Physical Factors for Plant Growth Stimulation Improve Food Quality

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

“…When water is magnetized, some properties changed which can alter the characteristics of plant, growth and production. It was suggested that MW irrigation could increase the germination of seed 41 . Similarly, other field studies have indicated a significant role of MW irrigation of seeds in improving the growth of seedling 35,39 .…”

Impact of sound irradiation on chlorella vulgaris cell metabolism

“…The ultrasound irradiation also accelerates the development of plant tissues. For example, the growth rate of both shoot and root of carrot seeds raises by 15 % (22 kHz, power 150 W, 3 min) [6].…”

Laser treatment may enhance growth and resistance to fungal infection of hard wheat seeds

“…The growing need for ecological agricultural products together with the increased demand of crop materials for food production as well as for other branches of industry imposes the necessity for searching new, safer decisions for raising the agricultural production [1] .Sustainable agriculture is a management system for renewable natural resource for food production income and livelihood for present and future generations, maintaining and improving in comic productivity and the ecosystem [2].The last 50 years different chemical additives are used for fertilizing crops ,controlling pests and helping to develop highly successful farm system, ensuring an abundant and wholesome food supply as described by [3], but their application causes the contamination of raw materials for food production with toxins ,decrease in plant resistance ,plant yield and soil yielding capacity [2].The influence of physical factors as microwave and laser radiation are useful for plants enable to vegetate at higher energy level .It is based on the fact that physics methods increase the energy account by internal transformation of energy independent of their origin into electrical and increasing the electro potential of the biomembrane [4].The germination of seeds is dependent on both internal and external conditions, one of the most important external factors is light [5] Which plays critical role in plants photosynthesis, also the non-photosynthetic processes involving action of light ,like photo morphogenesis [6]. Laser irradiation is considered as a new branch in agriculture [7].the amazing characteristic of laser radiation, such as monochromatic, polarization, coherence and high density, can be used in all spheres of biology and plant growing [8].The changes that occur in the physiological state of seeds ,and plants can stimulate or inhibit their development and resistance to fungal disease ,and depend closely on the laser radiation type ,its wavelength ,intensity and the duration of exposition [2][9] [10].…”