Abstract
Tomato is one of the major new sources of income for many farmers in central C?te d?Ivoire. However Plant wilting undermines tomato cultivation in Central C?te d?Ivoire. The purpose of this paper is to help improve the production of that vegetable through both identification and non-chemically control of the causal agent of the bacterial wilt. During the phytosanitary survey, the disease prevalence and severity were determined in five tomato plantations in Yamoussoukro. The pathogen associated to bacterial was isolated and tested for pathogenicity. The sensitivity of the causal agent to the ethanolic extracts of Allium fistulosum and Hydrocotyle bonariensis was then evaluated using the well method and dissemination on SPA medium; subsequently applied on artificially infected plants. Several symptoms including leaf flaccidity, chlorosis, browning between veins, leaf drying and browning of the vascular system were observed. Prevalences ranged from 30 to 85% while severities ranged from 2.3 to 4.63. The bacteria Ralstonia solanacearum responsible for the disease showed high sensitivity to the ethanolic extract of A. fistulosum and a moderate sensitivity to H. bonariensis. On inoculated tomato plants, extracts of H. bonariensis and A. fistulosum brought down the prevalence of wilting by 31.67% and 35%, respectively. Control trials could be conducted in the field to determine the optimal doses of extracts that can substitute synthetic pesticides proven very expensive and relatively toxic for consumers.
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Claims 8
Claim · model-written summary
Tomato wilt showed leaf flaccidity, chlorosis, interveinal browning, leaf drying, and vascular browning.
- Taxon
- Tomato
Solanum lycopersicumt0 - Outcome
- leaf flaccidity, chlorosis, browning between veins, leaf drying and browning of the vascular systeme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Several symptoms including leaf flaccidity, chlorosis, browning between veins, leaf drying and browning of the vascular system were observed”
t0“Tomato”
Claim · model-written summary
Wilt prevalence in surveyed tomato plantations ranged from 30 to 85%.
- Taxon
- tomatoSolanum lycopersicume1
- Outcome
- Prevalencese0
- Value
- 30 to 85%e0
- Setting
- Yamoussoukroe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Prevalences ranged from 30 to 85%”
e1“five tomato plantations in Yamoussoukro”
Claim · model-written summary
Wilt severity in surveyed tomato plantations ranged from 2.3 to 4.63.
- Taxon
- tomatoSolanum lycopersicume1
- Outcome
- severitiese0
- Value
- 2.3 to 4.63e0
- Setting
- Yamoussoukroe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“severities ranged from 2.3 to 4.63”
e1“five tomato plantations in Yamoussoukro”
Claim · model-written summary
Ralstonia solanacearum was identified as the tomato wilt agent.
- Taxon
- TomatoSolanum lycopersicumt0
- Interactor
- Ralstonia solanacearum
Ralstonia solanacearume0pathogen - Outcome
- responsible for the diseasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The bacteria Ralstonia solanacearum responsible for the disease”
t0“Tomato”
Claim · model-written summary
Ralstonia solanacearum showed high sensitivity to A. fistulosum extract.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- ethanolic extract of A. fistulosume0
- Interactor
- Ralstonia solanacearumRalstonia solanacearume0pathogen
- Outcome
- Ralstonia solanacearum responsible for the disease showed high sensitivitye0
- Direction
- high sensitivitye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ralstonia solanacearum responsible for the disease showed high sensitivity to the ethanolic extract of A. fistulosum”
t0“Tomato”
Claim · model-written summary
Ralstonia solanacearum showed moderate sensitivity to H. bonariensis extract.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- H. bonariensise0
- Interactor
- Ralstonia solanacearumRalstonia solanacearume1pathogen
- Outcome
- moderate sensitivitye0
- Direction
- moderate sensitivitye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a moderate sensitivity to H. bonariensis”
e1“The bacteria Ralstonia solanacearum responsible for the disease”
t0“Tomato”
Claim · model-written summary
H. bonariensis extract reduced wilt prevalence on inoculated tomato plants by 31.67%.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- extracts of H. bonariensise0
- Outcome
- prevalence of wiltinge0
- Direction
- brought downe0
- Value
- 31.67%e0
Not reportedInteractorComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“On inoculated tomato plants, extracts of H. bonariensis and A. fistulosum brought down the prevalence of wilting by 31.67% and 35%, respectively”
Claim · model-written summary
A. fistulosum extract reduced wilt prevalence on inoculated tomato plants by 35%.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- A. fistulosume0
- Outcome
- prevalence of wiltinge0
- Direction
- brought downe0
- Value
- 35%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“On inoculated tomato plants, extracts of H. bonariensis and A. fistulosum brought down the prevalence of wilting by 31.67% and 35%, respectively”
The same questions in other papers
Allium fistulosum · Ralstonia solanacearum · Solanum lycopersicum (tomato)Results agree
1 paper in the same direction as this paper
- positive
Allium fistulosum · disease · Solanum lycopersicum (tomato)Results agree
1 paper in the same direction as this paper
- positive
botanical · Ralstonia solanacearum · Solanum lycopersicum (tomato)Positive and negative results
27 papers in the same direction as this paper · 3 in the opposite direction
- no effect
- negative
- no effect
27 papers more in this group
See all 31 papers →botanical · disease · Solanum lycopersicum (tomato)Positive and negative results
145 papers in the same direction as this paper · 14 in the opposite direction
- no effect
- negative
- negative
156 papers more in this group
See all 160 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.