To study the effects of pre-sowing magnetic field treatments on germination, growth and yield of okra.
Exposure | Parameters |
---|---|
Exposure 1:
50 Hz
Exposure duration:
continuous for 3 min or 11 min
|
|
Frequency | 50 Hz |
---|---|
Type | |
Waveform | |
Exposure duration | continuous for 3 min or 11 min |
Exposure source |
|
---|---|
Setup | four cylindrical coils, each consisting of 4000 turns of 0.41 mm enameled copper wire wound on an iron bar; each pair of coils spaced 10 cm apart; both pairs positioned one above the other; coils connected in series; seeds placed in 10 cm x 3.5 cm rectangular glass dishes which were positioned in the gap between the coils |
Sham exposure | A sham exposure was conducted. |
Measurand | Value | Type | Method | Mass | Remarks |
---|---|---|---|---|---|
magnetic flux density | 99 mT | - | measured | - | - |
The data showed that the magnetic field pre-treatment significantly increased the germination percentage, number of flowers per plant, leaf area, plant height at maturity as well as the number of fruits, pod mass and number of seeds per plant. The magnetic field exposure for 11 minutes showed better results than the sham exposed control or the exposure for 3 minutes.
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