Stationary magnetic field stimulates rice roots growth
2019
Florez García, Mercedes | Álvarez Sánchez, José | Martinez Ramírez, Elvira | Carbonell Padrino, María Victoria
Magnetic field is an environmental factor playing an important role in living organisms, although its effect is not well known. An increase of roots and stem length was observed in seeds subjected to a stationary magnetic field. Some authors have explained the close relation of the magnetic field to cell metabolism of plants. This paper is a survey of magnetic fields effects on rice seedling exposed to magnetic field of two induction values, both stronger than the geomagnetic field, for various length of time. Root length was measured on the 3rd, 7th and 10th day after seeding. Magnetically treated seedlings grew longer and heavier than untreated ones. On the 3rd day the length of roots of seedlings chronically exposed to 125 and 250 mT were significantly longer (20.67 and 30.61 mm respectively) than control (9.05 mm). On the 7th day, significant differences were observed for doses D6 (chronically exposed to 125 mT) and D11 (exposed to 250 mT for 24 h) related to controls. On the 10th day, exposed roots were longer and heavier than control roots, but not significantly. In addition, secondary roots of plants chronically exposed to magnetic field were more developed than untreated ones.
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