Abstract
Southern blight (Sclerotium rolfsii) and root-knot nematodes (Meloidogyne spp.) cause severe damage to fresh-market tomato (Solanum lycopersicum) throughout the southeastern United States. Grafting is an emerging technology in U.S. tomato production, and growers require information regarding the resistance characteristics conferred by rootstocks. In this study, southern blight (SB) and root-knot nematodes (RKN) were effectively managed using interspecific hybrid rootstocks. During 2007 and 2008, field trials were carried out at two locations that had soils naturally infested with S. rolfsii. At the end of the growing seasons, the mean SB incidence of nongrafted plants was 27 and 79% at the two sites. SB incidence among plants grafted onto rootstock cultivars Big Power (one location only), Beaufort, and Maxifort ranged from 0 to 5%, and area under the disease progress curve (AUDPC) values were lower than for nongrafted and self-grafted controls (P < 0.01). At one location, soils were naturally infested with RKN, and all three rootstocks reduced RKN AUDPC and RKN soil populations at first harvest (P < 0.01). Big Power was particularly effective at reducing RKN galling and RKN soil populations at final fruit harvest (P < 0.01). Fruit yield was higher when resistant rootstocks were utilized (P < 0.05), and in our study grafting was effective at maintaining crop productivity in soils infested with S. rolfsii and M. incognita.
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Claims 6
Claim · model-written summary
Grafted plants had lower southern blight incidence (0 to 5%) than nongrafted plants.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- grafted onto rootstock cultivars Big Powere1
- Interactor
- Sclerotium rolfsii
Agroathelia rolfsiie0pathogen - Outcome
- SB incidencee1
- Direction
- lowerinferrede1
- Value
- 0 to 5%e1
- Comparator
- nongrafted plantse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Southern blight (Sclerotium rolfsii) and root-knot nematodes (Meloidogyne spp.) cause severe damage to fresh-market tomato (Solanum lycopersicum)”
e1“SB incidence among plants grafted onto rootstock cultivars Big Power (one location only), Beaufort, and Maxifort ranged from 0 to 5%”
e2“the mean SB incidence of nongrafted plants was 27 and 79% at the two sites”
Claim · model-written summary
Grafted plants had lower southern blight AUDPC than nongrafted and self-grafted controls.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- graftede1
- Interactor
- Sclerotium rolfsiiAgroathelia rolfsiie0pathogen
- Outcome
- area under the disease progress curve (AUDPC) valuese3
- Direction
- lowere3
- Comparator
- nongrafted and self-grafted controlse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Southern blight (Sclerotium rolfsii) and root-knot nematodes (Meloidogyne spp.) cause severe damage to fresh-market tomato (Solanum lycopersicum)”
e1“SB incidence among plants grafted onto rootstock cultivars Big Power (one location only), Beaufort, and Maxifort ranged from 0 to 5%”
e3“area under the disease progress curve (AUDPC) values were lower than for nongrafted and self-grafted controls (P < 0.01)”
Claim · model-written summary
All three rootstocks reduced root-knot nematode AUDPC and soil populations at first harvest.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- all three rootstockse4
- Interactor
- Meloidogyne spp.
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=60)
Meloidogynee0pest - Outcome
- RKN AUDPC and RKN soil populations at first harveste4
- Direction
- reducede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=500)
Verbatim
e0“Southern blight (Sclerotium rolfsii) and root-knot nematodes (Meloidogyne spp.) cause severe damage to fresh-market tomato (Solanum lycopersicum)”
e4“all three rootstocks reduced RKN AUDPC and RKN soil populations at first harvest (P < 0.01)”
Claim · model-written summary
Big Power was particularly effective at reducing root-knot nematode galling and soil populations at final fruit harvest.
- Taxon
- tomatoSolanum lycopersicume0
- Material
- Big Powere5
- Treatment
- Big Powere5
- Interactor
- Meloidogyne spp.Meloidogynee0pest
- Outcome
- RKN galling and RKN soil populations at final fruit harveste5
- Direction
- reducinge5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Southern blight (Sclerotium rolfsii) and root-knot nematodes (Meloidogyne spp.) cause severe damage to fresh-market tomato (Solanum lycopersicum)”
e5“Big Power was particularly effective at reducing RKN galling and RKN soil populations at final fruit harvest (P < 0.01)”
Claim · model-written summary
Fruit yield was higher with resistant rootstocks.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- resistant rootstockse6
- Outcome
- Fruit yielde6
- Direction
- highere6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Southern blight (Sclerotium rolfsii) and root-knot nematodes (Meloidogyne spp.) cause severe damage to fresh-market tomato (Solanum lycopersicum)”
e6“Fruit yield was higher when resistant rootstocks were utilized (P < 0.05)”
Claim · model-written summary
Grafting was effective at maintaining tomato crop productivity in soils infested with S. rolfsii and M. incognita.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- graftinge7
- Interactor
- S. rolfsiiAgroathelia rolfsiie7pathogen
- Second interactor
- M. incognitaMeloidogyne incognitae7pest
- Outcome
- crop productivitye7
- Direction
- effective at maintaininge7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Southern blight (Sclerotium rolfsii) and root-knot nematodes (Meloidogyne spp.) cause severe damage to fresh-market tomato (Solanum lycopersicum)”
e7“grafting was effective at maintaining crop productivity in soils infested with S. rolfsii and M. incognita”
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See all 11 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.