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Invisibledurian_2008
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Registered: 04/02/08
Posts: 17,583
Loc: Raccoon City
Electromagnetic seed treatment increases germination
    #13014202 - 08/06/10 07:24 PM (13 years, 7 months ago)

http://www.emf-portal.org/viewer.php?aid=10311&l=e
Quote:

Medical/biological Study (experimental study)
Electromagnetic seed treatment increases germination of Koelreuteria paniculata Laxm. med./biol.
By: Maronek DM
Published in: HortScience 1975; 10 : 227 - 228 ( open external web page Journal web site )

Aim of study (according to author)
To study the effects of an electromagnetic field on seed dormancy and germination of golden-rain tree.
Background/further details:
Golden-rain tree seed has an impermeable testa which can be overcome by acid scarification and requires cold stratification to overcome embryo dormancy. The following seed treatments were performed: 1) control treatment of acid scarification followed by 84 days of cold stratification; 2) either acid scarification (A), cold stratification for 21, 42, 63, or 84 days (B) or electromagnetic field exposure (C) alone; 3) electromagnetic field treatment applied either before or after an A or B treatment; 4) all possible combinations of A, B, and C. Each treatment was replicated five times with 20 seeds per test.

Endpoint

    * effects on plants (germination and dormancy)

Exposure
General category: magnetic field

Field characteristics Parameters
frequency not specified
exposure duration: continuous for 4.3 s magnetic flux density: 10 mT

FIELD View further expo parameters

Exposed system:
plant (species/strain): golden rain tree (Koelreuteria paniculata Laxm)

Methods
Endpoint/Measurement parameters/Methodology

    * effects on plants (germination and dormancy; evaluation of germinated seed (seedling length at least 2 cm))

investigated material: germinated seed

time of investigation: after exposure

Main outcome of study (according to author)
Germination of more than 10% occurred only when scarification was followed by cold stratification as expected. Seed germination following scarification was directly proportional to time in cold stratification. Magnetic field treatment applied after both acid scarification and cold stratification did not significantly improve germination as compared to the control (AB). When the electromagnetic field was applied between scarification and 21, 42, 63, or 84 days of cold stratification, germination increased although the effect was significant only at the last two periods. After 84 days of cold stratification, germination was 97% with the electromagnetic treatment as compared to 56% obtained with the control (AB). Seed exposure to the electromagnetic field prior to the conventional AB sequence inhibited germination.
The author concludes that an electromagnetic field treatment of 100 Gauss will partially substitute for cold stratification and significantly increase seed germination of golden-rain tree. These findings suggest that seed exposure to an electromagnetic field increases germination through an unknown effect on the cold-requiring reaction.

(Study character: medical/biological study, experimental study, full/main study)

Study funded by

    * not stated

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InvisibleAuxin
Stranger

Registered: 09/03/09
Posts: 433
Loc: USA
Re: Electromagnetic seed treatment increases germination [Re: durian_2008]
    #13014517 - 08/06/10 08:39 PM (13 years, 7 months ago)

Theres also a czechoslovakian paper on this topic for tobacco seed, showing it doesnt just work for species that need cold to germinate.
Pretty cool


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The Nook

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