Abstract
Nutritional balance methods serve as effective tools for predicting the nutritional status of grapevines and mitigating issues related to nutrient excess or deficiency, thereby influencing yield, fruit quality, and market longevity. This study investigates the effects of pre-harvest applications of calcium (Ca) and magnesium (Mg) at varying concentrations, individually and in combination, on grape quality. Pre-harvest foliar applications were conducted six times across three key phenological stages: pre-bloom, post-bloom, and fruit set. Treated clusters were stored in refrigerated conditions (10°C, 90–95% relative humidity) for 12 days, during which fruit quality was evaluated at harvest and throughout the marketing period. The results demonstrated that prolonged market storage increased decay, weight loss, Soluble solids content (S.S.C.), total sugar content, shattering, berry adherence, and respiration rate, while firmness, total acidity, vitamin C content, and total phenols decreased. All treatments enhanced cluster weight and yield at harvest. The most effective treatment for maintaining cluster quality under market conditions was the combined foliar application of magnesium oxide (MgO, 0.056%) and calcium chloride (CaCL·>, 0.016%). This treatment significantly reduced physiological weight loss, berry shattering, and decay percentage, thereby preserving the marketability of ‘Flame Seedless’ grapes.
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Claims 7
Claim · model-written summary
Longer market storage increased decay, weight loss and shattering.
Verbatim
e0“prolonged market storage increased decay, weight loss, Soluble solids content (S.S.C.), total sugar content, shattering, berry adherence, and respiration rate”
t0“table grapes”
Claim · model-written summary
Longer market storage increased soluble solids and total sugar content.
Verbatim
e0“prolonged market storage increased decay, weight loss, Soluble solids content (S.S.C.), total sugar content, shattering, berry adherence, and respiration rate”
t0“table grapes”
Claim · model-written summary
Longer market storage increased berry adherence and respiration rate.
Verbatim
e0“prolonged market storage increased decay, weight loss, Soluble solids content (S.S.C.), total sugar content, shattering, berry adherence, and respiration rate”
t0“table grapes”
Claim · model-written summary
Longer market storage decreased firmness, acidity, vitamin C and phenols.
Verbatim
e0“firmness, total acidity, vitamin C content, and total phenols decreased”
t0“table grapes”
Claim · model-written summary
All preharvest treatments enhanced cluster weight and yield at harvest.
- Taxon
- table grapest0
- Organ / stage
- at harveste0
- Treatment
- All treatmentse0
- Outcome
- cluster weight and yielde0
- Direction
- enhancede0
Not reportedComparator
Verbatim
e0“All treatments enhanced cluster weight and yield at harvest”
t0“table grapes”
Claim · model-written summary
Combined magnesium oxide and calcium chloride was the most effective treatment for maintaining market quality.
- Taxon
- table grapest0
- Treatment
- combined foliar application of magnesium oxide (MgO, 0.056%) and calcium chloride (CaCL·>, 0.016%)e0
- Outcome
- cluster qualitye0
- Direction
- most effectivee0
- Setting
- market conditionse0
Not reportedComparator
Verbatim
e0“The most effective treatment for maintaining cluster quality under market conditions was the combined foliar application of magnesium oxide (MgO, 0.056%) and calcium chloride (CaCL·>, 0.016%)”
t0“table grapes”
Claim · model-written summary
The combined spray significantly reduced physiological weight loss, shattering and decay.
- Taxon
- table grapest0
- Treatment
- combined foliar application of magnesium oxide (MgO, 0.056%) and calcium chloride (CaCL·>, 0.016%)e1
- Outcome
- physiological weight loss, berry shattering, and decay percentagee0
- Direction
- reducede0
Not reportedComparator
Verbatim
e0“This treatment significantly reduced physiological weight loss, berry shattering, and decay percentage”
e1“combined foliar application of magnesium oxide (MgO, 0.056%) and calcium chloride (CaCL·>, 0.016%)”
t0“table grapes”
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