The biological effect of extremely low frequency electromagnetic fields and vibrations on barley seed hydration and germination.

TheScientificWorldJournal · 2004 · Mixed · Very low evidence

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MixedVery low evidencePaper 5211

Study snapshot

PublicationTheScientificWorldJournal · 2004

Study typeanimal

Reported directionMixed

Evidence ratingVery low

Abstract

The changes of wet and dry weights and germination of barley seed in different periods of its swelling in nontreated (control), extremely low frequency electromagnetic fields (ELF EMF) )-treated, and extremely low frequency vibrations (ELFV)-treated cold (4 degrees C) and warm (20 degrees C) distilled water (DW) were studied. The metabolic-dependent seed hydration, dry weight dissolving, germination, and water binding in seed were modulated by preliminary EMF- and ELFV-treated DW. Frequency "windows" for the effect of EMF and ELFV on seed hydration, solubility, water binding in seed, and germination were discovered. These "windows" were different for EMF and ELFV, as well as in various phases of seed swelling. It is suggested that EMF-induced water structure modification has a different biological effect on the process of seed hydration, solubility, water binding in seed, and germination compared to ELFV.

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 typeanimal

Effect directionmixed

Populationbarley seed

Sample sizeNot supplied

ExposureELF

Evidence strengthVery lowConfidence: 66% · Peer reviewed: yes

Main findings

Compared with control, preliminary treatment of distilled water with extremely low frequency electromagnetic fields (ELF EMF) or extremely low frequency vibrations (ELFV) modulated metabolic-dependent seed hydration, dry weight dissolving, germination, and water binding in barley seeds. Frequency "windows" were reported for effects of EMF and ELFV on these outcomes, differing by exposure type and phase of seed swelling.

Outcomes measured

wet weight changes during swelling
dry weight changes during swelling
seed hydration
dry weight dissolving/solubility
germination
water binding in seed

Limitations

No exposure parameters (specific frequencies, field strengths, or vibration characteristics) reported in the abstract
No sample size or statistical details provided in the abstract
Study uses seeds (plant model), limiting direct relevance to human health

View raw extracted JSON

{
  "study_type": "animal",
  "exposure": {
    "band": "ELF",
    "source": "other",
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": null
  },
  "population": "barley seed",
  "sample_size": null,
  "outcomes": [
    "wet weight changes during swelling",
    "dry weight changes during swelling",
    "seed hydration",
    "dry weight dissolving/solubility",
    "germination",
    "water binding in seed"
  ],
  "main_findings": "Compared with control, preliminary treatment of distilled water with extremely low frequency electromagnetic fields (ELF EMF) or extremely low frequency vibrations (ELFV) modulated metabolic-dependent seed hydration, dry weight dissolving, germination, and water binding in barley seeds. Frequency \"windows\" were reported for effects of EMF and ELFV on these outcomes, differing by exposure type and phase of seed swelling.",
  "effect_direction": "mixed",
  "limitations": [
    "No exposure parameters (specific frequencies, field strengths, or vibration characteristics) reported in the abstract",
    "No sample size or statistical details provided in the abstract",
    "Study uses seeds (plant model), limiting direct relevance to human health"
  ],
  "evidence_strength": "very_low",
  "confidence": 0.66,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "extremely low frequency",
    "ELF EMF",
    "vibrations",
    "barley seed",
    "hydration",
    "germination",
    "frequency windows",
    "water binding",
    "distilled water"
  ],
  "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: 10.1100/tsw.2004.179
PubMed: 15517103

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