Abstract：
The Earth\'s geomagnetic field (GMF) is an inescapable environmental factor for plants that affects all growth and yield parameters. Both strong and weak magnetic fields (MF), as compared to the GMF, have specific roles in plant growth and development. MF technology is an eco-friendly technique that does not emit waste or generate harmful radiation, nor require any external power supply, so it can be used in sustainable modern agriculture. Thus, exposure of plants to MF is a potential affordable, reusable and safe practice for enhancing crop productivity by changing physiological and biochemical processes. However, the effect of MF on plant physiological and biochemical processes is not yet well understood. This review describes the effects of altering MF conditions (higher or lower values than the GMF) on physiological and biochemical processes of plants. The current contradictory and inconsistent outcomes from studies on varying effects of MF on plants could be related to species and/or MF exposure time and intensity. The reviewed literature suggests MF have a role in changing physiological processes, such as respiration, photosynthesis, nutrient uptake, water relations and biochemical attributes, including genes involved in ROS, antioxidants, enzymes, proteins and secondary metabolites. MF application might efficiently increase growth and yield of many crops, and as such, should be the focus for future research.
摘要：
地球的地磁场（GMF）是植物不可避免的环境因素，会影响所有生长和产量参数。强磁场和弱磁场（MF），与GMF相比，在植物生长发育中具有特定的作用。MF技术是一种环保技术，不会排放废物或产生有害辐射，也不需要任何外部电源，所以它可以用于可持续的现代农业。因此，植物暴露于MF是一种潜在的负担得起的方法，通过改变生理和生化过程提高作物生产力的可重复使用和安全的做法。然而,MF对植物生理生化过程的影响尚不清楚。这篇综述描述了改变MF条件（高于或低于GMF的值）对植物生理和生化过程的影响。关于MF对植物的不同影响的研究的当前矛盾和不一致的结果可能与物种和/或MF暴露时间和强度有关。综述的文献表明，MF在改变生理过程中发挥作用，比如呼吸，光合作用,营养吸收，水关系和生化属性，包括与ROS有关的基因，抗氧化剂,酶，蛋白质和次级代谢产物。施用MF可以有效地提高许多作物的生长和产量，因此，应该是未来研究的重点。
