Abstract
Major soilborne diseases in North Carolina and surrounding states include fusarium wilt (FW) (causal agent Fusarium oxysporum f. sp. lycopersici; all three races), verticillium wilt (VW) (Verticillium dahliae; two races), southern stem blight (SSB) (Sclerotium rolfsii), root-knot nematodes (RKN) (primarily Meloidogyne incognita) and bacterial wilt (BW) (Ralstonia solanacearum race 1), distributed across the subtropical to temperate ecosystems in the state. FW, VW, SSB, and RKN can be well managed using standard fumigants. Alternative management practices are needed in production systems where fumigants are not used or effective, and/or where heirloom tomato cultivars are grown. We are involved in a USA multi-state program to determine the viability of grafting in open-field production systems. Previously published work showed the utility of grafting to manage FW, SSB, RKN, and BW. In complementary work to manage BW, a replicated on-farm field trial demonstrates that fumigants such as Paladin (79% dimethyl disulfide + 21% chloropicrin) and PicClor60 (60% chloropicrin + 40% 1,3-dichloropropene) allow up to 80% plant death, similar to incidence in non-fumigated plots, whereas grafting to resistant rootstock (Seminis 'Cheong Gang') confers 100% control in non-fumigated plots. Another on-farm randomized complete block design experiment demonstrated that three commercially available rootstocks conferred 100% plant stand, whereas non-grafted plants had 80% plant death using a round tomato scion ('Red Mountain') or 15% plant death using a roma tomato ('Picus'). Grafted plants show economic viability in North Carolina, and additional work is needed to optimize this tool in diverse production systems.
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Claims 6
Claim · model-written summary
Fumigants allowed up to 80% plant death in tomato, similar to incidence in non-fumigated plots.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- fumigantse2
- Interactor
- Ralstonia solanacearum race 1
Ralstonia solanacearume1pathogen - Outcome
- plant deathe2
- Direction
- similare2
- Value
- 80%e2
- Comparator
- non-fumigated plotse2
- Setting
- on-farme4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato”
e1“bacterial wilt (BW) (Ralstonia solanacearum race 1)”
e2“fumigants such as Paladin (79% dimethyl disulfide + 21% chloropicrin) and PicClor60 (60% chloropicrin + 40% 1,3-dichloropropene) allow up to 80% plant death, similar to incidence in non-fumigated plots”
e4“a replicated on-farm field trial demonstrates”
Claim · model-written summary
Grafting to resistant rootstock conferred 100% control in tomato in non-fumigated plots.
- Taxon
- tomatoSolanum lycopersicumt0
- Material
- Cheong Gange3
- Treatment
- grafting to resistant rootstocke3
- Interactor
- Ralstonia solanacearum race 1Ralstonia solanacearume1pathogen
- Outcome
- controle3
- Direction
- conferse3
- Value
- 100%e3
- Comparator
- non-fumigated plotse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato”
e1“bacterial wilt (BW) (Ralstonia solanacearum race 1)”
e3“grafting to resistant rootstock (Seminis 'Cheong Gang') confers 100% control in non-fumigated plots”
Claim · model-written summary
Three commercially available rootstocks conferred 100% plant stand in tomato on farm.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- three commercially available rootstockse5
- Outcome
- plant stande5
- Direction
- conferrede5
- Value
- 100%e5
- Comparator
- non-grafted plantse5
- Setting
- on-farme4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato”
e4“a replicated on-farm field trial demonstrates”
e5“three commercially available rootstocks conferred 100% plant stand, whereas non-grafted plants had 80% plant death”
Claim · model-written summary
Non-grafted round tomato scion Red Mountain had 80% plant death.
- Taxon
- tomatoSolanum lycopersicumt0
- Material
- Red Mountaine6
- Outcome
- plant deathe6
- Value
- 80%e6
- Qualifier
- non-graftede6
- Setting
- on-farme4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato”
e4“a replicated on-farm field trial demonstrates”
e6“non-grafted plants had 80% plant death using a round tomato scion ('Red Mountain')”
Claim · model-written summary
Non-grafted roma tomato Picus had 15% plant death.
- Taxon
- tomatoSolanum lycopersicumt0
- Material
- Picuse7
- Outcome
- plant deathe7
- Value
- 15%e7
- Qualifier
- roma tomatoe7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato”
e7“15% plant death using a roma tomato ('Picus')”
Claim · model-written summary
Grafted tomato plants show economic viability in North Carolina.
- Taxon
- tomatoSolanum lycopersicumt0
- Outcome
- economic viabilitye1
- Setting
- North Carolinae1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato”
e1“Grafted plants show economic viability in North Carolina”
The same questions in other papers
grafting · growth · Solanum lycopersicum (tomato)Positive and negative results
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- negative
- negative
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See all 83 papers →grafting · Ralstonia solanacearum · Solanum lycopersicum (tomato)Results agree
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- positive
- positive
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See all 10 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.