Abstract
TURKER M., TEMIRCI C., BATTAL P. & EREZ M. E. 2007. The effects of an artificial and static magnetic field on plant growth, chlorophyll and phytohormone levels in maize and sunflower plants. - Phyton (Horn, Austria) 46 (2): 271-284, 5 figures. -English with German summary. In the present study the effects of a continuous static magnetic field (SMF) on growth and concentration of phytohormones and chlorophylls were investigated in maize and sunflower plants. SMF was applied in two directions; parallel to gravity force (field-down) and anti-parallel (field-up). Chlorophyll concentrations decreased in maize plants, but increased in sunflower in SMF of either direction. Root dry weight decreased in maize and increased in sunflower plants. The changes of dry weight in stem and leaf were not significant (p≥0.05). The root length decreased in both plant species. Leaf and stem length increased in maize plants in SMF of either direction. Leaf length did not change in sunflower, whereas stem length rose in field-down application of SMF Concentrations of gibberellic acid-equivalents (GAs), indole-3-acetic acid (IAA) and trans-zeatin (t-Z) increased in sunflower plants under field-up application of SMF, whereas they decreased in SMF of the opposite direction. The concentration of phytohormones decreased in maize plants in SMF of either direction.
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Claims 12
Claim · model-written summary
maize: Chlorophyll concentrations decreased under a static magnetic field.
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chlorophyll concentrations decreased in maize plants, but increased in sunflower in SMF of either direction.”
t0“maize and sunflower plants”
e1“SMF was applied in two directions; parallel to gravity force (field-down) and anti-parallel (field-up).”
Claim · model-written summary
sunflower: Chlorophyll concentrations increased under a static magnetic field.
- Taxon
- sunflower
Helianthus annuust0 - Treatment
- SMFe1
- Outcome
- Chlorophyll concentrationse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chlorophyll concentrations decreased in maize plants, but increased in sunflower in SMF of either direction.”
t0“maize and sunflower plants”
e1“SMF was applied in two directions; parallel to gravity force (field-down) and anti-parallel (field-up).”
Claim · model-written summary
maize: Root dry weight decreased under a static magnetic field.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Root dry weight decreased in maize and increased in sunflower plants.”
t0“maize and sunflower plants”
e1“SMF was applied in two directions; parallel to gravity force (field-down) and anti-parallel (field-up).”
Claim · model-written summary
sunflower: Root dry weight increased under a static magnetic field.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- SMFe1
- Outcome
- Root dry weighte0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Root dry weight decreased in maize and increased in sunflower plants.”
t0“maize and sunflower plants”
e1“SMF was applied in two directions; parallel to gravity force (field-down) and anti-parallel (field-up).”
Claim · model-written summary
maize: root length decreased under a static magnetic field.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The root length decreased in both plant species.”
t0“maize and sunflower plants”
e1“SMF was applied in two directions; parallel to gravity force (field-down) and anti-parallel (field-up).”
Claim · model-written summary
sunflower: root length decreased under a static magnetic field.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- SMFe1
- Outcome
- root lengthe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The root length decreased in both plant species.”
t0“maize and sunflower plants”
e1“SMF was applied in two directions; parallel to gravity force (field-down) and anti-parallel (field-up).”
Claim · model-written summary
maize: Leaf and stem length increased under a static magnetic field.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaf and stem length increased in maize plants in SMF of either direction.”
t0“maize and sunflower plants”
e1“SMF was applied in two directions; parallel to gravity force (field-down) and anti-parallel (field-up).”
Claim · model-written summary
sunflower: Leaf length did not change under a static magnetic field.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- SMFe1
- Outcome
- Leaf lengthe0
- Direction
- did not changee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaf length did not change in sunflower, whereas stem length rose in field-down application of SMF”
t0“maize and sunflower plants”
e1“SMF was applied in two directions; parallel to gravity force (field-down) and anti-parallel (field-up).”
Claim · model-written summary
sunflower: stem length rose under a static magnetic field.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- SMFe1
- Outcome
- stem lengthe0
- Direction
- rosee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaf length did not change in sunflower, whereas stem length rose in field-down application of SMF”
t0“maize and sunflower plants”
e1“SMF was applied in two directions; parallel to gravity force (field-down) and anti-parallel (field-up).”
Claim · model-written summary
sunflower: Concentrations of gibberellic acid-equivalents (GAs), indole-3-acetic acid (IAA) and trans-zeatin (t-Z) increased under a static magnetic field.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- SMFe1
- Outcome
- Concentrations of gibberellic acid-equivalents (GAs), indole-3-acetic acid (IAA) and trans-zeatin (t-Z)e0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Concentrations of gibberellic acid-equivalents (GAs), indole-3-acetic acid (IAA) and trans-zeatin (t-Z) increased in sunflower plants under field-up application of SMF, whereas they decreased in SMF of the opposite direction.”
t0“maize and sunflower plants”
e1“SMF was applied in two directions; parallel to gravity force (field-down) and anti-parallel (field-up).”
Claim · model-written summary
sunflower: Concentrations of gibberellic acid-equivalents (GAs), indole-3-acetic acid (IAA) and trans-zeatin (t-Z) decreased under a static magnetic field.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- SMFe1
- Outcome
- Concentrations of gibberellic acid-equivalents (GAs), indole-3-acetic acid (IAA) and trans-zeatin (t-Z)e0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Concentrations of gibberellic acid-equivalents (GAs), indole-3-acetic acid (IAA) and trans-zeatin (t-Z) increased in sunflower plants under field-up application of SMF, whereas they decreased in SMF of the opposite direction.”
t0“maize and sunflower plants”
e1“SMF was applied in two directions; parallel to gravity force (field-down) and anti-parallel (field-up).”
Claim · model-written summary
maize: concentration of phytohormones decreased under a static magnetic field.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The concentration of phytohormones decreased in maize plants in SMF of either direction.”
t0“maize and sunflower plants”
e1“SMF was applied in two directions; parallel to gravity force (field-down) and anti-parallel (field-up).”
The same questions in other papers
magnetic · physiology: pigments · Helianthus annuus (common sunflower)Results differ
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
magnetic · physiology: pigments · Zea mays (maize)Results differ
1 paper in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- negative
magnetic · growth · Helianthus annuus (common sunflower)Results differ
9 papers in the same direction as this paper · 2 in the opposite direction
- no effect
- no effect
- positive
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See all 12 papers →magnetic · growth · Zea mays (maize)Positive and negative results
8 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
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6 papers more in this group
See all 10 papers →magnetic · physiology: hormones · Helianthus annuus (common sunflower)Results agree
1 paper in the same direction as this paper
- positive
magnetic · physiology: hormones · Zea mays (maize)Results agree
1 paper in the same direction as this paper
- negative
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.