几种物理技术在提高植物抗逆性中的研究进展

提高植物自身对外界不良环境的抵抗能力一直是植物研究人员关注的热点，物理方法在这一领域中正得到日益广泛的应用。本文综合沦述了近年来电场、磁场、电离辐射、激光等物理技术处理植物的种子或幼苗在提高植物抗冻、旱以及病害等逆境的能力，促进农作物增产中的应用成果及其可能的生理生化机制，并对未来的发展方向作了展望。

Research Advances of Several Physical Techniques in Improving Plant Resistance

It always is a hotspot of plant researchers' concern to make plants to improve their own adversity-resisting capability and physical methods has gotten more and more widely adopted in this field.The paper fully summarizes the uses of electric field,magnetic field,ionizing radiation,laser in treating plant seeds or seedlings to improve the plant resistances to such adversities as cold,drought and diseases,introduces the achievements in their increasing crop yields and the corresponding possible physiological and biochemical mechanisms,and envisages their development prospects.