Abstract
These tests were carried out to find out how calcium and 1-MCP treatment affected the preservation of grapes, as grapes are highly susceptible to decay during post-harvest storage. The grapes were treated with 5 g/L calcium at the flowering stage, followed by 1 μL/L 1-MCP treatment after harvesting. When grapevines were treated with a combination of calcium and 1-MCP, the marketable fruit rate (At day 56 of storage, the 1-MCP + Ca2+ treatment group was still 93%, an increase of 29.03% compared to the control group.) and quality improved (At day 28 of storage, the VC content of the 1-MCP + Ca2+ treated group was 4.35 mg/100g, an increase of 25.01% compared to the control group.), while the fruit weight loss rate decreased (At day 56 of storage, the weight loss of the control group was 6.97%, an increase of 39.43% compared to the 1-MCP + Ca2+ treated group.). According to the experimental results, there are several reasons for this. First, in the early stages of fruit storage, the concentration of soluble pectin and soluble fiber, as well as the activities of pectinase and cellulase (related gene levels) were decreased. Secondly, the activity of antioxidant enzymes was increased, while MDA content was decreased. Third, during fruit storage, the respiratory intensity and ethylene release rate were reduced, as was the activity of energy metabolism enzymes. As a result, the aging and deterioration of the fruit during storage were delayed. Principal component analysis revealed that the calcium and 1-MCP combination therapy slowed the decline in grape berry quality, followed by the calcium-treated and 1-MCP-treated fruits. In contrast, grape berry quality declined the most rapidly in the control group.
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Claims 11
Claim · model-written summary
Combined calcium and 1-MCP increased the marketable fruit rate to 93% at day 56, 29.03% above control.
Verbatim
e0“the marketable fruit rate (At day 56 of storage, the 1-MCP + Ca2+ treatment group was still 93%, an increase of 29.03% compared to the control group.)”
t0“grapes”
Claim · model-written summary
Combined treatment raised VC content to 4.35 mg/100g at day 28, 25.01% above control.
Verbatim
e0“the VC content of the 1-MCP + Ca2+ treated group was 4.35 mg/100g, an increase of 25.01% compared to the control group”
t0“grapes”
Claim · model-written summary
Combined treatment lowered fruit weight loss relative to control at day 56.
Verbatim
e0“the weight loss of the control group was 6.97%, an increase of 39.43% compared to the 1-MCP + Ca2+ treated group”
t0“Effect of calcium spray at flowering combined with post-harvest 1-MCP treatment on the preservation of grapes”
Claim · model-written summary
Combined treatment reduced soluble pectin and soluble fiber early in storage.
- Taxon
- grapest0
- Treatment
- calcium spray at flowering combined with post-harvest 1-MCP treatmentt0
- Outcome
- concentration of soluble pectin and soluble fibere0
- Direction
- decreasede0
Not reportedComparator
Verbatim
e0“in the early stages of fruit storage, the concentration of soluble pectin and soluble fiber, as well as the activities of pectinase and cellulase (related gene levels) were decreased”
t0“Effect of calcium spray at flowering combined with post-harvest 1-MCP treatment on the preservation of grapes”
Claim · model-written summary
Combined treatment reduced pectinase and cellulase activities and related gene levels early in storage.
- Taxon
- grapest0
- Treatment
- calcium spray at flowering combined with post-harvest 1-MCP treatmentt0
- Outcome
- activities of pectinase and cellulase (related gene levels)e0
- Direction
- decreasede0
Not reportedComparator
Verbatim
e0“the activities of pectinase and cellulase (related gene levels) were decreased”
t0“Effect of calcium spray at flowering combined with post-harvest 1-MCP treatment on the preservation of grapes”
Claim · model-written summary
Combined treatment increased antioxidant enzyme activity.
- Taxon
- grapest0
- Treatment
- calcium spray at flowering combined with post-harvest 1-MCP treatmentt0
- Outcome
- activity of antioxidant enzymese0
- Direction
- increasede0
Not reportedComparator
Verbatim
e0“the activity of antioxidant enzymes was increased”
t0“Effect of calcium spray at flowering combined with post-harvest 1-MCP treatment on the preservation of grapes”
Claim · model-written summary
Combined treatment decreased MDA content.
- Taxon
- grapest0
- Treatment
- calcium spray at flowering combined with post-harvest 1-MCP treatmentt0
- Outcome
- MDA contente0
- Direction
- decreasede0
Not reportedComparator
Verbatim
e0“MDA content was decreased”
t0“Effect of calcium spray at flowering combined with post-harvest 1-MCP treatment on the preservation of grapes”
Claim · model-written summary
Combined treatment reduced respiratory intensity and ethylene release during fruit storage.
- Taxon
- grapest0
- Treatment
- calcium spray at flowering combined with post-harvest 1-MCP treatmentt0
- Outcome
- respiratory intensity and ethylene release ratee0
- Direction
- reducede0
Not reportedComparator
Verbatim
e0“during fruit storage, the respiratory intensity and ethylene release rate were reduced”
t0“Effect of calcium spray at flowering combined with post-harvest 1-MCP treatment on the preservation of grapes”
Claim · model-written summary
Combined treatment reduced energy metabolism enzyme activity during storage.
- Taxon
- grapest0
- Treatment
- calcium spray at flowering combined with post-harvest 1-MCP treatmentt0
- Outcome
- activity of energy metabolism enzymese0
Not reportedComparatorDirection
Verbatim
e0“as was the activity of energy metabolism enzymes”
t0“Effect of calcium spray at flowering combined with post-harvest 1-MCP treatment on the preservation of grapes”
Claim · model-written summary
Combined treatment delayed grape aging and deterioration during storage.
- Taxon
- grapest0
- Treatment
- calcium spray at flowering combined with post-harvest 1-MCP treatmentt0
- Outcome
- aging and deterioration of the fruite0
- Direction
- delayede0
Not reportedComparator
Verbatim
e0“the aging and deterioration of the fruit during storage were delayed”
t0“Effect of calcium spray at flowering combined with post-harvest 1-MCP treatment on the preservation of grapes”
Claim · model-written summary
Quality declined slowest with combined treatment, followed by calcium and 1-MCP alone, and fastest in controls.
Verbatim
e0“the calcium and 1-MCP combination therapy slowed the decline in grape berry quality, followed by the calcium-treated and 1-MCP-treated fruits. In contrast, grape berry quality declined the most rapidly in the control group”
t0“grapes”
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8 of 23 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.