Abstract
Tomato is affected by a lot of diseases including bacterial wilt caused by Ralstonia solanacearum (Rs), resulting in fruit yield loss. Chemical control of this disease is not advisable because of hazardous effects on human and environment, hence, the need to use biocontrol agents such as Bacillus thuringiensis (Bt). This study investigated the potential of Bt in the control of Rs under screenhouse condition. Six treatments with three replications in completely randomized design were carried out. Agronomic parameters were measured and data collected were analyzed using one - way analysis of variance. Means were then separated using Duncan's Multiple Range Test at p ≤ 0.05. Inoculation of Bt and Rs simultaneously significantly suppressed the incidence of bacterial wilt and promoted plant growth. Higher plant heights (72.70 - 111.00 cm), stem girth (1.63 - 1.90 cm) and number of leaves (103.33 - 125.33) were recorded for plants inoculated with Bt at 9th week after planting compared to plants inoculated with Rs alone. Highest disease incidence was recorded in plants inoculated with Rs alone (100 %), while plants inoculated with Bt had the highest disease reduction (67%). This study revealed that Bt may be used in the control of bacterial wilt of tomato.Keywords: Bacillus thuringiensis, screenhouse, Bacterial wilt, Ralstonia solanacearum, Tomato
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Claims 8
Claim · model-written summary
Simultaneous Bt and Rs inoculation suppressed bacterial wilt incidence in tomato.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- Inoculation of Bt and Rs simultaneouslye0
- Interactor
- Rse0pathogen
- Second interactor
- Bte0biocontrol_agent
- Outcome
- incidence of bacterial wilte0
- Direction
- suppressede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Inoculation of Bt and Rs simultaneously significantly suppressed the incidence of bacterial wilt and promoted plant growth.”
t0“Antagonistic effect of Bacillus thuringiensis for the control of bacterial wilt of tomato (Lycopersicon esculentum Mill)”
Claim · model-written summary
Simultaneous Bt and Rs inoculation promoted tomato growth.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Inoculation of Bt and Rs simultaneouslye0
- Interactor
- Rse0pathogen
- Second interactor
- Bte0biocontrol_agent
- Outcome
- plant growthe0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Inoculation of Bt and Rs simultaneously significantly suppressed the incidence of bacterial wilt and promoted plant growth.”
t0“Antagonistic effect of Bacillus thuringiensis for the control of bacterial wilt of tomato (Lycopersicon esculentum Mill)”
Claim · model-written summary
Bt inoculation produced taller tomato plants than Rs alone at week 9.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- inoculated with Bte0
- Interactor
- Rse0pathogen
- Second interactor
- Bte0biocontrol_agent
- Outcome
- plant heightse0
- Direction
- Highere0
- Value
- 72.70 - 111.00 cme0
- Qualifier
- 9th week after plantinge0
- Comparator
- plants inoculated with Rs alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Higher plant heights (72.70 - 111.00 cm), stem girth (1.63 - 1.90 cm) and number of leaves (103.33 - 125.33) were recorded for plants inoculated with Bt at 9th week after planting compared to plants inoculated with Rs alone.”
t0“Antagonistic effect of Bacillus thuringiensis for the control of bacterial wilt of tomato (Lycopersicon esculentum Mill)”
Claim · model-written summary
Bt inoculation produced greater tomato stem girth than Rs alone at week 9.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- inoculated with Bte0
- Interactor
- Rse0pathogen
- Second interactor
- Bte0biocontrol_agent
- Outcome
- stem girthe0
- Direction
- Highere0
- Value
- 1.63 - 1.90 cme0
- Qualifier
- 9th week after plantinge0
- Comparator
- plants inoculated with Rs alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Higher plant heights (72.70 - 111.00 cm), stem girth (1.63 - 1.90 cm) and number of leaves (103.33 - 125.33) were recorded for plants inoculated with Bt at 9th week after planting compared to plants inoculated with Rs alone.”
t0“Antagonistic effect of Bacillus thuringiensis for the control of bacterial wilt of tomato (Lycopersicon esculentum Mill)”
Claim · model-written summary
Bt inoculation produced more tomato leaves than Rs alone at week 9.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- inoculated with Bte0
- Interactor
- Rse0pathogen
- Second interactor
- Bte0biocontrol_agent
- Outcome
- number of leavese0
- Direction
- Highere0
- Value
- 103.33 - 125.33e0
- Qualifier
- 9th week after plantinge0
- Comparator
- plants inoculated with Rs alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Higher plant heights (72.70 - 111.00 cm), stem girth (1.63 - 1.90 cm) and number of leaves (103.33 - 125.33) were recorded for plants inoculated with Bt at 9th week after planting compared to plants inoculated with Rs alone.”
t0“Antagonistic effect of Bacillus thuringiensis for the control of bacterial wilt of tomato (Lycopersicon esculentum Mill)”
Claim · model-written summary
Rs alone had 100% disease incidence in tomato.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- inoculated with Rs alonee0
- Interactor
- Rse0pathogen
- Outcome
- disease incidencee0
- Direction
- Higheste0
- Value
- 100 %e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Highest disease incidence was recorded in plants inoculated with Rs alone (100 %), while plants inoculated with Bt had the highest disease reduction (67%).”
t0“Antagonistic effect of Bacillus thuringiensis for the control of bacterial wilt of tomato (Lycopersicon esculentum Mill)”
Claim · model-written summary
Bt inoculation had the highest tomato disease reduction at 67%.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- inoculated with Bte0
- Interactor
- Bte0biocontrol_agent
- Outcome
- disease reductione0
- Direction
- higheste0
- Value
- 67%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Highest disease incidence was recorded in plants inoculated with Rs alone (100 %), while plants inoculated with Bt had the highest disease reduction (67%).”
t0“Antagonistic effect of Bacillus thuringiensis for the control of bacterial wilt of tomato (Lycopersicon esculentum Mill)”
Claim · model-written summary
The authors propose Bt for control of tomato bacterial wilt.
- Taxon
- tomatoSolanum lycopersicumt0
- Interactor
- Bte0biocontrol_agent
- Outcome
- control of bacterial wilte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This study revealed that Bt may be used in the control of bacterial wilt of tomato.”
t0“Antagonistic effect of Bacillus thuringiensis for the control of bacterial wilt of tomato (Lycopersicon esculentum Mill)”
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