Effects of microwave treatment on growth, photosynthetic pigments and some metabolites of wheat

Hamada, E. A. M.

doi:10.1007/s10535-007-0068-y

Cited by 25 publications

(19 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Seed irradiation did not influence the amount of photosynthetic pigments in radish seedlings FM. Positive effect of HPM on photosynthetic pigment amount in wheat seedlings was reported by Hamada (2007). He admitted that chlorophyll a/b and carotenoids ratios increased in 7 days' old seedlings, but they tended to diminish in 14 days' old seedlings as compared with non-irradiated seedlings.…”

Section: Results and Analysismentioning

confidence: 88%

“…Other scientists found that direct effect of electromagnetic fields stimulates the development of tomato plants, irradiated tomato sprouts grew up higher, formed more leaves and accumulated more fresh mass (Stašelis et al, 2004). Hamada (2007) investigated different doses of microwaves on wheat and determined that irradiation increased root and shoot lengths also fresh mass in 14 days' old wheat seedlings.…”

Section: Results and Analysismentioning

confidence: 99%

“…Various experiments showed that HPM can affect plant growth and the prolonged exposure to microwave affects seed germination (Hamada, 2007;Aladjadjiyan, 2010;Salama et al, 2011). Oprica (2008) indicated that microwaves determined variations of catalase and peroxidase activities in Brassica napus depending on the microwave exposure time, age of the plants, and condition of seeds (germinated or non-germinated).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The effect of strong microwave electric field radiation on: (1) vegetable seed germination and seedling growth rate

Radzevičius

Sakalauskienė

Dagys

et al. 2013

Zemdirbyste-Agriculture

View full text Add to dashboard Cite

The effect of high power microwave (HPM) irradiation on seed germination and seedlings was evaluated. Vegetable seeds were subjected to HPM irradiation. The main focus was on the thermal heating elimination during seeds irradiation. For that reason short high frequency microwave pulses were used. The study object was seeds of different harvest years (2000, 2003 and 2008) of radish (Raphanus sativus L.) variety 'Babtų žara', tomato (Lycopersicon esculentum Mill.) variety 'Viltis', carrot (Daucus sativus Rohl.) variety 'Vaiguva' and tomato (Lycopersicon esculentum Mill.) variety 'Red Cherry' (seeds harvested in 1980). In the first experiment, all seeds were exposed to microwaves at 9.3 GHz frequency for 10 min. In the second experiment, carrots 'Vaiguva' seeds (11 years-old) were exposed to microwaves at 9.3 GHz frequency for 5 and 20 min and exposed to 2.6 and 5.7 GHz microwaves for 10 min. To establish microwave effect on seedling growth rate, tomato, carrot and radish seeds harvested in 2008 were exposed to microwaves at 9.3 GHz frequency for 10 min. It was established that 11 year-old radish seeds exposed to 9.3 GHz microwaves had higher germination as compared with non-irradiated seeds. HPM increased radish germination energy by 6% in seeds harvested in 2003. HPM exposure significantly increased the germination energy and germination of 8 year-old carrot seeds. The highest carrot seed germination was established at 9.3 GHz microwave frequency under 5 min exposure. Seed exposure to HPM (9.3 GHz) had a significant positive effect on dry weight of tomato seedling shoots and on tomato and radish seedling height, but it had negative influence on carrot seedling height. Seed irradiation with HPM (9.3 GHz) had a significant positive effect on the amount of chlorophyll a, chlorophyll b, chlorophylls a + b and carotenoids in tomato seedlings' fresh mass, but the opposite effect was determined in carrot seedlings' fresh mass.

show abstract

Section: Results and Analysismentioning

confidence: 88%

Section: Results and Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The effect of strong microwave electric field radiation on: (1) vegetable seed germination and seedling growth rate

Radzevičius

Sakalauskienė

Dagys

et al. 2013

Zemdirbyste-Agriculture

View full text Add to dashboard Cite

show abstract

“…Moreover, this increase was positively correlated with the microwave power [Łupinska et al, 2009;Han, 2010]. The protein and amino acid contents of wheat seedlings increased when the seeds were pretreated with microwaves, and the increase was microwave irradiation dose-dependent [Hamada, 2007]. The dose-dependency may be related to the changes in the protein structure of the enzyme due to the microwave treatment [Damm et al, 2012].…”

Section: Introductionmentioning

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.

View full text Add to dashboard Cite

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.

show abstract

“…Br. ), parthenium (Parthenium hysterophorus L.) and bellyache bush (Jatropha gossypiifolia L.) [36] Effects of microwave treatment on growth, photosynthetic pigments and some metabolites of wheat [66] Microwave seed treatment reduces hardseededness in Stylosanthes seabrana and promotes redistribution of cellular water as studied by NMR relaxation measurements [67] Effect of microwave fields on the germination period and shoot growth rate of some seeds [68] Germination of Chenopodium album in Response to Microwave Plasma Treatment [69] Work conditions for microwave applicators designed to eliminate undesired vegetation in a field [70] microwave treatment (Figure 7), Khan et al [72] demonstrated that immediately after microwave soil treatments, the relative abundance of Firmicutes increased while the relative abundance of Proteobacteria decreased significantly. They also showed that the relative abundances of beneficial soil microbes (Micromonosporaceae, Kaistobacter and Bacillus) were significantly higher, as soils recovered from high heating intensities induced by microwave soil treatment, compared with untreated soils.…”

Section: Paper Title Referencementioning

confidence: 99%

Microwave Soil Treatment and Plant Growth

Brodie¹,

Khan²,

Gupta³

2020

Sustainable Crop Production

View full text Add to dashboard Cite

Crop yield gaps can be partially overcome by soil sanitation strategies such as fumigation; however, there are fewer suitable fumigants available in the marketplace and growing concerns about chemical impacts in the environment and human food chain. Therefore, thermal soil sanitation has been considered for some time and microwave soil treatment has some important advantages over other thermal soil sanitation techniques, such as steam treatment. It is also apparent that microwave soil sanitation does not sterilize the soil, but favors beneficial species of soil biota making more nutrients available for better plant growth. From these perspectives, microwave soil treatment may become an important pre-sowing soil sanitation technology for high value cropping systems, allowing agricultural systems to better bridge the crop yield gap.

show abstract

Effects of microwave treatment on growth, photosynthetic pigments and some metabolites of wheat

Cited by 25 publications

References 13 publications

The effect of strong microwave electric field radiation on: (1) vegetable seed germination and seedling growth rate

The effect of strong microwave electric field radiation on: (1) vegetable seed germination and seedling growth rate

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

Microwave Soil Treatment and Plant Growth

Contact Info

Product

Resources

About