Abstract
SummaryHeirloom tomatoes (Solanum lycopersicum L.) such as ‘Cuore di Bue’ are highly appreciated by consumers for their outstanding quality and flavour. Nowadays, they are often grafted onto vigorous rootstocks in order to overcome several soil-borne diseases. The present study was conducted in 2007 and 2008 in Southern Italy. Plants of ‘Cuore di Bue’, an heirloom ‘oxheart’ tomato, were grown in a greenhouse either as non-grafted plants, or grafted onto two inter-specific (S. lycopersicum S. habrochaites) rootstocks (‘Beaufort F1’ and ‘Maxifort F1’) in order to evaluate their effects on vegetative growth, marketable yield, fruit quality, and the sensory properties of ‘Cuore di Bue’ tomato fruit. Growth analysis revealed that ‘Maxifort F1’ enhanced plant growth, particularly in terms of leaf area and leaf fresh weight. Grafted plants had higher leaf area ratios (by 13%) and higher leaf dry weight fractions (by 18%) compared to non-grafted ‘Cuore di Bue’ plants. Marketable yields increased by 20 – 25% in grafted plants in both years. However, total soluble solids (TSS) contents, titratable acidity (TA), and TSS/TA ratios were not significantly affected by grafting.Vitamin C contents decreased by 14 – 20% in both years in the fruit of plants grafted onto either rootstock. The sensory profiles of fruit were not modified by grafting, although taste panelists expressed a higher preference for purchasing fruit from plants grafted onto ‘Maxifort F1’. These results confirm that, when using the appropriate rootstock/scion combination, grafting can improve plant growth and the marketable yield of heirloom tomato fruit without reducing the sensory quality of the fruit or its biochemical parameters. However, grafting can reduce vitamin C contents and, thus, nutritional quality.
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Claims 8
Claim · model-written summary
Maxifort F1 increased leaf area and fresh weight.
- Taxon
- tomato
Solanum lycopersicume1 - Treatment
- ‘Maxifort F1’e0
- Outcome
- leaf area and leaf fresh weighte0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“‘Maxifort F1’ enhanced plant growth, particularly in terms of leaf area and leaf fresh weight.”
e1“an heirloom ‘oxheart’ tomato”
Claim · model-written summary
Grafted plants had 13% higher leaf area ratio than nongrafted plants.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- Grafted plantse0
- Outcome
- leaf area ratiose0
- Direction
- highere0
- Value
- 13%e0
- Comparator
- non-grafted ‘Cuore di Bue’ plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grafted plants had higher leaf area ratios (by 13%) and higher leaf dry weight fractions (by 18%) compared to non-grafted ‘Cuore di Bue’ plants.”
e1“an heirloom ‘oxheart’ tomato”
Claim · model-written summary
Grafted plants had 18% higher leaf dry weight fraction than nongrafted plants.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- Grafted plantse0
- Outcome
- leaf dry weight fractionse0
- Direction
- highere0
- Value
- 18%e0
- Comparator
- non-grafted ‘Cuore di Bue’ plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grafted plants had higher leaf area ratios (by 13%) and higher leaf dry weight fractions (by 18%) compared to non-grafted ‘Cuore di Bue’ plants.”
e1“an heirloom ‘oxheart’ tomato”
Claim · model-written summary
Grafting increased marketable tomato yield by 20 to 25% in both years.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- grafted plantse0
- Outcome
- Marketable yieldse0
- Direction
- increasede0
- Value
- 20 – 25%e0
- Qualifier
- both yearse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Marketable yields increased by 20 – 25% in grafted plants in both years.”
e1“an heirloom ‘oxheart’ tomato”
Claim · model-written summary
Grafting did not significantly change total soluble solids, titratable acidity or their ratio.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- graftinge0
- Outcome
- total soluble solids (TSS) contents, titratable acidity (TA), and TSS/TA ratiose0
- Direction
- not significantly affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“total soluble solids (TSS) contents, titratable acidity (TA), and TSS/TA ratios were not significantly affected by grafting.”
e1“an heirloom ‘oxheart’ tomato”
Claim · model-written summary
Fruit vitamin C fell 14 to 20% on either rootstock.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- grafted onto either rootstocke0
- Outcome
- Vitamin C contentse0
- Direction
- decreasede0
- Value
- 14 – 20%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Vitamin C contents decreased by 14 – 20% in both years in the fruit of plants grafted onto either rootstock.”
e1“an heirloom ‘oxheart’ tomato”
Claim · model-written summary
Grafting did not modify tomato fruit sensory profiles.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- graftinge0
- Outcome
- sensory profiles of fruite0
- Direction
- not modifiede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The sensory profiles of fruit were not modified by grafting”
e1“an heirloom ‘oxheart’ tomato”
Claim · model-written summary
Panelists preferred fruit from Maxifort F1 grafted plants for purchase.
- Taxon
- tomatoSolanum lycopersicume1
- Material
- ‘Maxifort F1’e0
- Outcome
- preference for purchasing fruite0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“taste panelists expressed a higher preference for purchasing fruit from plants grafted onto ‘Maxifort F1’.”
e1“an heirloom ‘oxheart’ tomato”
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