Abstract
In agriculture, plant biostimulants have become necessary to meet the United Nations sustainable development goals (UN-SDGs) and advance the European Green Deal. In particular, seaweed-based biostimulants have received a greater acceptance for their several benefits in crop growth and yield. In this study, we evaluated the effects of foliar applications of a vegetable- and brown-algae-based extract (Ascophyllum nodosum (L.) Le Jol. on grapes (Vitis vinifera L. cv. Montepulciano) and olives (Olea europaea L. cv. Coratina) and its agronomic performance in two field experiments in the Apulia region, which is known for its modern agricultural sector. The results highlight that the crop responses differ in grape and olive orchards. The biostimulant application determined significant increases in bunch development (+9.5%) and bunch weight (+10%) compared to the untreated control. In the olive orchard, the yield was not significantly influenced by biostimulant application, whereas we observed quality improvement in the olive oil of the treated plants compared to the control. To better understand the mechanisms behind this difference, the research concludes by suggesting that further research pursues in-depth studies and high scientific and technical proficiency to determine and optimise the rates and timing of applications.
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Claims 4
Claim · model-written summary
The biostimulant increased grape bunch development by 9.5% relative to untreated control, significantly.
- Taxon
- Vitis vinifera L.
Vitis viniferae1 - Material
- Montepulcianoe1
- Treatment
- foliar applications of a vegetable- and brown-algae-based extracte1
- Outcome
- bunch developmente2
- Direction
- increasese2
- Value
- +9.5%e2
- Comparator
- untreated controle2
- Setting
- two field experiments in the Apulia regione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e1“foliar applications of a vegetable- and brown-algae-based extract (Ascophyllum nodosum (L.) Le Jol. on grapes (Vitis vinifera L. cv. Montepulciano) and olives (Olea europaea L. cv. Coratina) and its agronomic performance in two field experiments in the Apulia region”
e2“The biostimulant application determined significant increases in bunch development (+9.5%) and bunch weight (+10%) compared to the untreated control”
Claim · model-written summary
The biostimulant increased grape bunch weight by 10% relative to untreated control, significantly.
- Taxon
- Vitis vinifera L.
Vitis viniferae1 - Material
- Montepulcianoe1
- Treatment
- foliar applications of a vegetable- and brown-algae-based extracte1
- Outcome
- bunch weighte2
- Direction
- increasese2
- Value
- +10%e2
- Comparator
- untreated controle2
- Setting
- two field experiments in the Apulia regione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e1“foliar applications of a vegetable- and brown-algae-based extract (Ascophyllum nodosum (L.) Le Jol. on grapes (Vitis vinifera L. cv. Montepulciano) and olives (Olea europaea L. cv. Coratina) and its agronomic performance in two field experiments in the Apulia region”
e2“The biostimulant application determined significant increases in bunch development (+9.5%) and bunch weight (+10%) compared to the untreated control”
Claim · model-written summary
In the olive orchard, the biostimulant did not significantly change olive yield compared to control.
- Taxon
- Olea europaea L.
Olea europaeae1 - Material
- Coratinae1
- Treatment
- biostimulant applicatione3
- Outcome
- yielde3
- Direction
- no_changeinferrede3
- Comparator
- controle3
- Setting
- two field experiments in the Apulia regione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e1“foliar applications of a vegetable- and brown-algae-based extract (Ascophyllum nodosum (L.) Le Jol. on grapes (Vitis vinifera L. cv. Montepulciano) and olives (Olea europaea L. cv. Coratina) and its agronomic performance in two field experiments in the Apulia region”
e3“In the olive orchard, the yield was not significantly influenced by biostimulant application, whereas we observed quality improvement in the olive oil of the treated plants compared to the control”
Claim · model-written summary
The biostimulant improved olive oil quality of treated olive plants compared to control.
- Taxon
- Olea europaea L.
Olea europaeae1 - Treatment
- biostimulant applicatione3
- Outcome
- qualitye3
- Direction
- improvemente3
- Comparator
- controle3
- Setting
- two field experiments in the Apulia regione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e1“foliar applications of a vegetable- and brown-algae-based extract (Ascophyllum nodosum (L.) Le Jol. on grapes (Vitis vinifera L. cv. Montepulciano) and olives (Olea europaea L. cv. Coratina) and its agronomic performance in two field experiments in the Apulia region”
e3“In the olive orchard, the yield was not significantly influenced by biostimulant application, whereas we observed quality improvement in the olive oil of the treated plants compared to the control”
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