Abstract
We investigated the role of far-red LED light during cultivation on postharvest cold tolerance in tomato fruit (Solanum lycopersicum cv Moneymaker). Red and blue top LED light, providing 150 μmol m−2 s-1 photo-synthetically active radiation (PAR) at plant height for 16 h daily, was combined with 0, 30 or 50 μmol m−2 s-1 (non-PAR) far-red LED light. Tomatoes were harvested at the mature green or red stage and subjected to cold storage for 0, 5, 10, and 15 d at 4 °C, followed by 20 d shelf-life at 20 °C. Mature green harvested tomatoes, cultivated with additional far-red light, showed reduced weight loss, less pitting, faster red colour development during shelf-life (when prior long cold stored), and less softening (when prior short or non-cold stored). FR lighting during cultivation likely protects the membrane integrity of MG tomatoes and thus allows uninterrupted lycopene synthesis. Red harvested tomatoes cultivated with additional far-red light were firmer at harvest, showed reduced weight loss and less decay during shelf-life. Less red colouration was observed for red harvested fruits at the start of shelf-life when fruits were prior cold stored, indicative of lycopene breakdown during cold storage. The improved cold tolerance of red harvested fruits grown under additional far-red light is likely due to higher firmness at the start of the shelf-life period with lycopene acting as antioxidant during cold storage. In conclusion, additional far-red light during cultivation improved postharvest cold tolerance for tomatoes harvested at both the green and red maturity stage, and might therefore be suitable to prolong the storage potential of tomato at sub-optimal temperatures.
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Claims 12
Claim · model-written summary
Mature green tomatoes grown with additional far-red light showed reduced weight loss.
- Taxon
- Solanum lycopersicum
Solanum lycopersicume0 - Organ / stage
- Mature greene1
- Treatment
- additional far-red lighte1
- Outcome
- weight losse1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato fruit (Solanum lycopersicum cv Moneymaker)”
e1“Mature green harvested tomatoes, cultivated with additional far-red light, showed reduced weight loss, less pitting, faster red colour development during shelf-life (when prior long cold stored), and less softening (when prior short or non-cold stored)”
Claim · model-written summary
Mature green tomatoes grown with additional far-red light showed less pitting.
- Taxon
- Solanum lycopersicumSolanum lycopersicume0
- Organ / stage
- Mature greene1
- Treatment
- additional far-red lighte1
- Outcome
- pittinge1
- Direction
- lesse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato fruit (Solanum lycopersicum cv Moneymaker)”
e1“Mature green harvested tomatoes, cultivated with additional far-red light, showed reduced weight loss, less pitting, faster red colour development during shelf-life (when prior long cold stored), and less softening (when prior short or non-cold stored)”
Claim · model-written summary
Mature green tomatoes grown with additional far-red light showed faster red colour development during shelf-life after prior long cold storage.
- Taxon
- Solanum lycopersicumSolanum lycopersicume0
- Organ / stage
- Mature greene1
- Treatment
- additional far-red lighte1
- Outcome
- red colour developmente1
- Direction
- fastere1
- Qualifier
- during shelf-lifee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato fruit (Solanum lycopersicum cv Moneymaker)”
e1“Mature green harvested tomatoes, cultivated with additional far-red light, showed reduced weight loss, less pitting, faster red colour development during shelf-life (when prior long cold stored), and less softening (when prior short or non-cold stored)”
Claim · model-written summary
Mature green tomatoes grown with additional far-red light showed less softening.
- Taxon
- Solanum lycopersicumSolanum lycopersicume0
- Organ / stage
- Mature greene1
- Treatment
- additional far-red lighte1
- Outcome
- softeninge1
- Direction
- lesse1
- Qualifier
- when prior short or non-cold storede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato fruit (Solanum lycopersicum cv Moneymaker)”
e1“Mature green harvested tomatoes, cultivated with additional far-red light, showed reduced weight loss, less pitting, faster red colour development during shelf-life (when prior long cold stored), and less softening (when prior short or non-cold stored)”
Claim · model-written summary
Red harvested tomatoes grown with additional far-red light were firmer at harvest.
