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Aims <p>This study investigates the efficacy of arbuscular mycorrhizal fungi (M) and compost (C), individually and in combination (MC), in enhancing the physiological performance, yield, soil enzymes and quality of tomatoes under drought field conditions.</p> Methods <p>Field trials were carried out using a factorial experimental design with two irrigation regimes: full irrigation at 100% ETc (crop evapotranspiration) and deficit irrigation at 50% ETc.</p> Results <p>Under deficit irrigation, the MC treatment exhibited the highest protein and total soluble sugars content (TSS) in fruits, with increases of 39% and 86%, respectively. Additionally, MC application significantly elevated osmolytes in leaves: protein (130.1%), TSS (190.33%) and proline (223.69%) and key antioxidant compounds: carotenoids by 133%, lycopene by 54%, polyphenols by 309%, flavonoids by 129% and peoxidase by 185.42% relative to controls. Assessment of the activities of soil antioxidant enzymes also demonstrated notable improvements in peroxidase (POX), polyphenol oxidase (PPO), catechol oxidase, and alkaline phosphatase—showed marked enhancement with M, C, and MC applications. POX activity was most pronounced in M-treated soils (64%), while PPO activity reached the most enhancement in MC-treated soils with an 89% increase compared the control. Catechol oxidase and alkaline phosphatase activity was highest in the MC treatment.</p> Conclusions <p>These findings underline the synergistic benefits of biostimulants/biofertilizers in improving plant performance, quality of fruit and soil functionality under field conditions.</p>

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Integrating arbuscular mycorrhizal fungi and compost to enhance tomato quality, antioxidant system, and soil functioning under deficit irrigation in mediterranean field conditions

  • 期刊论文

  • 发表日期：

    2026年3月28日

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  • Fatima-Ezzahra Soussani,
  • Chayma Ikan,
  • Naira Sbbar,
  • Redouane Ouhaddou,
  • Abderrahim Boutasknit,
  • Lahoucine Ech-chatir,
  • Farid Errouh,
  • Julio Cesar Rodrigez,
  • Nizar El Mazouni,
  • Salah  Er-Raki,
  • Rachid Benkirane,
  • Abdelilah Meddich

摘要

Aims

This study investigates the efficacy of arbuscular mycorrhizal fungi (M) and compost (C), individually and in combination (MC), in enhancing the physiological performance, yield, soil enzymes and quality of tomatoes under drought field conditions.

Methods

Field trials were carried out using a factorial experimental design with two irrigation regimes: full irrigation at 100% ETc (crop evapotranspiration) and deficit irrigation at 50% ETc.

Results

Under deficit irrigation, the MC treatment exhibited the highest protein and total soluble sugars content (TSS) in fruits, with increases of 39% and 86%, respectively. Additionally, MC application significantly elevated osmolytes in leaves: protein (130.1%), TSS (190.33%) and proline (223.69%) and key antioxidant compounds: carotenoids by 133%, lycopene by 54%, polyphenols by 309%, flavonoids by 129% and peoxidase by 185.42% relative to controls. Assessment of the activities of soil antioxidant enzymes also demonstrated notable improvements in peroxidase (POX), polyphenol oxidase (PPO), catechol oxidase, and alkaline phosphatase—showed marked enhancement with M, C, and MC applications. POX activity was most pronounced in M-treated soils (64%), while PPO activity reached the most enhancement in MC-treated soils with an 89% increase compared the control. Catechol oxidase and alkaline phosphatase activity was highest in the MC treatment.

Conclusions

These findings underline the synergistic benefits of biostimulants/biofertilizers in improving plant performance, quality of fruit and soil functionality under field conditions.