西瓜枯萎病病株根茬腐解液对西瓜的致害作用  

Root Residue of Watermelon Fusarium Wilt Disease on the Auto Intoxication of Watermelon

作　　者：王敏[1] 高增贵[1] 张硕[1] 孔婷婷[1] 王小皙[1] 周艳波[1] 

机构地区：[1]沈阳农业大学植物免疫研究所,辽宁沈阳110866

出　　处：《北方园艺》2013年第3期130-132,共3页Northern Horticulture

基　　金：沈阳市科技攻关专项资助项目(F12-119-3-00);辽宁省科技攻关资助项目(2011214002)

摘　　要：以不同浓度西瓜枯萎病病株根系残茬腐解液为试材,研究了其对西瓜的自毒作用及对枯萎病菌产孢和菌丝生长的影响,以期为进一步解决连作障碍,提高西瓜的产量和品质提供一定的理论依据。结果表明:西瓜根系残茬腐解液中分泌的自毒物质,抑制了植株的正常生长发育,是连作障碍发生的主要原因之一,因此西瓜不宜连作,应进行适时的轮作。Taking the root residue decomposed liquid of watermelon fusarium wilt disease as materials, the effect of the auto intoxication of watermelon and stubble of fusarium wilt disease and myeelial growth were studied, in order to provide a theoretical basis for further addressing the obstacles of continuous cropping, and to improve the yield and quality of watermelon. The results showed that intoxication produced by decomposed liquid of watermelon root residue inhibited growth and development,which was one of the main factors,so watermelon was available for continuous cropping and should be timely rotation cropping.

关 键 词：西瓜枯萎病 西瓜根茬腐解液 连作障碍 自毒物质 

分 类 号：S436.5[农业科学—农业昆虫与害虫防治]