Effects of Low-Power Microwave Fields on Seed Germination and Growth Rate

Ragha, Lakshmappa; Mishra, Seema; Ramachandran, V.; Bhatia, M. S.

doi:10.4236/jemaa.2011.35027

Cited by 48 publications

(31 citation statements)

References 9 publications

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“…The GR of tartary buckwheat seeds signifi cantly increased (P<0.05) as the microwave power increased but was signifi cantly reduced when the exposure time was increased from 10 s to 30 s at higher irradiation power (>600 W) ( Figure 1). These results were in accordance with previous studies in wheat [Ragha et al, 2011;Gaurilcikiene et al, 2013]. When the exposure time was extended, there was an improvement in the activities of the enzymes in the seedlings.…”

Section: Discussionsupporting

confidence: 93%

Microwave Irradiation Enhances the Germination Rate of Tartary Buckwheat and Content of Some Compounds in Its Sprouts

Wang¹,

Wang²,

Guo³

2018

Pol. J. Food Nutr. Sci.

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Tartary buckwheat (Fagopyrum tataricum) seeds were irradiated with microwaves at various power levels of 200, 400, 600 and 800 W for 10 or 30 s. The irradiated grains were germinated for 3, 5, and 7 days and harvested. The germination rate of the tartary buckwheat seeds and contents of some compounds in the sprouts were investigated. The results showed that the exposure to 600 W microwaves for 10 s resulted in the highest fi nal germination rate after 7 days of germination, which was 2 times that of the control. The exposure of seeds to 800 W for 30 s showed the lowest germination rate (approximately 10%), which decreased by 87% compared with the control (p<0.05). The exposure at 600 W for 30 s stimulated the total fl avones content, reduced the sugar and soluble protein contents, and increased the 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity. The highest free amino acid content (11 mg/g) was observed in 5-day sprouts exposed to 800 W for 10 s. Moreover, the microwave treatment had a positive effect on the catalase (CAT) and superoxide dismutase (SOD) activity.

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Section: Discussionsupporting

confidence: 93%

Microwave Irradiation Enhances the Germination Rate of Tartary Buckwheat and Content of Some Compounds in Its Sprouts

Wang¹,

Wang²,

Guo³

2018

Pol. J. Food Nutr. Sci.

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“…In contrast, exposure of corn (Zea mays) grains to microwaves resulted in improved grain germination, leaves with greater midrib vascular bundle length, thicker mesophyll, faster growth rate, higher contents of photosynthetic pigments, total soluble sugar and total carbohydrates (Khalafallah and Sallam, 2009). In fact, it has been suggested that low to moderate power and exposure time of microwave radiation stimulate the germination and seedling vigor of plants, while irradiation with increased frequency and power density reduce the seed germination and seedling vigor (Ragha et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Induction of stress volatiles and changes in essential oil content and composition upon microwave exposure in the aromatic plant Ocimum basilicum

Lung

Soran

Opriş

et al. 2016

Science of The Total Environment

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“…In case of wheat, green gram and bengal gram, decrease in trend was observed for vegetative growth and chemical constituents observed with increase in exposure time as compare to control (Ragha et al, 2011).…”

Section: Protein Analysis (Sds-page) In Acacia Farnesianamentioning

confidence: 77%

Effect of Microwave on Seed Germination and Plant Growth in Acacia Sp. (Acacia farnesiana and Acacia saligna)

2016

Alexandria Science Exchange Journal: An International Quarterly

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This study was carried-out at Orman Garden, Horticulture Research Institute, A.R.C. Giza, Egypt during the two successive seasons of 2013 and 2014. In this study, we aimed to test the effect of different exposure time from microwave on increasing vegetative growth and chemical constituents in Acacia farnesiana and Acacia saligna seedlings. The seeds have been exposed to the microwave radiation for 0s (control), 5s, 10s, 15s, 20s and 25s in the Acacia farnesiana and seeds have been exposed to the microwave radiation for 0s (control), 10s, 20s, 30s, 40s and 50s in the Acacia saligna in the both seasons respectively. Seedlings were planted individually in 30 cm diameter plastic pots filled with 8 kg of mixture of clay and sand at the ratio of (1:1) by volume. The obtained results revealed that the exposure time from microwave showed that significantly increasing in vegetative growth and chemical constituents. From the obtained results, it could be concluded that the highest mean in Acacia farnesiana plant was scored as a result of exposure time at 5 second. Whereas, it could be concluded that the highest mean in Acacia saligna plant was scored as a result of exposure time at 10 second in the both seasons, respectively.

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Effects of Low-Power Microwave Fields on Seed Germination and Growth Rate

Cited by 48 publications

References 9 publications

Microwave Irradiation Enhances the Germination Rate of Tartary Buckwheat and Content of Some Compounds in Its Sprouts

Microwave Irradiation Enhances the Germination Rate of Tartary Buckwheat and Content of Some Compounds in Its Sprouts

Induction of stress volatiles and changes in essential oil content and composition upon microwave exposure in the aromatic plant Ocimum basilicum

Effect of Microwave on Seed Germination and Plant Growth in Acacia Sp. (Acacia farnesiana and Acacia saligna)

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