Primary root growth rate of Zea mays seedlings grown in an alternating magnetic field of different frequencies

Muraji, Masafumi; Asai, Toshihiro; Tatebe, Wataru

doi:10.1016/s0302-4598(97)00079-2

Cited by 51 publications

(30 citation statements)

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“…In addition, they showed that applying MF to broad bean during the growing season can increase the number of pods per plant and reduce the plant losses per unit area. Several studies have demonstrated the effectiveness of MFs on the root growth of various plants [14][15][16][17][18] . Similarly, Muraji et al (1992) observed that MF treatment increases the root growth of maize 18 .…”

Section: Magnetic Treatment Of Irrigation Watermentioning

confidence: 99%

“…In addition, magnetic treatment before sowing increases the number of pods per plant and decreased plant losses per unit area 12 . The root growth of various plant species can be enhanced using MWT technique [15][16][17][18][19] . Muraji et al reported that the roots of maize plants have the highest growth rate under an MF of 5 mT at 10 Hz…”

Section: Effects On Plant Growthmentioning

confidence: 99%

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Applications of Magnetic Water Technology in Farming and Agriculture Development: A Review of Recent Advances

Yadollahpour¹,

Rashidi²,

Kavakebian³

2014

Curr World Environ

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Magnetic water treatment (MWT) techniques have shown promising potentials in different areas specially agriculture. Safety, compatibility and simplicity, environmentally friendliness, low operating cost and not proven harmful effects are the main advantages of electromagnetic field (EMF) over conventional methods for water treatment. Magnetized or magnetic water (MW) possesses unique physical and chemical characteristics making it a multi-purpose compound with potential benefits in medical treatment, industrial as well as environmental applications. The unique physical and electrochemical characteristics of MW have attracted research interests to develop different devices and techniques in agricultural and environmental applications. Improvements of irrigation water quality and quantity, crop yields and quality, soil improvement and water saving are some of the reported benefits of MWT in agriculture. In addition, magnetic field treatments have shown beneficial effects on the germination of seeds, plant growth and development, the ripening and yield of field crops. The main challenge in applications of MW in agriculture is efficient integrating of irrigation components, designing suitable pumps compatible with technical and field requirements of magnetic MWT systems. The present study reviews the applications of MW in agricultures. The practical challenges in using MW as well as future perspective are discussed.

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Section: Magnetic Treatment Of Irrigation Watermentioning

confidence: 99%

Section: Effects On Plant Growthmentioning

confidence: 99%

Applications of Magnetic Water Technology in Farming and Agriculture Development: A Review of Recent Advances

Yadollahpour¹,

Rashidi²,

Kavakebian³

2014

Curr World Environ

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“…They include changes in the motility of diatoms (McLeod et al 1987), changes in the germination and seedling growth of radish (Smith et al 1993), stimulation of root growth in maize (Muraji et al 1998) and cress (Stenz et al 1998) and cytological changes with faster resin production and senescence in mature pine trees (Selaga and Selaga 1996). Effects are most apparent at low frequencies (below a few thousand Hz) and much of the research work has concentrated on the extremely low frequency range, especially around 60 Hz, which is the frequency of domestic electricity supplies in the USA.…”

Section: Phenomenologymentioning

confidence: 99%

Effects of Electrical and Electromagnetic Fields on Plants and Related Topics

Goldsworthy¹

2006

Plant Electrophysiology

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Anyone reading this book cannot fail to realize the importance of self-generated electric fields and currents in the energetics and control of metabolism in plants. We should therefore not be too surprised to find that externally applied fields also have effects. In this chapter, I will describe a few of the more significant findings from over a century of research and try to explain and sometimes reinterpret them in the light of more modern knowledge. The work is divided into three sections. Section 1 is on the non-polar effects of DC fields, where the effects are not related to the direction of the field. It ranges from responses to massive electric fields, such as those found in thunderstorms, to the effects of much weaker ones on the growth and differentiation of tissue cultures. Section 2 is on the polar effects of DC fields, where the direction of the response is related to the direction of the field and includes effects on polar growth and tropisms. Section 3 is on the effects of time-varying and alternating electromagnetic fields, where I will present evidence that a simple change in membrane stability can account for virtually all of the hitherto mysterious biological effects of weak electromagnetic radiation. Non-polar effects of DC electric fields High voltage natural fields and the rise and fall of electroculture PhenomenologyWork on the effects of electrical fields on plants goes back several centuries, but the first person to carry out large scale experiments was Karl Lemström, who was a Professor of Physics at Helsinki. He had paid several visits to the Arctic, and was surprised how green and healthy the vegetation looked, despite the low light and temperature. He wondered whether this might be due to the weak electric currents carried through the atmosphere by air ions from the aurora borealis. His suspicions were confirmed when he looked at

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“…Noran et al (1996) also confirmed the assumption that as a result of the influence of the magnetic field on solutes, the interaction between soil particles and salts dissolved in ordinary water did not resemble the interaction between the soil particles and the salts dissolved in magnetically treated water. Muraji et al (1998) discovered that there was an enhancement in root growth of maize (Zea mays) by exposing the maize seedling to 50 G magnetic fields at alternating frequencies of 40-160 Hz. However, there was a reduction in primary root growth of maize plants grown in a magnetic field alternating at 240-320 Hz.…”

Section: Introductionmentioning

confidence: 99%

Impact of Magnetic Treatment of Irrigation Water on the Growth and Yield of Tomato

Yusuf

Ogunlela

2015

Not Sci Biol

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This study was carried out to determine whether magnetic treatment of the irrigation water may actually enhance vegetative growth and yield of tomato. Three magnetic flux densities of 124, 319 and 719 G (treatments T1, T2 and T3) were used to treat the water and a control experiment (Tc) which was irrigated with non-magnetically treated water was also set up. The magnetic field was produced by an electromagnet that had a variable voltage unit varying the voltage from 4 to 12 V. The tomato were planted in buckets, kept in a transparent garden shed for 130 days and irrigated with magnetically treated water and non-magnetically treated water. A completely randomized design experimental layout was used in this study and each of the three treatments was replicated seven times. The results indicated that tomato crop irrigated with magnetically treated water grew faster than that of the non-magnetically treated water and the stem diameters were bigger than those of control. The heights of tomato plants (T1, T2 T3 and Tc) after 47 days were 560.0, 556.4, 588.6 and 469.3 mm respectively. The total yield after 130 days of survey for T1, T2 T3 and Tc were 892.1, 1075.8, 1045.7 and 637.7 g respectively. The percentage increment in yield from the plants treated with magnetically treated water varied from 39.9 to 68.7% compared to the yield from untreated water.

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Primary root growth rate of Zea mays seedlings grown in an alternating magnetic field of different frequencies

Cited by 51 publications

References 4 publications

Applications of Magnetic Water Technology in Farming and Agriculture Development: A Review of Recent Advances

Applications of Magnetic Water Technology in Farming and Agriculture Development: A Review of Recent Advances

Effects of Electrical and Electromagnetic Fields on Plants and Related Topics

Impact of Magnetic Treatment of Irrigation Water on the Growth and Yield of Tomato

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