Abstract
Economic losses due to cold weather events are a major constraint to the expansion of premium but cold-sensitive winegrape cultivars in colder regions, such as Ohio (USDA) Plant Hardiness Zones 6b–5b (−17.8 to −26.1 °C) (ARS-USDA 2012). The purpose of this study was to determine whether a foliar application of abscisic acid (ABA) could increase the freezing tolerance (FT) of field-grown ‘Pinot gris’ grapevines ( Vitis vinifera ), and whether the effectiveness of ABA treatments can be influenced by the phenological timing of the application. Mature ‘Pinot gris’ grapevines were treated with a foliar application of ABA at a concentration of 0 mg L −1 (control), or 400 mg L −1 at vine phenological stages corresponding to véraison, post-véraison, and postharvest. ABA application did not affect yield components, fruit composition, or vegetative growth, but caused early leaf senescence, leaf abscission, and advanced dormancy that led to increased FT of ‘Pinot gris’ during the dormant season. The phenological timing of application influenced ABA effectiveness, with spray applications made at véraison and post-véraison being the most effective. It was concluded that a foliar application of ABA increased bud FT during the dormant season, and thus, ABA is a potential cultural practice tool for mitigating economic losses from cold injury in production regions with damaging cold events.
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Claims 5
Claim · model-written summary
Foliar ABA did not affect yield components, fruit composition or vegetative growth of Pinot gris grapevines.
- Taxon
- Vitis vinifera
Vitis viniferae0 - Treatment
- foliar application of ABAe1
- Outcome
- yield components, fruit composition, or vegetative growthe2
- Direction
- did not affecte2
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“field-grown ‘Pinot gris’ grapevines ( Vitis vinifera )”
e1“Mature ‘Pinot gris’ grapevines were treated with a foliar application of ABA at a concentration of 0 mg L −1 (control)”
e2“ABA application did not affect yield components, fruit composition, or vegetative growth”
Claim · model-written summary
Foliar ABA caused early leaf senescence, leaf abscission and advanced dormancy in Pinot gris grapevines.
- Taxon
- Vitis viniferaVitis viniferae0
- Treatment
- foliar application of ABAe1
- Outcome
- early leaf senescence, leaf abscission, and advanced dormancye3
- Direction
- increasee3
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“field-grown ‘Pinot gris’ grapevines ( Vitis vinifera )”
e1“Mature ‘Pinot gris’ grapevines were treated with a foliar application of ABA at a concentration of 0 mg L −1 (control)”
e3“caused early leaf senescence, leaf abscission, and advanced dormancy that led to increased FT of ‘Pinot gris’ during the dormant season”
Claim · model-written summary
Foliar ABA increased bud freezing tolerance of Pinot gris grapevines during the dormant season.
- Taxon
- Vitis viniferaVitis viniferae0
- Treatment
- foliar application of ABAe1
- Outcome
- FTe3
- Direction
- increasede3
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“field-grown ‘Pinot gris’ grapevines ( Vitis vinifera )”
e1“Mature ‘Pinot gris’ grapevines were treated with a foliar application of ABA at a concentration of 0 mg L −1 (control)”
e3“caused early leaf senescence, leaf abscission, and advanced dormancy that led to increased FT of ‘Pinot gris’ during the dormant season”
Claim · model-written summary
Spray applications at véraison and post-véraison were the most effective timing of ABA for freezing tolerance.
- Taxon
- Vitis viniferaVitis viniferae0
- Treatment
- spray applications made at véraison and post-véraisone4
- Outcome
- ABA effectivenesse4
- Direction
- most effectivee4
- Comparator
- postharveste5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“field-grown ‘Pinot gris’ grapevines ( Vitis vinifera )”
e4“The phenological timing of application influenced ABA effectiveness, with spray applications made at véraison and post-véraison being the most effective”
e5“at vine phenological stages corresponding to véraison, post-véraison, and postharvest”
Claim · model-written summary
ABA is a potential cultural practice tool for mitigating economic losses from cold injury in grapevine production.
- Taxon
- Vitis viniferaVitis viniferae0
- Outcome
- potential cultural practice tool for mitigating economic losses from cold injurye6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“field-grown ‘Pinot gris’ grapevines ( Vitis vinifera )”
e6“ABA is a potential cultural practice tool for mitigating economic losses from cold injury”
The same questions in other papers
(+)-abscisic acid · tolerance: abiotic · Vitis vinifera (wine grape)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
(+)-abscisic acid · quality: general · Vitis vinifera (wine grape)Results agree
3 papers in the same direction as this paper
- no effect
- no effect
- no effect
application · quality: general · Vitis vinifera (wine grape)Positive and negative results
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- positive
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See all 9 papers →application · molecular: metabolites · Vitis vinifera (wine grape)Positive and negative results
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- no effect
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See all 18 papers →application · tolerance: abiotic · Vitis vinifera (wine grape)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
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.