Abstract
Abstract BACKGROUND: Partial rootzone drying (PRD) is a novel deficit irrigation technique consisting in the alternated wetting of only one side of the rootzone, which induces partial stomatal closure and increased water use efficiency. The effect of PRD and rootstock vigor on ‘Pink Lady’ apple fruit quality and aroma profile was studied using solid‐phase micro‐extraction in headspace and gas chromatography/mass spectrometry. RESULTS: PRD irrigation generally did not affect quality attributes, whereas it influenced the aroma of the apple fruit. In particular, PRD improved the aroma of the fruit flesh, while it decreased the volatile fraction in the peel, where most of the compounds are concentrated. Taking into account the relative contribution of the flesh and peel (w/w) to the apple fruit, the volatile content of the entire fruit was increased by PRD irrigation in less vigorous trees on M.9 rootstock, but reduced in more vigorous trees on MM.106 rootstock. CONCLUSIONS: Differences between the two rootstocks were probably due to different ability to extract soil water by the two types of trees. A combination of the less vigorous rootstock and PRD irrigation may induce an improvement in the aroma composition of the apple fruit. Copyright © 2008 Society of Chemical Industry
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Claims 6
Claim · model-written summary
Partial rootzone drying did not affect apple fruit quality attributes.
- Taxon
- apple
Malus domesticae1 - Treatment
- PRD irrigatione1
- Outcome
- quality attributese1
- Direction
- did not affecte1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“PRD irrigation generally did not affect quality attributes, whereas it influenced the aroma of the apple fruit”
Claim · model-written summary
Partial rootzone drying improved the aroma of the apple fruit flesh.
- Taxon
- appleMalus domesticae1
- Organ / stage
- fruit fleshe2
- Treatment
- PRDe2
- Outcome
- aroma of the fruit fleshe2
- Direction
- improvede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“PRD irrigation generally did not affect quality attributes, whereas it influenced the aroma of the apple fruit”
e2“PRD improved the aroma of the fruit flesh, while it decreased the volatile fraction in the peel, where most of the compounds are concentrated”
Claim · model-written summary
Partial rootzone drying decreased the volatile fraction in the apple peel.
- Taxon
- appleMalus domesticae1
- Organ / stage
- peele2
- Treatment
- PRDe2
- Outcome
- volatile fraction in the peele2
- Direction
- decreasede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“PRD irrigation generally did not affect quality attributes, whereas it influenced the aroma of the apple fruit”
e2“PRD improved the aroma of the fruit flesh, while it decreased the volatile fraction in the peel, where most of the compounds are concentrated”
Claim · model-written summary
Partial rootzone drying increased the whole-fruit volatile content of apple on less vigorous M.9 trees.
- Taxon
- appleMalus domesticae1
- Material
- M.9 rootstocke3
- Treatment
- PRD irrigatione3
- Outcome
- volatile content of the entire fruite3
- Direction
- increasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“PRD irrigation generally did not affect quality attributes, whereas it influenced the aroma of the apple fruit”
e3“the volatile content of the entire fruit was increased by PRD irrigation in less vigorous trees on M.9 rootstock”
Claim · model-written summary
Partial rootzone drying reduced the whole-fruit volatile content of apple on more vigorous MM.106 trees.
- Taxon
- appleMalus domesticae1
- Material
- MM.106 rootstocke4
- Treatment
- PRD irrigatione4
- Outcome
- volatile content of the entire fruite4
- Direction
- reducede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“PRD irrigation generally did not affect quality attributes, whereas it influenced the aroma of the apple fruit”
e4“the volatile content of the entire fruit was increased by PRD irrigation in less vigorous trees on M.9 rootstock, but reduced in more vigorous trees on MM.106 rootstock”
Claim · model-written summary
The authors recommend combining a less vigorous rootstock with PRD irrigation to improve apple aroma composition.
- Taxon
- appleMalus domesticae1
- Treatment
- combination of the less vigorous rootstock and PRD irrigatione5
- Outcome
- aroma composition of the apple fruite5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“PRD irrigation generally did not affect quality attributes, whereas it influenced the aroma of the apple fruit”
e5“A combination of the less vigorous rootstock and PRD irrigation may induce an improvement in the aroma composition of the apple fruit”
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