Abstract
Grafting high yielding tomato cultivars ( Solanum lycopersicum L.) onto vigorous rootstocks can increase marketable yields, but questions remain regarding optimal cultural and growing conditions such as pinching and plant spacing. This study addressed some of the dynamics between grafted plants and cultural practices. Two scions, ‘Tasti-Lee’ (TL) and ‘Mountain Fresh Plus’ (MFP) were grafted onto each of three rootstocks, ‘Beaufort’, ‘Arnold’, and ‘Shield’. Plants were pinched (removal of main shoot to induce both axillary shoots to grow) or non-pinched, and spaced at 56 or 61 cm. All 32 grafted treatments were compared to the grower standard: non-grafted TL and MFP spaced at 46 cm, which were non-pinched. Fruit quality traits including soluble solids content, pH, lycopene concentration, and titratable acidity were recorded for fruit harvested from tomatoes grafted onto ‘Arnold’, ‘Beaufort’, ‘Shield’ and non-grafted TL. The overall effect of grafting TL and MFP onto vigorous rootstocks ‘Arnold’, ‘Beaufort’, and ‘Fortamino’ increased marketable yields per hectare by 24-35% compared to non-grafted grower standards. The rootstock ‘Shield’ did not significantly increase yields with either scion. TL had a more positive response to grafting than MFP. ‘Arnold’, ‘Beaufort’, and ‘Fortamino’ significantly increased TL fruit size, but the fruit size results were not as significantly impacted by graft treatments for MFP. Plants spaced at 56 compared to 61 cm generated similar yields. Pinched plants significantly increased yields over non-pinched plants by 15% in 2018 but did not impact yield in 2017. No consistent difference was observed between pinched and non-pinched plants with regard to fruit size, only plants grafted with ‘Shield’ benefited significantly from being pinched. Soluble solids content, pH, total lycopene concentration, and titratable acidity differed slightly between grafted and non-grafted plants but was unlikely to positively or negatively affect overall perception of fruit quality in tomatoes. A partial budget analysis revealed that grafting with ‘Arnold’ or ‘Beaufort’ consistently increased profits in this low-disease field.
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Claims 12
Claim · model-written summary
Vigorous rootstocks increased marketable yields by 24-35% against grower standards.
- Taxon
- tomatoes
Solanum lycopersicumt0 - Treatment
- grafting TL and MFP onto vigorous rootstocks ‘Arnold’, ‘Beaufort’, and ‘Fortamino’e0
- Outcome
- marketable yields per hectaree0
- Direction
- increasede0
- Value
- 24-35%e0
- Comparator
- non-grafted grower standardse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The overall effect of grafting TL and MFP onto vigorous rootstocks ‘Arnold’, ‘Beaufort’, and ‘Fortamino’ increased marketable yields per hectare by 24-35% compared to non-grafted grower standards”
t0“tomatoes”
Claim · model-written summary
Shield did not significantly increase yield with either scion.
- Taxon
- tomatoesSolanum lycopersicumt0
- Treatment
- ‘Shield’e0
- Outcome
- yieldse0
- Direction
- did not significantly increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The rootstock ‘Shield’ did not significantly increase yields with either scion”
t0“tomatoes”
Claim · model-written summary
TL responded more positively to grafting than MFP.
- Taxon
- tomatoesSolanum lycopersicumt0
- Material
- TLe0
- Outcome
- response to graftinge0
- Direction
- more positivee0
- Comparator
- MFPe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“TL had a more positive response to grafting than MFP”
t0“tomatoes”
Claim · model-written summary
Arnold, Beaufort and Fortamino increased TL fruit size.
- Taxon
- tomatoesSolanum lycopersicumt0
- Material
- TLe0
- Treatment
- ‘Arnold’, ‘Beaufort’, and ‘Fortamino’e0
- Outcome
- fruit sizee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“‘Arnold’, ‘Beaufort’, and ‘Fortamino’ significantly increased TL fruit size”
t0“tomatoes”
Claim · model-written summary
Graft treatments had less significant impact on MFP fruit size.
- Taxon
- tomatoesSolanum lycopersicumt0
- Material
- MFPe0
- Treatment
- graft treatmentse0
- Outcome
- fruit size resultse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the fruit size results were not as significantly impacted by graft treatments for MFP”
t0“tomatoes”
Claim · model-written summary
Spacing at 56 versus 61 cm produced similar yields.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plants spaced at 56 compared to 61 cm generated similar yields”
t0“tomatoes”
Claim · model-written summary
Pinching increased yield by 15% in 2018.
- Taxon
- tomatoesSolanum lycopersicumt0
- Treatment
- Pinched plantse0
- Outcome
- yieldse0
- Direction
- increasede0
- Value
- 15%e0
- Qualifier
- in 2018e0
- Comparator
- non-pinched plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pinched plants significantly increased yields over non-pinched plants by 15% in 2018”
t0“tomatoes”
Claim · model-written summary
Pinching did not affect yield in 2017.
- Taxon
- tomatoesSolanum lycopersicumt0
- Treatment
- Pinchede0
- Outcome
- yielde0
- Direction
- did not impacte0
- Qualifier
- in 2017e0
- Comparator
- non-pinchede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pinched plants significantly increased yields over non-pinched plants by 15% in 2018 but did not impact yield in 2017”
t0“tomatoes”
Claim · model-written summary
Pinching showed no consistent difference in fruit size.
- Taxon
- tomatoesSolanum lycopersicumt0
- Treatment
- pinchede0
- Outcome
- fruit sizee0
- Direction
- No consistent differencee0
- Comparator
- non-pinched plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No consistent difference was observed between pinched and non-pinched plants with regard to fruit size”
t0“tomatoes”
Claim · model-written summary
Shield grafted plants gained fruit size from pinching.
- Taxon
- tomatoesSolanum lycopersicumt0
- Material
- ‘Shield’e0
- Treatment
- being pinchede0
- Outcome
- benefited significantlye0
- Direction
- benefited significantlye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“only plants grafted with ‘Shield’ benefited significantly from being pinched”
t0“tomatoes”
Claim · model-written summary
Fruit soluble solids, pH, lycopene and acidity differed slightly between grafted and ungrafted plants.
- Taxon
- tomatoesSolanum lycopersicumt0
- Treatment
- graftede0
- Outcome
- Soluble solids content, pH, total lycopene concentration, and titratable aciditye0
- Comparator
- non-grafted plantse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soluble solids content, pH, total lycopene concentration, and titratable acidity differed slightly between grafted and non-grafted plants”
t0“tomatoes”
Claim · model-written summary
Arnold or Beaufort grafting consistently increased profits in the low disease field.
- Taxon
- tomatoesSolanum lycopersicumt0
- Treatment
- grafting with ‘Arnold’ or ‘Beaufort’e0
- Outcome
- profitse0
- Direction
- increasede0
- Setting
- low-disease fielde0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grafting with ‘Arnold’ or ‘Beaufort’ consistently increased profits in this low-disease field”
t0“tomatoes”
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grafting · quality: postharvest · Solanum lycopersicum (tomato)Results differ
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- no effect
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- no effect
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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.