[The influence of a low- and high-frequency electromagnetic fields on seeds].

Biofizika · 2005 · Benefit · Insufficient evidence

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BenefitInsufficient evidencePaper 5186

Study snapshot

PublicationBiofizika · 2005

Study typeunknown

Reported directionBenefit

Evidence ratingInsufficient

Abstract

It was shown that the exposure of seeds in the rest phase to a low-frequency pulse electromagnetic field leads to substantial changes in seed physiology during germination. The changes at the physiological level in sprouting seeds depend not only on the frequency of the external EMF and its power characteristics but also on the kind of seeds. Low- and high-frequency electromagnetic fields are able to produce a biostimulation effect; however, the mechanisms of its appearance are different in their nature. The biochemical studies of seeds after EMF treatment in the modes resulting in expressed biological effects showed an increase in the activity of alpha-amylase, which testifies an increase in the gibberellin output and in the activity of the hydrolytic enzyme sour phosphatase. The response of seeds to EMF treatment demonstrates the possibility of electromagnetic control of growth processes.

Machine Enhanced Logic

AI evidence extraction

Structured fields below were generated from the paper’s abstract and metadata to make the evidence easier to inspect. Automated extraction may be incomplete or incorrect; verify important details against the original paper.

Study typeunknown

Effect directionbenefit

PopulationSeeds (rest phase; sprouting/germinating seeds)

Sample sizeNot supplied

ExposureNot supplied

Evidence strengthInsufficientConfidence: 62% · Peer reviewed: yes

Main findings

Exposure of seeds in the rest phase to a low-frequency pulse electromagnetic field was reported to cause substantial physiological changes during germination. Effects depended on EMF frequency/power characteristics and seed type; both low- and high-frequency fields were described as producing biostimulation, with increased alpha-amylase activity and increased activity of hydrolytic enzyme sour phosphatase in modes with expressed biological effects.

Outcomes measured

Seed physiology during germination
Biostimulation/growth processes
Alpha-amylase activity
Gibberellin output (inferred from alpha-amylase activity)
Hydrolytic enzyme sour phosphatase activity

Limitations

Study design not described in the abstract (e.g., controls, randomization, blinding).
No exposure parameters provided (frequencies, field strengths/power characteristics, duration).
No sample size or statistical details reported.
Seed species/types not specified in the abstract.

View raw extracted JSON

{
  "study_type": "unknown",
  "exposure": {
    "band": null,
    "source": null,
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": null
  },
  "population": "Seeds (rest phase; sprouting/germinating seeds)",
  "sample_size": null,
  "outcomes": [
    "Seed physiology during germination",
    "Biostimulation/growth processes",
    "Alpha-amylase activity",
    "Gibberellin output (inferred from alpha-amylase activity)",
    "Hydrolytic enzyme sour phosphatase activity"
  ],
  "main_findings": "Exposure of seeds in the rest phase to a low-frequency pulse electromagnetic field was reported to cause substantial physiological changes during germination. Effects depended on EMF frequency/power characteristics and seed type; both low- and high-frequency fields were described as producing biostimulation, with increased alpha-amylase activity and increased activity of hydrolytic enzyme sour phosphatase in modes with expressed biological effects.",
  "effect_direction": "benefit",
  "limitations": [
    "Study design not described in the abstract (e.g., controls, randomization, blinding).",
    "No exposure parameters provided (frequencies, field strengths/power characteristics, duration).",
    "No sample size or statistical details reported.",
    "Seed species/types not specified in the abstract."
  ],
  "evidence_strength": "insufficient",
  "confidence": 0.62,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "electromagnetic field",
    "low-frequency pulse EMF",
    "high-frequency EMF",
    "seeds",
    "germination",
    "biostimulation",
    "alpha-amylase",
    "gibberellin",
    "phosphatase",
    "plant growth"
  ],
  "suggested_hubs": []
}

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AI-extracted fields are generated from the abstract and metadata and may be incomplete or incorrect. This material is for informational purposes and is not medical advice.

Identifiers and source

DOI: Not supplied
PubMed: 15856999

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