Effect of magnetic treatment on seed germination of loblolly pine (Pinus taedaL.)

Yao, Wenfei; Shen, Yongbao

doi:10.1080/02827581.2015.1048717

Cited by 13 publications

(10 citation statements)

References 14 publications

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“…Several seed improvement methods have been employed to enhance seed vigor, including chemical treatments (chemicals, fungicides, and hormones) [Zehra et al, ; Zhao and Jiang, ] and physical treatments (ultrasonic scratching, electric field treatment, magnetic treatment, ion beam scratching, etc.) [Goussous et al, ; Xu et al, ; Shi et al, ; Yao and Shen, ]. Chemical methods are usually labor‐intensive and expensive due to large amounts of chemical consumption; even worse, residual chemicals on the seed coat surface could contribute to soil pollution.…”

Section: Introductionmentioning

confidence: 99%

“…As physical methods, ultrasonic scratching and ion beam scratching could improve seed vigor, and electric and/or magnetic treatments have also been confirmed to enhance seed vigor by influencing biochemical processes such as protein and enzyme activity [Moon and Chung, ]. However, these physical methods have limitations; for example, strong ultrasonic oscillation or ion beam collision might injure seed cells, thus increasing the number of destroyed seeds, and physical methods could lead to a higher possibility of a non‐uniform treatment [Goussous et al, ; Xu et al, ; Shi et al, ; Yao and Shen, ].…”

Section: Introductionmentioning

confidence: 99%

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Improvement of wheat seed vitality by dielectric barrier discharge plasma treatment

Qiao

Meng

et al. 2017

Bioelectromagnetics

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Influences of discharge voltage on wheat seed vitality were investigated in a dielectric barrier discharge (DBD) plasma system at atmospheric pressure and temperature. Six different treatments were designed, and their discharge voltages were 0.0, 9.0, 11.0, 13.0, 15.0, and 17.0 kV, respectively. Fifty seeds were exposed to the DBD plasma atmosphere with an air flow rate of 1.5 L min for 4 min in each treatment, and then the DBD plasma-treated seeds were prepared for germination in several Petri dishes. Each treatment was repeated three times. Germination indexes, growth indexes, surface topography, water uptake, permeability, and α-amylase activity were measured. DBD plasma treatment at appropriate energy levels had positive effects on wheat seed germination and seedling growth. The germination potential, germination index, and vigor index significantly increased by 31.4%, 13.9%, and 54.6% after DBD treatment at 11.0 kV, respectively, in comparison to the control. Shoot length, root length, dry weight, and fresh weight also significantly increased after the DBD plasma treatment. The seed coat was softened and cracks were observed, systematization of the protein was strengthened, and amount of free starch grain increased after the DBD plasma treatment. Water uptake, relative electroconductivity, soluble protein, and α-amylase activity of the wheat seed were also significantly improved after the DBD plasma treatment. Roles of active species and ultraviolet radiation generated in the DBD plasma process in wheat seed germination and seedling growth are proposed. Bioelectromagnetics. 39:120-131, 2018. © 2017 Wiley Periodicals, Inc.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Improvement of wheat seed vitality by dielectric barrier discharge plasma treatment

Qiao

Meng

et al. 2017

Bioelectromagnetics

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“…The theory that seed priming with SMF can alter different stages of plant growth and development has been supported by various reports. Previous studies have already confirmed the positive effects of SMF on seed germination and further phases of plant growth [Flórez et al, 2010; Shine et al, 2011; Radhakrishnan et al, 2012; Pietruszewski et al, 2013; Radhakrishnan and Ranjitha Kumari, 2013; Maffei, 2014; Jan et al, 2015; Yao and Shen, 2015; Novitskii et al, 2016; Kataria, 2017; Shine et al, 2017; Cheikh et al, 2018; Jyothi et al, 2018]. Moreover, there are some other reports indicating the supportive roles of magnetopriming on plant growth under stressful conditions through improving physiological and phytochemical characteristics [Javed et al, 2011; Anand et al, 2012; Radhakrishnan et al, 2012; Radhakrishnan and Ranjitha Kumari, 2013; Thomas et al, 2013; Roshandel and Azimian, 2015; Baghel et al, 2016, 2018, 2019; Rathod and Anand, 2016; Kataria et al, 2017; Baghel et al, 2018, 2019; Hasan et al, 2019; Kataria et al, 2019].…”

Section: Discussionmentioning

confidence: 85%

“…Yet, various reports have pointed out the effect of SMF on seed germination or further stages of plant growth [among many: Aladjadjiyan, 2002; Flórez et al, 2010; Shine et al, 2011; Pietruszewski et al, 2013; Maffei, 2014; Jan et al, 2015; Yao and Shen, 2015; Novitskii et al, 2016; Kataria, 2017; Shine et al, 2017; Cheikh et al, 2018; Jyothi et al, 2018]. In others, seed priming with electromagnetic treatment has been applied to reduce the injurious effects of abiotic stresses such as drought stress [Javed et al, 2011; Anand et al, 2012; Baghel et al, 2018; Hasan et al, 2019], salt stress [Radhakrishnan et al, 2012; Radhakrishnan and Ranjitha Kumari, 2013; Thomas et al, 2013; Baghel et al, 2016; Rathod and Anand, 2016; Baghel et al, 2019; Kataria et al, 2019], or UV stress [Kataria et al, 2017].…”

