Abstract
• The biostimulants increased strawberry fruit weight by 85% under water stress. • The treatments improved water retention, reduced cell damage, and enhanced physiological resilience. • The application of biostimulants boosted root biomass and resource allocation to fruits. • The biostimulants increased antioxidant metabolites, supporting plant health under drought stress. Strawberry ( Fragaria × ananassa Duch.) is highly sensitive to water deficits, necessitating strategies to enhance irrigation efficiency while maintaining crop productivity and fruit quality. This study evaluated the effects of different irrigation regimes (30%, 30-70%, and 70% of field capacity) and pre-harvest applications of two seaweed-based biostimulants ( Ascophyllum nodosum extracts) on strawberry growth, physiology, and fruit quality. The treatments involved foliar applications every 15 days throughout the vegetative and productive phases. Key physiological parameters, including gas exchange, electrolyte leakage, and photosynthetic pigments, were assessed in leaves, alongside biochemical analyses of fruit composition, such as phenolic compounds and antioxidant activity. The application of A. nodosum -based biostimulants demonstrated significant benefits in strawberry plants under water stress conditions. Physiological attributes such as gas exchange, relative water content, and total carotenoids were improved, while electrolyte leakage was reduced. Biochemical parameters of the fruits, including antioxidant activity and concentrations of phenolic, flavonoid, and ortho -diphenol compounds, were positively influenced. Fresh fruit weight and diameter were also enhanced, particularly with the application of N19-67 under water deficit conditions, which increased fruit weight. Meanwhile, N19-68 promoted higher phenolic and antioxidant compounds under optimal water conditions. At the end of the experiment, plant growth analysis further confirmed the efficacy of these biostimulants, which showed a significant level of specificity depending on application rates and stress levels. These findings underscore the potential of A. nodosum -based biostimulants as effective tools for mitigating water stress effects and improving both physiological and quality parameters in strawberry cultivation.
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Claims 8
Claim · model-written summary
Biostimulants increased strawberry fruit weight by 85% under water stress.
- Taxon
- strawberry
_single2.jpg?width=60)
Fragaria ×ananassae0 - Treatment
- biostimulantse0
- Outcome
- fruit weighte0
- Direction
- increasede0
- Value
- 85%e0
- Qualifier
- under water stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
e0“The biostimulants increased strawberry fruit weight by 85% under water stress”
Claim · model-written summary
Biostimulants improved gas exchange, relative water content, and total carotenoids under water stress.
Not reportedTaxonTreatmentComparator
Verbatim
e0“Physiological attributes such as gas exchange, relative water content, and total carotenoids were improved”
t0“strawberry”
Claim · model-written summary
Biostimulants reduced electrolyte leakage.
Not reportedTaxonTreatmentComparator
Verbatim
e0“while electrolyte leakage was reduced”
t0“strawberry”
Claim · model-written summary
Biostimulants positively influenced fruit antioxidant activity and phenolic and flavonoid concentrations.
- Organ / stage
- fruitse0
- Outcome
- antioxidant activity and concentrations of phenolic, flavonoid, and ortho -diphenol compoundse0
- Direction
- positively influencede0
Not reportedTaxonTreatmentComparator
Verbatim
e0“Biochemical parameters of the fruits, including antioxidant activity and concentrations of phenolic, flavonoid, and ortho -diphenol compounds, were positively influenced”
t0“strawberry”
Claim · model-written summary
Fruit weight and diameter increased, especially with N19-67 under water deficit.
- Treatment
- application of N19-67e0
- Outcome
- Fresh fruit weight and diametere0
- Direction
- enhancede0
- Qualifier
- under water deficit conditionse0
Not reportedTaxonComparator
Verbatim
e0“Fresh fruit weight and diameter were also enhanced, particularly with the application of N19-67 under water deficit conditions”
t0“strawberry”
Claim · model-written summary
N19-68 promoted higher fruit phenolic and antioxidant compounds under optimal water.
- Treatment
- N19-68e0
- Outcome
- phenolic and antioxidant compoundse0
- Direction
- highere0
- Qualifier
- under optimal water conditionse0
Not reportedTaxonComparator
Verbatim
e0“N19-68 promoted higher phenolic and antioxidant compounds under optimal water conditions”
t0“strawberry”
Claim · model-written summary
Biostimulants boosted root biomass and resource allocation to fruit.
- Treatment
- application of biostimulantse0
- Outcome
- root biomass and resource allocation to fruitse0
- Direction
- boostede0
Not reportedTaxonComparator
Verbatim
e0“The application of biostimulants boosted root biomass and resource allocation to fruits”
t0“strawberry”
Claim · model-written summary
Biostimulant effects on plant growth depended on application rates and stress levels.
Not reportedTaxonDirection
Verbatim
e0“plant growth analysis further confirmed the efficacy of these biostimulants, which showed a significant level of specificity depending on application rates and stress levels”
t0“strawberry”
The same questions in other papers
other · yield · Fragaria x ananassa (strawberry)Positive and negative results
32 papers in the same direction as this paper · 8 in the opposite direction
- no effect
- negative
- no effect
37 papers more in this group
See all 41 papers →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.