Abstract
Canes of field-grown uncovered and covered (plastic film) table grapes, cv. Matilde, were girdled at veraison. Leaves of girdled vines displayed lower rates of transpiration on a leaf area basis and lower rates of CO2 uptake; stem and leaf water potentials were decreased. Both, covering and cane girdling stimulated vegetative growth and increased leaf area per vine. However, sugar accumulation in berries and fruit quality were not affected by cane girdling and were slightly reduced by covering. Therefore, harvesting dates were not advanced. Cane girdling appeared to influence carbohydrate partitioning by stimulating shoot growth at the expense of fruit production. It is concluded that the stage of rapid sugar accumulation was not yet reached by the time girdling took place. The development of a larger transpiring leaf surface area per vine is supposed to have lowered the vine water status.
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Claims 13
Claim · model-written summary
Cane girdling at veraison lowered transpiration per leaf area in table grape vines.
- Taxon
- table grapese0
- Treatment
- girdled at veraisone0
- Outcome
- rates of transpiratione1
- Direction
- lowere1
- Qualifier
- on a leaf area basise1
Not reportedComparator
Verbatim
e0“Canes of field-grown uncovered and covered (plastic film) table grapes, cv. Matilde, were girdled at veraison”
e1“Leaves of girdled vines displayed lower rates of transpiration on a leaf area basis and lower rates of CO2 uptake”
Claim · model-written summary
Cane girdling at veraison lowered CO2 uptake rates in table grape leaves.
Not reportedComparator
Verbatim
e0“Canes of field-grown uncovered and covered (plastic film) table grapes, cv. Matilde, were girdled at veraison”
e1“Leaves of girdled vines displayed lower rates of transpiration on a leaf area basis and lower rates of CO2 uptake”
Claim · model-written summary
Cane girdling at veraison decreased stem and leaf water potentials in table grape.
- Taxon
- table grapese0
- Treatment
- girdled at veraisone0
- Outcome
- stem and leaf water potentialse2
- Direction
- decreasede2
Not reportedComparator
Verbatim
e0“Canes of field-grown uncovered and covered (plastic film) table grapes, cv. Matilde, were girdled at veraison”
e2“stem and leaf water potentials were decreased”
Claim · model-written summary
Cane girdling stimulated vegetative growth of table grape vines.
Not reportedComparator
Verbatim
e0“Canes of field-grown uncovered and covered (plastic film) table grapes, cv. Matilde, were girdled at veraison”
e3“Both, covering and cane girdling stimulated vegetative growth and increased leaf area per vine”
Claim · model-written summary
Cane girdling increased leaf area per vine.
Not reportedComparator
Verbatim
e0“Canes of field-grown uncovered and covered (plastic film) table grapes, cv. Matilde, were girdled at veraison”
e3“Both, covering and cane girdling stimulated vegetative growth and increased leaf area per vine”
Claim · model-written summary
Plastic covering stimulated vegetative growth of table grape vines compared with uncovered vines.
Verbatim
e0“Canes of field-grown uncovered and covered (plastic film) table grapes, cv. Matilde, were girdled at veraison”
e3“Both, covering and cane girdling stimulated vegetative growth and increased leaf area per vine”
Claim · model-written summary
Plastic covering increased leaf area per vine compared with uncovered vines.
Verbatim
e0“Canes of field-grown uncovered and covered (plastic film) table grapes, cv. Matilde, were girdled at veraison”
e3“Both, covering and cane girdling stimulated vegetative growth and increased leaf area per vine”
Claim · model-written summary
Cane girdling did not affect sugar accumulation in berries or fruit quality.
- Taxon
- table grapese0
- Treatment
- cane girdlinge4
- Outcome
- sugar accumulation in berries and fruit qualitye4
- Direction
- not affectede4
Not reportedComparator
Verbatim
e0“Canes of field-grown uncovered and covered (plastic film) table grapes, cv. Matilde, were girdled at veraison”
e4“sugar accumulation in berries and fruit quality were not affected by cane girdling”
Claim · model-written summary
Plastic covering slightly reduced sugar accumulation in berries and fruit quality compared with uncovered vines.
Verbatim
e0“Canes of field-grown uncovered and covered (plastic film) table grapes, cv. Matilde, were girdled at veraison”
e4“sugar accumulation in berries and fruit quality were not affected by cane girdling”
e5“were slightly reduced by covering”
Claim · model-written summary
Cane girdling did not advance harvesting dates of table grapes.
Not reportedComparator
Verbatim
e0“Canes of field-grown uncovered and covered (plastic film) table grapes, cv. Matilde, were girdled at veraison”
e4“sugar accumulation in berries and fruit quality were not affected by cane girdling”
e6“Therefore, harvesting dates were not advanced”
Claim · model-written summary
Cane girdling appears to shift carbohydrate partitioning toward shoot growth at the expense of fruit production.
Verbatim
e0“Canes of field-grown uncovered and covered (plastic film) table grapes, cv. Matilde, were girdled at veraison”
e7“Cane girdling appeared to influence carbohydrate partitioning by stimulating shoot growth at the expense of fruit production”
Claim · model-written summary
The stage of rapid sugar accumulation had not yet been reached when girdling took place.
Verbatim
e0“Canes of field-grown uncovered and covered (plastic film) table grapes, cv. Matilde, were girdled at veraison”
e7“It is concluded that the stage of rapid sugar accumulation was not yet reached by the time girdling took place”
Claim · model-written summary
A larger transpiring leaf area per vine is supposed to have lowered vine water status.
Verbatim
t0“table grape cv. Matilde”
e7“The development of a larger transpiring leaf surface area per vine is supposed to have lowered the vine water status”
The same questions in other papers
pruning · quality: grain · VitisPositive and negative results
3 papers in the same direction as this paper · 1 in the opposite direction
- positive
- no effect
- no effect
1 paper more in this group
See all 5 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.