- Taxon
- Solanum lycopersicumSolanum lycopersicume0
- Organ / stage
- Red harvestede2
- Treatment
- additional far-red lighte2
- Outcome
- firmer at harveste2
- Direction
- firmere2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato fruit (Solanum lycopersicum cv Moneymaker)”
e2“Red harvested tomatoes cultivated with additional far-red light were firmer at harvest, showed reduced weight loss and less decay during shelf-life”
Claim · model-written summary
Red harvested tomatoes grown with additional far-red light showed reduced weight loss during shelf-life.
- Taxon
- Solanum lycopersicumSolanum lycopersicume0
- Organ / stage
- Red harvestede2
- Treatment
- additional far-red lighte2
- Outcome
- weight losse2
- Direction
- reducede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato fruit (Solanum lycopersicum cv Moneymaker)”
e2“Red harvested tomatoes cultivated with additional far-red light were firmer at harvest, showed reduced weight loss and less decay during shelf-life”
Claim · model-written summary
Red harvested tomatoes grown with additional far-red light showed less decay during shelf-life.
- Taxon
- Solanum lycopersicumSolanum lycopersicume0
- Organ / stage
- Red harvestede2
- Treatment
- additional far-red lighte2
- Outcome
- decaye2
- Direction
- lesse2
- Qualifier
- during shelf-lifee2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato fruit (Solanum lycopersicum cv Moneymaker)”
e2“Red harvested tomatoes cultivated with additional far-red light were firmer at harvest, showed reduced weight loss and less decay during shelf-life”
Claim · model-written summary
Red harvested fruits prior cold stored showed less red colouration at the start of shelf-life.
- Taxon
- Solanum lycopersicumSolanum lycopersicume0
- Organ / stage
- red harvested fruitse3
- Outcome
- red colouratione3
- Direction
- Lesse3
- Qualifier
- at the start of shelf-life when fruits were prior cold storede3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato fruit (Solanum lycopersicum cv Moneymaker)”
e3“Less red colouration was observed for red harvested fruits at the start of shelf-life when fruits were prior cold stored, indicative of lycopene breakdown during cold storage”
Claim · model-written summary
The less red colouration of red harvested fruits indicates lycopene breakdown during cold storage.
- Taxon
- Solanum lycopersicumSolanum lycopersicume0
- Organ / stage
- red harvested fruitse3
- Compound
- lycopenee3
- Outcome
- lycopene breakdown during cold storagee3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato fruit (Solanum lycopersicum cv Moneymaker)”
e3“Less red colouration was observed for red harvested fruits at the start of shelf-life when fruits were prior cold stored, indicative of lycopene breakdown during cold storage”
Claim · model-written summary
Improved cold tolerance of red harvested fruits grown under far-red light is likely due to higher firmness at the start of shelf-life, with lycopene acting as antioxidant.
- Taxon
- Solanum lycopersicumSolanum lycopersicume0
- Organ / stage
- red harvested fruitse4
- Treatment
- additional far-red lighte4
- Compound
- lycopenee4
- Outcome
- cold tolerancee4
- Qualifier
- higher firmness at the start of the shelf-life periode4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato fruit (Solanum lycopersicum cv Moneymaker)”
e4“The improved cold tolerance of red harvested fruits grown under additional far-red light is likely due to higher firmness at the start of the shelf-life period with lycopene acting as antioxidant during cold storage”
Claim · model-written summary
Far-red light during cultivation likely protects membrane integrity of mature green tomatoes and allows uninterrupted lycopene synthesis.
- Taxon
- Solanum lycopersicumSolanum lycopersicume0
- Organ / stage
- MG tomatoese5
- Treatment
- FR lighting during cultivatione5
- Compound
- lycopenee5
- Outcome
- membrane integritye5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato fruit (Solanum lycopersicum cv Moneymaker)”
e5“FR lighting during cultivation likely protects the membrane integrity of MG tomatoes and thus allows uninterrupted lycopene synthesis”
Claim · model-written summary
Additional far-red light during cultivation improved postharvest cold tolerance of tomatoes harvested at green and at red maturity.
- Taxon
- Solanum lycopersicumSolanum lycopersicume0
- Treatment
- additional far-red light during cultivatione6
- Outcome
- postharvest cold tolerancee6
- Direction
- improvede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato fruit (Solanum lycopersicum cv Moneymaker)”
e6“additional far-red light during cultivation improved postharvest cold tolerance for tomatoes harvested at both the green and red maturity stage”
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