Pulsed magnetic field: A contemporary approach offers to enhance plant growth and yield of soybean

Radhakrishnan, Ramalingam; Kumari, B. D. Ranjitha

doi:10.1016/j.plaphy.2011.10.017

Cited by 131 publications

(92 citation statements)

References 36 publications

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“…The best effect on yield was obtained by the use of PEMF at 24 Hz frequency, resulting in yield increase of 239.91 kg. That pretreatment of PEMF plays important roles in improvement of crop productivity of soybean through the enhancement of protein, mineral accumulation and enzyme activities, which leads to increase yield (Radhakrishnan, Kumari, 2012). Seed treatment with lower frequencies resulted in yield increase of 199.82 kg.…”

Section: Resultsmentioning

confidence: 99%

Pulsed electromagnetic field – a cultivation practice used to increase soybean seed germination and yield

Đukić

Miladinov

Dozet

et al. 2017

Zemdirbyste-Agriculture

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The aim of the research was to test the effect of pulsed electromagnetic field (PEMF) on soybean seed germination and yield depending on specific field conditions, years of study, exposure duration and frequency. Field trial was conducted on an experimental field of Institute of Field and Vegetable Crops in Novi Sad, Serbia in 2010-2013. Seeds of the soybean (Glycine hispida (Moench)) medium-early cultivar ʻValjevkaʼ were exposed to the PEMF therapy using the impulse generator and strip. Low-frequency (16, 24, 30 and 72 Hz) PEMF was used in the duration of 0, 30, 60 and 90 minutes. Research results indicate that this method can increase seed germination up to 8.00% and yield by 960.5 kg, or 21% in field conditions, which is a significant increase and a solid basis to introduce this practice, primarily in organic production with a very limited use of seed treatment preparations. However, the practice can have an inhibitory effect under an unfavourable combination of exposure duration and frequency. The obtained data were processed using the analysis of variance of three-factorial trials considering all years of study. Due to different meteorological conditions in the study years, analysis of variance was conducted for each year of study and correlations between the tested traits were examined.

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Section: Resultsmentioning

confidence: 99%

Pulsed electromagnetic field – a cultivation practice used to increase soybean seed germination and yield

Đukić

Miladinov

Dozet

et al. 2017

Zemdirbyste-Agriculture

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“…Magnetic field (MF) treatments have shown to enhance seed germination, plant vigor and productivity (Vashisth and Nagarajan, 2010;Radhakrishnan and Kumari, 2012), and delay the senescence process in plant organs (Piacentini et al, 2001). Such effects may be due to promotion of gene expression, protein biosynthesis, enzymes activity, cell reproduction and overall metabolism of plant (Stange et al, 2002;Atak et al, 2007;Vashisth and Nagarajan, 2010).…”

Section: Introductionmentioning

confidence: 99%

“…Such effects may be due to promotion of gene expression, protein biosynthesis, enzymes activity, cell reproduction and overall metabolism of plant (Stange et al, 2002;Atak et al, 2007;Vashisth and Nagarajan, 2010). Rapid germination and vigor of seedlings is linked with enhancement of activities of α-amylase, dehydrogenase and protease in seeds following MF exposure (Vashisth and Nagarajan, 2010;Radhakrishnan and Kumari, 2012). Seeds that have been treated by MF for a short time generate more extensive root system as well as more vigorous shoot compared to untreated seeds (Florez et al, 2007;Vashisth and Nagarajan, 2010).…”

