Abstract
The double cropping system has been commercially adopted in subtropical viticulture regions. However, very limited information about rootstock and seasonal effects on berry quality traits are available for this unique production system. Developing ‘Kyoho’ berries from own-rooted vines and from vines on 5C and 1202C rootstocks were periodically sampled from veraison until harvest in two consecutive cropping cycles to document the potential seasonal influence on rootstock effects. Anthocyanin concentration in berry skin, total soluble solids content (TSS), and titratable acidity (TA) were analyzed. In both cropping cycles, own-rooted vines produced berries with the highest anthocyanin concentration while vines on 1202C produced berries with the lowest anthocyanin concentration among the three scion/rootstocks. Anthocyanin concentrations were not differentiated by the differential climate pattern between the summer and the winter cropping cycles. Berries of own-rooted ‘Kyoho’ and ‘Kyoho’/5C vines accumulated satisfactory and equal amount of TSS in both cropping cycles. 1202C rootstocks did not affect berry TSS in the summer cropping cycle but reduced TSS in the winter cropping cycle. Significant rootstock and seasonal effects on berry TA were detected. Own-rooted vines produced berries with the lowest TA while vines on 1202C produced berries with the highest TA among the three scion/rootstock combinations. TA of berries from the winter cropping cycle was significantly higher than that from the summer cropping cycle especially in ‘Kyoho’/1202C. Relationships between anthocyanins and TSS of developing berries after veraison properly fitted into a sigmoidal function regardless of rootstocks and cropping cycles. However, the duration of the initial lag phase, the onset and the trend of both quality triats in the increasing phase, and the presence and degree of the final lag phase in the relationship were all modulated by rootstocks and by seasonal variations.
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Claims 13
Claim · model-written summary
Own-rooted vines produced berries with the highest anthocyanin concentration among the grape scion/rootstock combinations.
Verbatim
t0“grape berries in subtropical double cropping system”
e0“own-rooted vines produced berries with the highest anthocyanin concentration”
e1“vines on 1202C produced berries with the lowest anthocyanin concentration”
Claim · model-written summary
Vines on 1202C produced berries with the lowest anthocyanin concentration.
Verbatim
t0“grape berries in subtropical double cropping system”
e0“vines on 1202C produced berries with the lowest anthocyanin concentration”
e1“own-rooted vines produced berries with the highest anthocyanin concentration”
Claim · model-written summary
Anthocyanin concentrations did not differ between the summer and the winter cropping cycles.
Verbatim
t0“grape berries in subtropical double cropping system”
e0“Anthocyanin concentrations were not differentiated by the differential climate pattern between the summer and the winter cropping cycles”
Claim · model-written summary
Berries of own-rooted and 5C-rootstocked Kyoho vines accumulated equal amounts of TSS in both cropping cycles.
Verbatim
t0“grape berries in subtropical double cropping system”
e0“Berries of own-rooted ‘Kyoho’ and ‘Kyoho’/5C vines accumulated satisfactory and equal amount of TSS in both cropping cycles”
Claim · model-written summary
1202C rootstocks did not affect berry TSS in the summer cropping cycle.
- Taxon
- grapet0
- Treatment
- 1202C rootstockse0
- Outcome
- berry TSSe0
- Direction
- no_changeinferrede0
- Qualifier
- in the summer cropping cyclee0
Not reportedComparator
Verbatim
t0“grape berries in subtropical double cropping system”
e0“1202C rootstocks did not affect berry TSS in the summer cropping cycle but reduced TSS in the winter cropping cycle”
Claim · model-written summary
1202C rootstocks reduced berry TSS in the winter cropping cycle.
- Taxon
- grapet0
- Treatment
- 1202C rootstockse0
- Outcome
- berry TSSe0
- Direction
- reducede0
- Qualifier
- in the winter cropping cyclee0
Not reportedComparator
Verbatim
t0“grape berries in subtropical double cropping system”
e0“1202C rootstocks did not affect berry TSS in the summer cropping cycle but reduced TSS in the winter cropping cycle”
Claim · model-written summary
Rootstock and seasonal effects on berry TA were significant.
Not reportedDirection
Verbatim
t0“grape berries in subtropical double cropping system”
e0“Significant rootstock and seasonal effects on berry TA were detected”
Claim · model-written summary
Own-rooted vines produced berries with the lowest titratable acidity (TA).
Verbatim
t0“grape berries in subtropical double cropping system”
e0“Own-rooted vines produced berries with the lowest TA”
e1“vines on 1202C produced berries with the highest TA”
Claim · model-written summary
Vines on 1202C produced berries with the highest titratable acidity (TA).
Verbatim
t0“grape berries in subtropical double cropping system”
e0“vines on 1202C produced berries with the highest TA”
e1“Own-rooted vines produced berries with the lowest TA”
Claim · model-written summary
TA of berries from the winter cropping cycle was significantly higher than that from the summer cropping cycle.
Verbatim
t0“grape berries in subtropical double cropping system”
e0“TA of berries from the winter cropping cycle was significantly higher than that from the summer cropping cycle”
Claim · model-written summary
Anthocyanin and TSS of developing berries after veraison fitted a sigmoidal function regardless of rootstock and cropping cycle.
Verbatim
t0“grape berries in subtropical double cropping system”
e0“Relationships between anthocyanins and TSS of developing berries after veraison properly fitted into a sigmoidal function”
Claim · model-written summary
The duration of the initial lag phase, the onset and the trend of the quality traits were modulated by rootstocks and seasonal variations.
- Taxon
- grapet0
- Treatment
- rootstocks and by seasonal variationse0
- Outcome
- the duration of the initial lag phase, the onset and the trende0
Not reportedDirection
Verbatim
t0“grape berries in subtropical double cropping system”
e0“the duration of the initial lag phase, the onset and the trend of both quality triats in the increasing phase, and the presence and degree of the final lag phase in the relationship were all modulated by rootstocks and by seasonal variations”
Claim · model-written summary
The presence and degree of the final lag phase were modulated by rootstocks and seasonal variations.
- Taxon
- grapet0
- Treatment
- rootstocks and by seasonal variationse0
- Outcome
- the presence and degree of the final lag phasee0
Not reportedDirection
Verbatim
t0“grape berries in subtropical double cropping system”
e0“the duration of the initial lag phase, the onset and the trend of both quality triats in the increasing phase, and the presence and degree of the final lag phase in the relationship were all modulated by rootstocks and by seasonal variations”
The same questions in other papers
grafting · quality: sugar starch · VitisPositive and negative results
2 papers in the same direction as this paper · 6 in the opposite direction
- positive
- no effect
- positive
5 papers more in this group
See all 9 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.