玉米、小麦、大豆根系水溶性分泌物对马铃薯枯萎病菌的影响

摘要

With corn, wheat and soybean, three crops as materials, root exudates were collected through hydroponics to measure how they affect the growth of Fusarium oxysporum infecting potato. The results showed that the root exudates of corn, wheat and soybean inhibited the growth of F. oxysporum mycelium, spore germination, and spore yield. The inhibitory effect of corn root exudates was the most significant. Wheat root exudates came in the second place and soybean root exudates were the least effective.%以玉米、小麦和大豆3种作物为试验材料，利用水培法收集3种作物根系分泌物测定其对马铃薯枯萎病菌生长的影响。结果表明，玉米、小麦和大豆的根系分泌物对马铃薯枯萎病菌菌丝生长、孢子萌发和孢子产量均具有一定的抑制作用，尤其是玉米根系分泌物的抑制作用最为显著，小麦根系分泌物次之，而大豆根系分泌物的抑制效果较差。