The known world you know could not exist without electromagnetic energy. The term radiation refers to energy in the electromagnetic spectrum, visible light, ultraviolet light and infrared are non-ionizing radiations. Gamma rays are photons, which are type of elementary particles traveling at the speed of light with zero mass and zero charge, have much shorter wavelengths, are called ionizing radiations because they are capable of producing ions by knocking electrons out of the normal orbits of atoms or molecules. Ultraviolet light plays important part of our daily lives than most people realize, where it is a form of electromagnetic radiation with wavelength from 10 nm to 400 nm, shorter than of visible light, but longer than x-rays or it is a form of non-ionizing radiation emitted from the sun and artificial sources and its beneficial effect is production of a vitamin D. Only a few studies are available in literature about the effect of radiation on structure and antioxidants of seeds. For this reason, this book is interesting for scientist and who works in agriculture, pharmacology and bioengineering because it contains new and not available research data.

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By (author) :

Abu Bakr El-Bediwi

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Biochemistry, biophysics