated with disease levels.
- Taxon
- durum wheatTriticum turgidum subsp. durume1
- Treatment
- mustard‐containing treatmentse3
- Interactor
- antagonistse3biocontrol_agent
- Outcome
- disease levelse3
- Direction
- negative correlatione3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“We examined root rot and associated fungal communities in durum wheat [ Triticum turgidum L. ssp. durum (Desf.) Husn.]”
e3“The prevalence of antagonists in mustard‐containing treatments, and their negative correlation with disease levels, suggest a dual mechanism of disease suppression: a direct pathogen inhibition through the mustard's allelopathy and enhanced populations of indigenous microbial antagonists”
Claim · model-written summary
A dual mechanism of disease suppression is suggested: direct pathogen inhibition through mustard allelopathy and enhanced indigenous antagonist populations.
- Taxon
- durum wheatTriticum turgidum subsp. durume1
- Outcome
- disease suppressione3
- Qualifier
- direct pathogen inhibition through the mustard's allelopathy and enhanced populations of indigenous microbial antagonistse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“We examined root rot and associated fungal communities in durum wheat [ Triticum turgidum L. ssp. durum (Desf.) Husn.]”
e3“The prevalence of antagonists in mustard‐containing treatments, and their negative correlation with disease levels, suggest a dual mechanism of disease suppression: a direct pathogen inhibition through the mustard's allelopathy and enhanced populations of indigenous microbial antagonists”
The same questions in other papers
rotation · disease · Triticum turgidum (rivet wheat)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
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.