Abstract
Recycling vineyard pruning residues into compost and vermicompost represents a sustainable strategy to reduce viticulture’s reliance on chemical fertilizers. Nonetheless, their effects on plant performance remain poorly understood. This study evaluated the effect of vine pruning residues compost and vermicompost on the physiological, biochemical, and growth performance of Vitis vinifera L. cv. Touriga Franca, in comparison with mineral fertilization and an unfertilized control. A pot experiment was conducted from April to September 2024 in northern Portugal under Mediterranean climate conditions, using one-year-old grapevines and subjected to four fertilization treatments. Leaf gas exchange, chlorophyll a fluorescence, photosynthetic pigments, antioxidant and osmoprotective metabolites, and shoot and root development were assessed at three sampling dates during the growing season. Organic amendments enhanced photosynthetic performance and root growth relative to the unfertilized control. Vermicompost promoted higher CO2 assimilation, stomatal conductance, and shoot and root elongation, whereas compost increased intrinsic water use efficiency, photochemical regulation, and root biomass. Biochemical analyses indicated that compost favored protein and carotenoid accumulation, while vermicompost increased proline and later protein levels, alongside reduced phenolic and flavonoid contents. Despite their similar chemical composition, compost and vermicompost induced distinct physiological responses driven by differences in biological activity and nutrient dynamics. These findings demonstrate that pruning-derived organic amendments can match mineral fertilization in supporting grapevine performance while offering additional benefits for stress regulation and sustainable vineyard management.
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Claims 16
Claim · model-written summary
Organic amendments enhanced photosynthetic performance compared with an unfertilized control.
- Treatment
- Organic amendmentse0
- Outcome
- photosynthetic performancee0
- Direction
- enhancede0
- Comparator
- unfertilized controle0
VitisOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Grapevine”
e0“Organic amendments enhanced photosynthetic performance and root growth relative to the unfertilized control.”
Claim · model-written summary
Organic amendments enhanced root growth compared with an unfertilized control.
- Treatment
- Organic amendmentse0
- Outcome
- root growthe0
- Direction
- enhancede0
- Comparator
- unfertilized controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Grapevine”
e0“Organic amendments enhanced photosynthetic performance and root growth relative to the unfertilized control.”
Claim · model-written summary
Vermicompost promoted higher CO2 assimilation.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Grapevine”
e0“Vermicompost promoted higher CO2 assimilation, stomatal conductance, and shoot and root elongation, whereas compost increased intrinsic water use efficiency, photochemical regulation, and root biomass.”
Claim · model-written summary
Vermicompost promoted higher stomatal conductance.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Grapevine”
e0“Vermicompost promoted higher CO2 assimilation, stomatal conductance, and shoot and root elongation, whereas compost increased intrinsic water use efficiency, photochemical regulation, and root biomass.”
Claim · model-written summary
Vermicompost promoted higher shoot and root elongation.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Grapevine”
e0“Vermicompost promoted higher CO2 assimilation, stomatal conductance, and shoot and root elongation, whereas compost increased intrinsic water use efficiency, photochemical regulation, and root biomass.”
Claim · model-written summary
Compost increased intrinsic water use efficiency.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Grapevine”
e0“Vermicompost promoted higher CO2 assimilation, stomatal conductance, and shoot and root elongation, whereas compost increased intrinsic water use efficiency, photochemical regulation, and root biomass.”
Claim · model-written summary
Compost increased photochemical regulation.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Grapevine”
e0“Vermicompost promoted higher CO2 assimilation, stomatal conductance, and shoot and root elongation, whereas compost increased intrinsic water use efficiency, photochemical regulation, and root biomass.”
Claim · model-written summary
Compost increased root biomass.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Grapevine”
e0“Vermicompost promoted higher CO2 assimilation, stomatal conductance, and shoot and root elongation, whereas compost increased intrinsic water use efficiency, photochemical regulation, and root biomass.”
Claim · model-written summary
Compost favored protein accumulation.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Grapevine”
e0“Biochemical analyses indicated that compost favored protein and carotenoid accumulation, while vermicompost increased proline and later protein levels, alongside reduced phenolic and flavonoid contents.”
Claim · model-written summary
Compost favored carotenoid accumulation.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Grapevine”
e0“Biochemical analyses indicated that compost favored protein and carotenoid accumulation, while vermicompost increased proline and later protein levels, alongside reduced phenolic and flavonoid contents.”
Claim · model-written summary
Vermicompost increased proline levels.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Grapevine”
e0“Biochemical analyses indicated that compost favored protein and carotenoid accumulation, while vermicompost increased proline and later protein levels, alongside reduced phenolic and flavonoid contents.”
Claim · model-written summary
Vermicompost increased protein levels.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Grapevine”
e0“Biochemical analyses indicated that compost favored protein and carotenoid accumulation, while vermicompost increased proline and later protein levels, alongside reduced phenolic and flavonoid contents.”
Claim · model-written summary
Vermicompost reduced phenolic contents.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Grapevine”
e0“Biochemical analyses indicated that compost favored protein and carotenoid accumulation, while vermicompost increased proline and later protein levels, alongside reduced phenolic and flavonoid contents.”
Claim · model-written summary
Vermicompost reduced flavonoid contents.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Grapevine”
e0“Biochemical analyses indicated that compost favored protein and carotenoid accumulation, while vermicompost increased proline and later protein levels, alongside reduced phenolic and flavonoid contents.”
Claim · model-written summary
Compost and vermicompost induced distinct physiological responses despite similar chemical composition.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Grapevine”
e0“Despite their similar chemical composition, compost and vermicompost induced distinct physiological responses driven by differences in biological activity and nutrient dynamics.”
Claim · model-written summary
Pruning-derived amendments could match mineral fertilization in supporting grapevine performance.
- Treatment
- pruning-derived organic amendmentse0
- Outcome
- grapevine performancee0
- Direction
- matche0
- Comparator
- mineral fertilizatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These findings demonstrate that pruning-derived organic amendments can match mineral fertilization in supporting grapevine performance”
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See all 6 papers →8 of 9 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.