Abstract
Common bean (Phaseolus vulgaris) is one of the most important economic crop which is attacked by serious diseases such as Fusarium root rot. In this study, the efficacy of Trichoderma viride and T. koningii were evaluated for the suppression of Fusarium oxysporum causing root rot of beans in vitro and disease control under greenhouse condition. Three food carriers - broken dehulled rice grain, sorghum seeds, and vermiculite were also evaluated for suitability as growth and delivery media for Trichoderma isolates as determined by the sporulation ability and root rot control respectively. In vitro studies resulted in effective suppression of F. oxysporum by the two Trichoderma isolates. Saprophytic growth on rice and sorghum was good at two weeks but poor on vermiculite. T. viride in half broken dehulled rice produced excellent bean root rot control as measured by disease severity at 7th week and was significantly (P≤0.05) better than standard seed dresser Murtano (20% Thiram and 20% Lindane); T . koningii and T . viride in sorghum, and T. koningii in rice had moderate disease control whilst the two Trichoderma isolates in vermiculite had poor disease control. There was some positive correlation between saprophytic growth of Trichoderma isolates in different carriers in the laboratory and their suppression of Fusarium root rot in the greenhouse. The results of this study indicates that potential exist for management of Fusarium root rot in beans by antagonistic Trichoderma isolates in their respective carriers and may form part of IPM for bean root rot.
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Claims 8
Claim · model-written summary
Two Trichoderma isolates effectively suppressed Fusarium oxysporum in vitro.
- Taxon
- beanst0
- Treatment
- Trichoderma isolatese1
- Interactor
- F. oxysporum
_(Fusarium_oxysporum_f.sp._batatas)_1234227-PPT-Clemson_University.jpg?width=60)
Fusarium oxysporume1pathogen - Second interactor
- Trichoderma isolatese1biocontrol_agent
- Outcome
- suppression of F. oxysporume1
- Setting
- In vitroe1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_(Fusarium_oxysporum_f.sp._batatas)_1234227-PPT-Clemson_University.jpg?width=500)
Verbatim
t0“Fusarium root rot in beans”
e1“In vitro studies resulted in effective suppression of F. oxysporum by the two Trichoderma isolates”
Claim · model-written summary
Saprophytic growth of Trichoderma was good on rice and sorghum at two weeks but poor on vermiculite.
Verbatim
t0“Fusarium root rot in beans”
e2“Saprophytic growth on rice and sorghum was good at two weeks but poor on vermiculite”
Claim · model-written summary
Trichoderma koningii and T. viride in sorghum gave moderate bean root rot control.
- Taxon
- beanst0
- Treatment
- in sorghume3
- Interactor
- T . koningiiTrichoderma koningiie3biocontrol_agent
- Second interactor
- T . viride
Trichoderma viridee3biocontrol_agent - Outcome
- disease controle3
- Qualifier
- moderatee3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Fusarium root rot in beans”
e3“T . koningii and T . viride in sorghum, and T. koningii in rice had moderate disease control”
Claim · model-written summary
Trichoderma koningii in rice gave moderate bean root rot control.
Verbatim
t0“Fusarium root rot in beans”
e3“T . koningii and T . viride in sorghum, and T. koningii in rice had moderate disease control”
Claim · model-written summary
Trichoderma viride in half broken dehulled rice gave excellent bean root rot control, significantly better than the standard seed dresser Murtano.
- Taxon
- beanst0
- Treatment
- T. viride in half broken dehulled ricee4
- Interactor
- T. virideTrichoderma viridee4biocontrol_agent
- Outcome
- bean root rot controle4
- Direction
- bettere4
- Qualifier
- disease severity at 7th weeke4
- Comparator
- standard seed dresser Murtanoe4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Fusarium root rot in beans”
e4“T. viride in half broken dehulled rice produced excellent bean root rot control as measured by disease severity at 7th week and was significantly (P≤0.05) better than standard seed dresser Murtano (20% Thiram and 20% Lindane)”
Claim · model-written summary
The two Trichoderma isolates in vermiculite gave poor disease control.
Verbatim
t0“Fusarium root rot in beans”
e6“the two Trichoderma isolates in vermiculite had poor disease control”
Claim · model-written summary
Saprophytic growth of Trichoderma isolates in carriers was positively correlated with suppression of Fusarium root rot in the greenhouse.
Verbatim
t0“Fusarium root rot in beans”
e7“There was some positive correlation between saprophytic growth of Trichoderma isolates in different carriers in the laboratory and their suppression of Fusarium root rot in the greenhouse”
Claim · model-written summary
Antagonistic Trichoderma isolates in their carriers have potential for managing Fusarium root rot in beans.
Verbatim
t0“Fusarium root rot in beans”
e7“potential exist for management of Fusarium root rot in beans by antagonistic Trichoderma isolates in their respective carriers”
The same questions in other papers
Trichoderma · Fusarium oxysporum · Phaseolus vulgaris (common bean)Results agree
1 paper in the same direction as this paper
- positive
Oryza sativa · disease · Phaseolus vulgaris (common bean)Results agree
1 paper in the same direction as this paper
- positive
Trichoderma viride · disease · Phaseolus vulgaris (common bean)Results agree
5 papers in the same direction as this paper
- positive
- positive
- positive
2 papers more in this group
See all 6 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.