Abstract
In recent years, many research studies have been conducted on the effects of magnetic field on plants. But certain mechanisms regarding magnetic influences have not been defined yet. In this study, effects of magnetic fields (MF) on the growth parameters and enzyme activities of Helianthus annuus L. were investigated. Sterilized seeds in sterile conditions were exposed to 0, 0.5, 1 and 1.5 mT of MF. One day after the treatments percentage of seed germination was increased at 0.5 mT. Different MF densities had no significant effects on root length and fresh weight of leaves. The highest level of shoot length was gained at 1 mT. In this treatment the activity of auxin oxidase was significantly decreased compared with that of the control samples. The activity of the catalase and peroxidase were decreased by MF. The minimum level of protein content and catalase and peroxidase activity were observed in the samples exposed to 1 mT of MF while there were no significant differences in the ascorbate peroxidase activity of different treatments. MF caused a reduction in chlorophyll a, b in all treatments compared to the control. The Results confirmed that the intensity of the MF had different effects on the growth parameters and enzyme activity.
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Claims 9
Claim · model-written summary
Germination percentage rose at 0.5 mT.
- Taxon
- Helianthus annuus L.
Helianthus annuust0 - Treatment
- 0.5 mTe0
- Outcome
- percentage of seed germinatione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“One day after the treatments percentage of seed germination was increased at 0.5 mT.”
t0“HELIANTHUS ANNUUS L.”
Claim · model-written summary
Magnetic field densities had no significant effects on root length and leaf fresh weight.
- Taxon
- Helianthus annuus L.Helianthus annuust0
- Treatment
- Different MF densitiese0
- Outcome
- root length and fresh weight of leavese0
- Direction
- no significant effectse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Different MF densities had no significant effects on root length and fresh weight of leaves.”
t0“HELIANTHUS ANNUUS L.”
Claim · model-written summary
Shoot length was highest at 1 mT.
- Taxon
- Helianthus annuus L.Helianthus annuust0
- Treatment
- 1 mTe0
- Outcome
- shoot lengthe0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest level of shoot length was gained at 1 mT.”
t0“HELIANTHUS ANNUUS L.”
Claim · model-written summary
Auxin oxidase activity was significantly lower at 1 mT than control.
- Taxon
- Helianthus annuus L.Helianthus annuust0
- Treatment
- 1 mTe1
- Outcome
- activity of auxin oxidasee0
- Direction
- decreasede0
- Comparator
- control samplese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In this treatment the activity of auxin oxidase was significantly decreased compared with that of the control samples.”
e1“The highest level of shoot length was gained at 1 mT.”
t0“HELIANTHUS ANNUUS L.”
Claim · model-written summary
Magnetic fields decreased catalase and peroxidase activities.
- Taxon
- Helianthus annuus L.Helianthus annuust0
- Treatment
- MFe0
- Outcome
- activity of the catalase and peroxidasee0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The activity of the catalase and peroxidase were decreased by MF.”
t0“HELIANTHUS ANNUUS L.”
Claim · model-written summary
Protein content was lowest at 1 mT.
- Taxon
- Helianthus annuus L.Helianthus annuust0
- Treatment
- 1 mT of MFe0
- Outcome
- protein contente0
- Direction
- minimume0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The minimum level of protein content and catalase and peroxidase activity were observed in the samples exposed to 1 mT of MF”
t0“HELIANTHUS ANNUUS L.”
Claim · model-written summary
Catalase and peroxidase activities were lowest at 1 mT.
- Taxon
- Helianthus annuus L.Helianthus annuust0
- Treatment
- 1 mT of MFe0
- Outcome
- catalase and peroxidase activitye0
- Direction
- minimume0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The minimum level of protein content and catalase and peroxidase activity were observed in the samples exposed to 1 mT of MF”
t0“HELIANTHUS ANNUUS L.”
Claim · model-written summary
Ascorbate peroxidase activity did not differ significantly among treatments.
- Taxon
- Helianthus annuus L.Helianthus annuust0
- Treatment
- different treatmentse0
- Outcome
- ascorbate peroxidase activitye0
- Direction
- no significant differencese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there were no significant differences in the ascorbate peroxidase activity of different treatments.”
t0“HELIANTHUS ANNUUS L.”
Claim · model-written summary
Magnetic field reduced chlorophyll a and b under all treatments versus control.
- Taxon
- Helianthus annuus L.Helianthus annuust0
- Treatment
- MFe0
- Outcome
- chlorophyll a, be0
- Direction
- reductione0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MF caused a reduction in chlorophyll a, b in all treatments compared to the control.”
t0“HELIANTHUS ANNUUS L.”
The same questions in other papers
magnetic · physiology: pigments · Helianthus annuus (common sunflower)Results differ
2 in the opposite direction
- positive
- positive
magnetic · growth · Helianthus annuus (common sunflower)Results differ
1 paper in the same direction as this paper · 10 in the opposite direction
- positive
- positive
- positive
8 papers more in this group
See all 12 papers →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.