Section: Introductionmentioning

confidence: 99%

Inducing salt tolerance in sweet corn by magnetic priming

Karimi

Eshghi

Karimi

et al. 2017

AAS

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This study evaluates seed germination and growth of sweet corn under NaCl stress (0, 50, and 100 mM), after exposing the seeds to weak (15 mT) or strong (150 mT) magnetic fields (MF) for different durations (0, 6, 12, and 24 hours). Salinity reduced seed germination and plant growth. MF treatments enhanced rate and percentage of germination and improved plant growth, regardless of salinity. Higher germination rate was obtained by the stronger MF, however, the seedling were more vigorous after priming with 15 mT MF. Proline accumulation was observed in parallel with the loss of plant water content under 100 mM NaCl stress. MF prevented proline accumulation by improving water absorption. Positive correlation between H 2 O 2 accumulation and membrane thermostability (MTI) was found after MF treatments, which revealed that MF primed the plant for salinity by H 2 O 2 signaling. However, over-accumulation of H 2 O 2 after prolonged MF exposure adversely affected MTI under severe salt stress. In conclusion, magnetic priming for 6 hours was suggested for enhancing germination and growth of sweet corn under salt stress. IZVLEČEK INDUKCIJA TOLERANCE NA SOL SLADKE KORUZE S PREDHODNIM OBRAVNAVANJEM SEMEN Z MAGNETNIM POLJEMV raziskavi sta bili ovrednoteni kalitev in rast sladke koruze v razmerah solnega stresa (NaCl; 0, 50, in 100 mM), po izpostavitvi semen šibkemu (15 mT) in močnemu (150 mT) magnetnemu polju (MF) v trajanju 0, 6, 12, in 24 ur. Slanost je zmanjšala kalitev semen in rast rastlin. Obravnavanje z magnetnim poljem je povečalo hitrost in odstotek kalitve ter izboljšalo rast rastlin, ne glede na slanost. Kalitev je bila značilno večja pri obravnavanju z močnejšim magnetnim poljem, kalice so bile bolj vitalne pri obravnavanju z 15 mT MF. Akumulacija prolina je bila opažena sočasno z izgubo vsebnosti vode v razmerah močnega NaCl stresa. Obravnavanje z magnetnim poljem je izboljšalo absorbcijo vode in preprečilo akumulacijo prolina. Pozitivna korelacija med akumulacijo H 2 O 2 in termostabilnostjo membran (MTI), ki je bila opažena po obravnavanju z MF je pokazala, da so bile tako obravnavane rastline odpornejše na slanost preko H 2 O 2 signalizacije. Kljub temu je prekomerna akumulacija H 2 O 2 , kot posledica podaljšane izpostavitve MF, negativno vplivala na MTI v razmerah solnega stresa. Zaključimo lahko, da predobravnavanje semen z magnetnim poljem za 6 ur pospeši nihovo kalitev in rast rastlin v razmerah solnega stresa. Ključne

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“…Beneficial effects of static magnetic field (SMF) in terms of increased vigour of seedlings have been reported in many crops (Florez et al 2007;Shine et al 2011). The stimulatory response of pulsed magnetic field (PMF) seed treatment on plant growth and development has also been reported in soybean (Radhakrishnan and Ranjitha Kumari 2012). In our previous study, static magnetic field delayed ageing in soybean under accelerated ageing and maintained its quality (Kumar et al 2014).…”

Section: Introductionmentioning

confidence: 85%

Pulsed magnetic field improves seed quality of aged green pea seeds by homeostasis of free radical content

et al. 2016

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To elucidate the mechanism responsible for magnetic field induced seed invigoration in aged seeds an experiment was conducted on six year old garden pea seeds stored under controlled (20°C and 40% RH) condition. Aged seeds were magnetoprimed by exposing to pulsed magnetic field (PMF) of 100 mT for 1 h in three pulsed modes. The 6 min on and off PMF showed significant improvement in germination (7.6%) and vigor (84.8%) over aged seeds. Superoxide and hydrogen peroxide production increased in germinating primed seeds by 27 and 52%, respectively, over aged seeds. Nicotinamide adenine dinucleotide (reduced) (NADH) peroxidase and superoxide dismutase involved in generation of hydrogen peroxide showed increased activity in PMF primed seeds. Increase in catalase, ascorbate peroxidase and glutathione reductase activity after 36 h of imbibition in primed seeds demonstrated its involvement in seed recovery during magnetopriming. An increase in total antioxidants also helped in maintaining the level of free radicals for promoting germination of magnetoprimed seeds. A 44% increase in level of protein carbonyls after 36 h indicated involvement of protein oxidation for counteracting and/or utilizing the production of ROS and faster mobilization of reserve proteins. Higher production of free radicals in primed seeds did not cause lipid peroxidation as malondialdehyde content was low. Lipoxygenase was involved in the germination associated events as the magnitude of activity was higher in primed aged seeds compared to aged seeds. Our study elucidated that PMF mediated improvement in seed quality of aged pea seeds was facilitated by fine tuning of free radicals by the antioxidant defense system and protein oxidation.

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Pulsed magnetic field: A contemporary approach offers to enhance plant growth and yield of soybean

Cited by 131 publications

References 36 publications

Pulsed electromagnetic field – a cultivation practice used to increase soybean seed germination and yield

Pulsed electromagnetic field – a cultivation practice used to increase soybean seed germination and yield

Inducing salt tolerance in sweet corn by magnetic priming

Pulsed magnetic field improves seed quality of aged green pea seeds by homeostasis of free radical content

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