前言大豆病害种类较多,危害严重,如霜霉、灰斑和细菌性斑点病,可使植株早期落叶,瘪荚增加,含油量减少,造成产量和品质降低。虽然当前重视单抗育种,但是还会导致各种病害的恶性循环。应用化学药剂防治病害,由于药剂的长期大量使用,不仅造成环境污染,同时更严重地引起病菌生理小种的改变,使抗药力增强,不能减轻病害。可见进行兼抗、多抗鉴定以及抗源筛选与创新,为培育多抗优良新品种提供可靠的 Preface Soybean diseases are many types of serious harm, such as downy mildew, gray spots and bacterial spot disease, can make early deciduous plants, defoliation pods increase, reduce oil content, resulting in lower yield and quality. Although the current emphasis on monoclonal antibody breeding, but also lead to a vicious circle of various diseases. The application of chemical agents to prevent diseases, due to long-term use of large quantities of pharmaceutical agents, not only cause environmental pollution, but also more serious changes in germ physiological races, so that drug resistance increased, can not reduce disease. Visible for anti-and multi-resistance identification and resistance screening and innovation, to cultivate more resistant new varieties to provide reliable