Hello, huyetma-ga!
It is not often that one or two resources provide an effective answer
to a question, but in this case, the following references provide an
overview of an experiment involving the effect of electromagnetic
fields on the growth of bean sprouts, the method of the experiment,
and the conclusions. By using your own parameters, you can compare
your results with the conclusions in the following reference.
==
"The Effect of Electric Field Intensity on Bean Sprout Growing." P.
Kiatgamjorn, V.Tarateeraseth, W. Khan-ngern and S.Nitta. Research
Center for Communications and Information Technology, Faculty of
engineering, King Mongkut?s Institute of Technology Ladkrabang Bangkok
10520, Thailand.
http://www.telecomlab.gr/2002/oct/rhodes/pap3rs/N%20061%20_p461%20-%20p467_.pdf
Abstract:
"The effect of the electric field intensity on the growth of the bean
sprouts are presented. The study is focused on the growing rate of the
height of the stems and the length of the roots. The bean sprouts are
experimented under the condition among without electric field, with
electric field at 10 kV/m and 25 kV/m, respectively. The growing rate
of bean sprouts have been observed every day for 5 days. The
experimental results indicate that the bean sprouts under high
electric field intensity have a better growth comparison to the low
electric field intensity based on statistical analysis."
Summary:
"The effect of electric field intensity on the growth of bean sprouts
are presented. The comparison among without electric field, with
electric field at 10 kV/m and 25 kV/m are investigated and
experimented. The temperature and relative humidity are controlled at
28°C and 65%, respectively. The height of stems and the length of
roots have been considered in the experiment based on statistic
approach. The experimental results show that the mean for 5 days of
the height of stems and the length of roots are effected by electric
filed
intensity. However, some period, the height of stems in with electric
field intensity at 10kV/m is lowest. The height of stems and the
length of roots in with electric field intensity at 25 kV/m are
highest and longest. In further work, an effect of various period
times for apply electric field intensity on the growth of bean sprouts
are investigated."
For an example on how you might set up your own experiment, see:
"Figure 1 - Flowchart of the experimental setup."
* Seeds have been chosen
* Seeds are steeped in the water for 6 hours
* Seeds of plants are planted in plastic boxes
Plastic boxes are put in without electric field
Plastic boxes are put in electric field at 10 kV/m
Plastic boxes are put in electric field at 25 kV/m
* The height of stems and the length of roots are measured every day last for
5 days
* Statistic approach is done.
==
The following write-up of the same experiment has some additional pictures:
"The Effect of Electric Field on Bean Sprout Growing." P.
Kiatgamjorn*, W. Khan-ngern* and S. Nitta** Research Center for
Communications and Information Technology, Faculty of engineering,
King Mongkut?s Institute of Technology Ladkrabang Bangkok 10520,
Thailand.
http://www.kmitl.ac.th/~emc/papers/11.pdf
==
High School Experiments involving Magnetic Fields and Plant Growth:
See "Does a Magnetic Field Affect Plant Growth?" California State Science Fair.
http://www.usc.edu/CSSF/Current/Projects/J1640.pdf
See the following discussion - See "Topic: Effects of magnetic fields
on plant growth." http://www.rooting-hormones.com/discuss.htm#magnetic%20field
==
ScienceProject.com might have some insight into an experiment you can
replicate. Under the Senior Biology Projects, there is a reference to
a project on "The effects of magnetic fields on plant growth." You can
become a trial member of the site for $10, but there is no guarantee
that additional materials will be available for that specific project.
http://www.scienceproject.com/
Student Membership
http://www.scienceproject.com/membership/memfee.html
"If the project that you select to view the details, has not been
selected by any other member before, it will take about 2 weeks for
your project advisor to prepare a project guide for that project. *
Project details usually include experiment design, but will not have
experiment results. All students need to perform their own experiments
and get the results."
==
Additional abstract of interest:
"Growth of Green Onions in a Weak Permanent Magnetic Field." Yu. I.
Novitsky , G. V. Novitskaya, T. K. Kocheshkova1, G. A. Nechiporenko1
and M. V. Dobrovol'skii. Russian Journal of Plant Physiology. Issue:
Volume 48, Number 6. November 2001
http://www.springerlink.com/(1j24pjmm5m2z01yjcqs02m45)/app/home/contribution.asp?referrer=parent&backto=issue,1,20;journal,24,30;linkingpublicationresults,1:106542,1
==
I hope these references provide some useful information so that you
can conduct an experiment of your own. If you need additional
clarification, please don't hesitate to ask.
Sincerely,
umiat
Search Stragegy
magnetic field intensity AND bean sprouts
magnetic field intensity experiments AND plant growth
effect of magnetic field on bean sprouts OR plants |
Clarification of Answer by
umiat-ga
on
04 Nov 2005 13:33 PST
You might want to review the following references as well:
"The Effects of Magnetic Pole Reversals on Radish Plants," by Samuel
C. Spevack." California Science Fair Project. 2004
http://www.usc.edu/CSSF/History/2004/Projects/J1425.pdf
=
"Effects of a Magnetic Field on the Germination of Plants." Journal of
Applied Physics, April 1999.
http://scholar.google.com/scholar?hl=en&lr=&q=cache:rE47zPG4vIwJ:www.appchem.t.u-tokyo.ac.jp/appchem/labs/kitazawa/magnet/res/hirota-plant.pdf+author:%22Hirota%22+intitle:%22Effects+of+a+magnetic+field+on+the+germination+of+plants%22
=
Another article abstract:
"EFFECT OF MAGNETIC FIELD ON GERMINATION AND PLANT GROWTH," by K.
Namba, A. Sasao, S. Shibusawa.
http://www.actahort.org/books/399/399_15.htm
"This paper describes the effect of alternating magnetic fields on
plant germination and growth. Experiments were conducted utilizing
various frequencies and two states of polarity. Electromagnetic coils
were used to generate the fields and 'Komatsuna' plants were chosen as
subjects. The frequency was varied from 1 to 1000 Hz, at a fixed
intensity of 4 or 5 Gauss. The magnetic polarity was controlled by
reversing the current direction. Measured parameters were germination
rate, growth rate and yield of the plant."
"The results indicated that magnetic fields do influence plant growth
and germination, and that frequency of the field is a more important
factor in germination rates than polarity. Maximum germination rates,
which were 20 % higher than control rates, were obtained at around 10
Hz. An alternating magnetic field of 10 Hz was shown to have a
statistically significant effect on plant growth, as measured by leaf
area. The difference in growth rate between treated and control plants
decreased after the field was removed."
=
Question and Answer from MadSci Network
http://www.madsci.org/posts/archives/jan2000/947862757.Bt.r.html
Read - "Re: Would placing seeds in a magnetic field before planting
affect their germination and growth?
=
Also read "What Is The Effect Of Magnetism On The Growth Of Plants?,"
by Dana Blount. The National Student Research Center. E-Journal of
Student Research: Science. Volume 3, Number 5, April, 1995
http://www.youth.net/nsrc/sci/sci.013.html
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