What question did this study set out to answer?

The study aims to evaluate how fertilization, irrigation, and microbial biostimulants affect the antioxidant profile of various sweet pepper genotypes.

April 23, 2026PlantsOpen Access

Effect of Fertilization, Irrigation and Microbial Biostimulant on the Antioxidant Profile of Some Sweet Pepper Genotypes

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Authors

MJMarisa Jiménez-Pérez EMEstela Moreno‐PerisUniversitat Politècnica de València AAAna M. Adalid-MartínezUniversitat Politècnica de València

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Implication

Multi-genotype evaluation demonstrates improved antioxidant levels in sweet peppers, indicating sustainable production potential.

Key Points

The study aims to evaluate how fertilization, irrigation, and microbial biostimulants affect the antioxidant profile of various sweet pepper genotypes.
Evaluated seven sweet pepper genotypes under six treatments combining different levels of fertilization and irrigation.
Antioxidants like vitamin C, flavonoids, and carotenoids were quantified using HPLC and spectrophotometry.
Assessed the effects of plant growth-promoting rhizobacteria on antioxidant content under reduced input conditions.
Certain genotypes showed significant increases in vitamin C (+102%), flavonoids (+86% for kaempferol), and carotenoids (+67% for yellow-orange carotenoids) under low-input treatments.
PGPR notably increased individual flavonoids, with luteolin rising by up to 96% in green-ripe Piquillo and quercetin by 128% in fully ripe Isabel F1 fruits.
Many genotypes maintained antioxidant levels under stress conditions, supporting traditional genotypes for sustainable farming.

Cite This Study

Jiménez-Pérez et al. (2026) studied this question.

synapsesocial.com/papers/69e9b89b85696592c86ebbc2 https://doi.org/10.3390/plants15081278

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Effect of Fertilization, Irrigation and Microbial Biostimulant on the Antioxidant Profile of Some Sweet Pepper Genotypes

Discussion

Member takes

Implication

Key Points

Cite This Study

Effect of Fertilization, Irrigation and Microbial Biostimulant on the Antioxidant Profile of Some Sweet Pepper Genotypes

Discussion

Member takes

Implication

Key Points

Cite This Study

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