Abstract
In the perspective of seed technology, physical methods that were generally used to increase the plant production provide advantages as compared to conventional methods that use chemical substances. The impacts of physical treatments for invigoration in seeds tended to be addressed at different levels that include changes in the gene expression, the structural and morphological aspects, and metabolite or protein accumulation. The physical methods used for the pre-sowing treatments are irradiation with microwaves (MWs), magneto-priming, and ionizing radiations (IRs). “Magneto-priming” depends upon the use of magnetic fields and portrayed as a cheap, noninvasive, and eco-friendly technique with demonstrated gainful impacts on vigor, crop yield, and seed germination. Radiation such as gamma rays and X-rays has been generally viewed as a powerful contrivance in food technology and agricultural sciences. Positive impacts on seedling vigor, health, and germination were aroused by ultraviolet radiations (UV) that include UV-C and UV-A. Among all the identified physical treatments, a connected and basic research is yet expected to characterize the genotype, optimal dose required, and irradiation conditions that all depend on environment. Electron spin resonance has a huge prospective in regard to seed technology not correctly scrutinized to a point in time to end the treatment. Physical methods for the seed invigoration were described in the current chapter as well as emphasized to address the needs of seed technologists, trade makers, and producers by using the physical methods.
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Rehman, A., Mazhar, K., Ijaz, M., Ali, Q., Ahmad, S. (2019). Seedling Pretreatment: Methods and Protocols. In: Hasanuzzaman, M., Fotopoulos, V. (eds) Priming and Pretreatment of Seeds and Seedlings. Springer, Singapore. https://doi.org/10.1007/978-981-13-8625-1_5
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