Abstract
Abstract Fusarium oxysporum f.sp. radicis‐lycopersici , the causal agent of Fusarium crown and root rot (FCRR), is a serious soilborne disease of tomato. Soil fumigation and host resistance may reduce the impact of this disease, but other alternative management strategies are needed because these options may not always be available or effective. The purpose of this study was to determine the potential of silicon (Si) to reduce the disease severity of FCRR. Seven‐day‐old seedlings of Bonny Best tomato, susceptible to FCRR, were transplanted in sand culture amended with Hoagland’s nutrient solution with (+Si) or without (−Si) 100 mg Si/l. At 3 weeks after transplanting, three inoculum concentrations 0, 10 6 and 10 7 conidia/plant were used to inoculate the seedlings. Disease severity and silicon concentration were evaluated at 4 weeks after inoculation. Disease progress over time was investigated using the seedlings amended with Si or without Si and inoculated with 0 or 10 6 conidia/plant. Disease severity was evaluated at 2, 3, 4 and 6 weeks after inoculation. After rating disease, evaluated plants were divided into shoots and roots for silicon concentration analysis. Si significantly reduced the severity of FCRR on the stem of tomato at 4 weeks after inoculation. Results of disease progress suggested that the decrease in the disease severity of FCRR by Si amendment was probably due to a delay in onset in initial infection of roots and the movement of the pathogen from roots to stems. Si contents of roots and shoots were significantly higher in tomato plants supplied with Si than in those without Si. Moreover, the increase in the Si content of roots was significantly correlated with the reduction of disease severity of root, crown and stem, indicating a silicon‐mediated resistance. Supplying Si to tomato seedlings can reduce the disease severity of FCRR, providing an alternative disease management strategy.
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Claims 5
Claim · model-written summary
Silicon reduced stem Fusarium crown and root rot severity at four weeks.
- Taxon
- tomato
Solanum lycopersicume0 - Organ / stage
- steme0
- Treatment
- Sie0
- Outcome
- severity of FCRR on the steme0
- Direction
- reducede0
FusariumNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Si significantly reduced the severity of FCRR on the stem of tomato at 4 weeks after inoculation.”
t0“Fusarium Crown and Root Rot of Tomato”
Claim · model-written summary
Silicon likely delayed initial root infection and pathogen movement to stems.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- Si amendmente0
- Outcome
- delay in onset in initial infection of roots and the movement of the pathogen from roots to stemse0
- Qualifier
- probablye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the decrease in the disease severity of FCRR by Si amendment was probably due to a delay in onset in initial infection of roots and the movement of the pathogen from roots to stems”
t0“Fusarium Crown and Root Rot of Tomato”
Claim · model-written summary
Silicon content of roots was higher with silicon supply.
- Taxon
- tomatoSolanum lycopersicume0
- Organ / stage
- rootse0
- Treatment
- supplied with Sie0
- Outcome
- Si contents of rootse0
- Direction
- highere0
- Comparator
- those without Sie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Si contents of roots and shoots were significantly higher in tomato plants supplied with Si than in those without Si.”
Claim · model-written summary
Silicon content of shoots was higher with silicon supply.
- Taxon
- tomatoSolanum lycopersicume0
- Organ / stage
- shootse0
- Treatment
- supplied with Sie0
- Outcome
- Si contents of roots and shootse0
- Direction
- highere0
- Comparator
- those without Sie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Si contents of roots and shoots were significantly higher in tomato plants supplied with Si than in those without Si.”
Claim · model-written summary
Higher root silicon content correlated with lower root, crown and stem disease severity.
- Taxon
- TomatoSolanum lycopersicumt0
- Organ / stage
- rootse0
- Compound
- Sie0
- Outcome
- disease severity of root, crown and steme0
- Direction
- reductione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the increase in the Si content of roots was significantly correlated with the reduction of disease severity of root, crown and stem”
t0“Fusarium Crown and Root Rot of Tomato”
The same questions in other papers
silicon atom · nutrient: content · Solanum lycopersicum (tomato)Positive and negative results
24 papers in the same direction as this paper · 1 in the opposite direction
- positive
- positive
- no effect
22 papers more in this group
See all 26 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.