Paper · 2023 · HortScience

Variable Yield Responses among Grafted and Nongrafted Late blight–resistant Tomato (Solanum lycopersicum L.) Hybrids in North Carolina

Ella R. Reeves; Amanda Strayer-Scherer; Dilip R. Panthee; et al.

7
claims
13
verbatim quotes
1
citations
2
research areas
✓
Open access · cc-by-nc-nd

Abstract

Host resistance is an environmentally and economically sustainable disease management strategy that may be especially beneficial to small-scale and organic growers for whom other management tools such as synthetic pesticides are too costly or not permitted. In western North Carolina, the demand for vine-ripened tomatoes ( Solanum lycopersicum L.) from local and organic farms has led to the development of cultivars bred for resistance to geographically relevant diseases, including late blight of tomato, which causes rapid defoliation and lesions on fruit. Grafting tomato plants has the potential to increase plant vigor and yield; however, this effect is known to be dependent on multiple factors, including scion and geographic location. In this study, we evaluated the yield response of one determinate (‘Mountain Gem’) and four indeterminate (‘Mountain Heritage’, ‘Mountain Girl’, ‘Mountain Rouge’, and ‘NC10291’) late blight–resistant tomato cultivars, grafted on tomato rootstock ‘Maxifort’ or nongrafted, on a commercial farm and at two research facilities in western North Carolina. Yield of marketable fruit from grafted plants was greater than that from nongrafted plants at one location ( P = 0.008); however, yield response of each cultivar, grafted or not grafted, differed by location. Yield was consistently greater from ‘Mountain Gem’ plants than other cultivars, and grafted ‘Mountain Gem’ plants had greater yields later in the season at two locations than nongrafted plants. Because of the late planting date intended to expose cultivars to the late blight pathogen, the full yield potential of the indeterminate cultivars was not realized at all locations. Disease severity caused by Verticillium wilt ( Verticillium dahliae Kleb., Verticillium albo-atrum Reinke & Berthold) was lowest for cultivar Mountain Heritage at two of three locations. Results from this study emphasize the importance of conducting evaluations of grafted tomato plants at multiple locations, including on farm, to optimize the benefits associated with their use.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc-nd. Read at the source ↗

The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 7

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Grafted tomato plants had greater marketable yield than nongrafted plants at one location.

Treatment
grafted plantse0
Outcome
Yield of marketable fruite0
Direction
greatere0
Qualifier
at one locatione0
Comparator
nongrafted plantse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Yield of marketable fruit from grafted plants was greater than that from nongrafted plants at one location ( P = 0.008)”

✓ located verbatim in the source · abstract, characters 1096–1215 · show in text ↑
t0

“Tomato”

✓ located verbatim in the source · title, characters 76–82 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Yield responses of grafted and nongrafted tomato cultivars differed by location.

Outcome
yield responsee0
Setting
locatione0

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“yield response of each cultivar, grafted or not grafted, differed by location”

✓ located verbatim in the source · abstract, characters 1226–1303 · show in text ↑
t0

“Tomato”

✓ located verbatim in the source · title, characters 76–82 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Mountain Gem had consistently greater yield than other cultivars.

Material
‘Mountain Gem’e0
Outcome
Yielde0
Direction
greatere0
Comparator
other cultivarse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Yield was consistently greater from ‘Mountain Gem’ plants than other cultivars”

✓ located verbatim in the source · abstract, characters 1305–1383 · show in text ↑
t0

“Tomato”

✓ located verbatim in the source · title, characters 76–82 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Grafted Mountain Gem plants yielded more late in the season at two locations than nongrafted plants.

Material
‘Mountain Gem’e0
Treatment
graftede0
Outcome
yieldse0
Direction
greatere0
Qualifier
later in the season at two locationse0
Comparator
nongrafted plantse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“grafted ‘Mountain Gem’ plants had greater yields later in the season at two locations than nongrafted plants”

✓ located verbatim in the source · abstract, characters 1389–1497 · show in text ↑
t0

“Tomato”

✓ located verbatim in the source · title, characters 76–82 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Late planting limited full yield potential of indeterminate cultivars at all locations.

Material
indeterminate cultivarse0
Treatment
late planting datee0
Outcome
full yield potentiale0
Direction
not realizede0
Qualifier
at all locationse0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Because of the late planting date intended to expose cultivars to the late blight pathogen, the full yield potential of the indeterminate cultivars was not realized at all locations”

✓ located verbatim in the source · abstract, characters 1499–1680 · show in text ↑
t0

“Tomato”

✓ located verbatim in the source · title, characters 76–82 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Mountain Heritage had lowest Verticillium wilt severity at two of three locations.

Material
Mountain Heritagee0
Interactor
Verticillium dahliaeVerticillium dahliaee0pathogen
Second interactor
Verticillium albo-atrumVerticillium albo-atrume0pathogen
Outcome
Disease severity caused by Verticillium wilte0
Direction
loweste0
Qualifier
at two of three locationse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗
Verticillium dahliae
Verticillium dahliae · InteractorHoward F. Schwartz · CC BY 3.0 us · Wikimedia Commons ↗
Verticillium albo-atrum
Verticillium albo-atrum · Second interactorUSDA Forest Service - Northern and Intermountain Region · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Disease severity caused by Verticillium wilt ( Verticillium dahliae Kleb., Verticillium albo-atrum Reinke & Berthold) was lowest for cultivar Mountain Heritage at two of three locations”

✓ located verbatim in the source · abstract, characters 1682–1867 · show in text ↑
t0

“Tomato”

✓ located verbatim in the source · title, characters 76–82 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

The authors emphasize multi-location, on-farm evaluation of grafted tomato.

Outcome
conducting evaluations of grafted tomato plants at multiple locations, including on farme0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Results from this study emphasize the importance of conducting evaluations of grafted tomato plants at multiple locations, including on farm”

✓ located verbatim in the source · abstract, characters 1869–2009 · show in text ↑

grafting · quality: postharvest · Solanum lycopersicum (tomato)Results differ

53 papers: 43 positive, 10 negative or no effect

42 papers in the same direction as this paper · 10 in the opposite direction

  1. positive
  2. no effect
  3. no effect

49 papers more in this group

See all 53 papers →

sowing time · yield · Solanum lycopersicum (tomato)Positive and negative results

28 papers: 23 positive, 5 negative or no effect

4 papers in the same direction as this paper · 23 in the opposite direction

  1. positive
  2. positive
  3. positive

24 papers more in this group

See all 28 papers →

grafting · yield · Solanum lycopersicum (tomato)Positive and negative results

176 papers: 151 positive, 25 negative or no effect

150 papers in the same direction as this paper · 25 in the opposite direction

  1. positive
  2. positive
  3. positive

172 papers more in this group

See all 176 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.