Abstract
This study investigates the impact of foliar application of calcium nanofertilizer (Fitosmart®) on the yield and quality of Vitis vinifera L. (cv. 'Vranac') grapes. The experiment was conducted during the 2023 growing season at a commercial vineyard in Montenegro, where vines were treated with a 0.5% calcium nanofertilizer solution at three critical phenological stages: pre-bloom, post-bloom, and veraison. The results showed a significant increase in grapevine yield, primarily driven by an enhanced number of clusters per vine, while cluster weight exhibited only a minor increase. Chemical analysis revealed delayed sugar accumulation in treated grapes, which impacted must and wine composition by slightly reducing total soluble solids and final alcohol content. Treated wines demonstrated increased levels of total polyphenols and anthocyanins, factors that contribute to the sensory quality of red wines, including aroma authenticity, harmony, and overall impression. These findings suggest that the foliar application of nanocalcium fertilizers can enhance both grape yield and wine quality, making it a promising, sustainable alternative to conventional mineral fertilizers. However, further research is needed to explore its broader applicability across diverse climatic conditions and grapevine varieties.
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Claims 7
Claim · model-written summary
Foliar calcium nanofertilizer significantly increased grapevine yield.
- Taxon
- Vitis vinifera L.
Vitis viniferat0 - Treatment
- foliar application of calcium nanofertilizert0
- Outcome
- grapevine yielde0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“foliar application of calcium nanofertilizer (Fitosmart®) on the yield and quality of Vitis vinifera L.”
e0“The results showed a significant increase in grapevine yield”
Claim · model-written summary
Foliar calcium nanofertilizer enhanced the number of clusters per vine.
- Taxon
- Vitis vinifera L.Vitis viniferat0
- Treatment
- foliar application of calcium nanofertilizert0
- Outcome
- number of clusters per vinee0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“foliar application of calcium nanofertilizer (Fitosmart®) on the yield and quality of Vitis vinifera L.”
e0“primarily driven by an enhanced number of clusters per vine”
Claim · model-written summary
Foliar calcium nanofertilizer caused only a minor increase in cluster weight.
- Taxon
- Vitis vinifera L.Vitis viniferat0
- Treatment
- foliar application of calcium nanofertilizert0
- Outcome
- cluster weighte0
- Direction
- increasee0
- Qualifier
- only a minore0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“foliar application of calcium nanofertilizer (Fitosmart®) on the yield and quality of Vitis vinifera L.”
e0“while cluster weight exhibited only a minor increase”
Claim · model-written summary
Treated grapes showed delayed sugar accumulation.
- Taxon
- Vitis vinifera L.Vitis viniferat0
- Treatment
- foliar application of calcium nanofertilizert0
- Outcome
- sugar accumulatione0
- Direction
- delayede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“foliar application of calcium nanofertilizer (Fitosmart®) on the yield and quality of Vitis vinifera L.”
e0“Chemical analysis revealed delayed sugar accumulation in treated grapes”
Claim · model-written summary
Treated grapes had slightly reduced total soluble solids.
- Taxon
- Vitis vinifera L.Vitis viniferat0
- Treatment
- foliar application of calcium nanofertilizert0
- Outcome
- total soluble solidse0
- Direction
- reducinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“foliar application of calcium nanofertilizer (Fitosmart®) on the yield and quality of Vitis vinifera L.”
e0“slightly reducing total soluble solids and final alcohol content”
Claim · model-written summary
Wine from treated grapes had slightly reduced final alcohol content.
- Taxon
- Vitis vinifera L.Vitis viniferat0
- Treatment
- foliar application of calcium nanofertilizert0
- Outcome
- final alcohol contente0
- Direction
- reducinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“foliar application of calcium nanofertilizer (Fitosmart®) on the yield and quality of Vitis vinifera L.”
e0“slightly reducing total soluble solids and final alcohol content”
Claim · model-written summary
Wine from treated grapes had increased total polyphenols and anthocyanins.
- Taxon
- Vitis vinifera L.Vitis viniferat0
- Treatment
- foliar application of calcium nanofertilizert0
- Outcome
- levels of total polyphenols and anthocyaninse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“foliar application of calcium nanofertilizer (Fitosmart®) on the yield and quality of Vitis vinifera L.”
e0“Treated wines demonstrated increased levels of total polyphenols and anthocyanins”
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nanoparticle · molecular: metabolites · Vitis vinifera (wine grape)Results agree
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8 of 10 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.