Section: Introductionmentioning

confidence: 99%

Ameliorative Effects of a Static Magnetic Field on Hyssop (Hyssopus officinalisL.) Growth and Phytochemical Traits Under Water Stress

Mohammadi

Roshandel

2020

Bioelectromagnetics

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The present study was carried out in order to evaluate the promoting effect of a static magnetic field (SMF) on drought tolerance and medicinal properties in Hyssopus officinalis. In the current work, the effect of seed priming with SMF (45, 90, 200, and 250 mT for 5 min) was investigated in 60-day-old hyssop (H. officinalis) plants that were irrigated every 8 days. The assessments consisted of total dry mass, membrane integrity, photosynthetic pigment concentrations, polyphenol content, antioxidant enzyme activities, and antioxidant capacity. Compared with exclusively water stress, magnetopriming, particularly at 200 mT, significantly altered these parameters in the grown plants. At this intensity, the level of total dry mass, total chlorophyll, and polyphenol content increased by 94%, 2.5-and 7.7-fold, respectively. Also, the level of electrolyte leakage and malondialdehyde decreased by 35% and 33%. The reducing power, DPPH (1,1-diphenyl-2-picrylhydrozyl), and superoxide anion-scavenging activities were highly augmented as well. Magnetopriming at 200 mT increased catalase (+92%) and ascorbate peroxidase (+2.3-fold) activities. However, the highest activity of guaiacol peroxidase was recorded at 90 mT. Generally, the present study illustrated the positive effect of magnetopriming (200 mT) on improvement of drought tolerance in H. officinalis through protection of cellular membrane integrity, maintenance of photosynthetic pigment content, and alternation of antioxidant enzyme activities. Furthermore, the data showed this treatment (200 mT) not only had no negative effect on medicinal properties of H. officinalis, but also improved it via increasing total phenolic content and antioxidant capacity. Bioelectromagnetics. 2020;41:403-412.

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“…Same results with reduced MGT values where obtained for Pinus taeda L. at 150 mT for 60 minutes (Yao and Shen, 2015). In different experimental plots, in order to observe the seed morphological movements under the influence of magnetic fields, seeds where glued with non-toxic adhesive to filter paper with their long axes vertical.…”

Section: Introductionmentioning

confidence: 89%

High Frequency Pulsatile Electromagnetic Fields and Ultrasound Pulsatile Fields Impact on Germination Dynamic at Ocimum basilicum L. and O. basilicum var. purpurascens Benth., Observed with Open Source Software’s

Onac

Singureanu

Moldovan

et al. 2016

Not Bot Hort Agrobot Cluj

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Basil (Ocimum sp.) is generally known as "king of herbs" due to its pharmaceutical and culinary properties. Even though Ocimum sp. are considered to have fast germination velocity index (GVI), short mean germination time (MGT) and increased seedling vigor index (SVI) values, their experimental monitoring is usually done with specialized software's that are expensive. Low cost scientific solutions are keen on open source software germination protocols. For observing the accuracy of open source, C.A.D. softwares were used for Ocimum sp. seeds which were submitted to high frequency pulsatile electromagnetic fields (300 impulses/3 peak penetrance -293 W) and ultrasound pulsatile fields (1/2 pulses by 0.5 W/cm 2 ). All sequence images where taken using a positive/negative photo filter enhancing the differences in seed development. At the end of the experiment, all images where transformed into vector formats (dwg). On the dwg extension, selective free plug-ins such as Face Centroid and Area Properties helped to collect data like seed development on X/Y scale, area, perimeter, no. of germinated seeds, length of seedling root, hypocotyl length. Mean germination time (MGT) was in agreement with the accepted theory of seed germination that enounced a diametric position between values of GVI and MGT, meaning that all the experimental variants with high values of GVI recorded low values of MGT. All the experimental variants influenced by physical stimulants recorded improved contents of therapeutical terpenes.

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Effect of magnetic treatment on seed germination of loblolly pine (Pinus taedaL.)

Cited by 13 publications

References 14 publications

Improvement of wheat seed vitality by dielectric barrier discharge plasma treatment

Improvement of wheat seed vitality by dielectric barrier discharge plasma treatment

Ameliorative Effects of a Static Magnetic Field on Hyssop (Hyssopus officinalisL.) Growth and Phytochemical Traits Under Water Stress

<p>High Frequency Pulsatile Electromagnetic Fields and Ultrasound Pulsatile Fields Impact on Germination Dynamic at <i>Ocimum basilicum</i> L. and <i>O. basilicum</i> var. <i>purpurascens</i> Benth., Observed with Open Source Software’s</p>

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