15种植物病原真菌培养滤液除草活性初步筛选  

Screening of herbicidal components from fifteen plant pathogenic isolates

作　　者：白莹莹[1] 魏松红[1] 刘大旻 尹晓东[1] 刘冰[1] 何志勇[1] 

机构地区：[1]沈阳农业大学 [2]辽宁省鞍山市绿化处,114000

出　　处：《植物保护》2007年第4期77-80,共4页Plant Protection

摘　　要：通过15种植物病原真菌的培养滤液对草坪杂草稗草、反枝苋、蒲公英、车前、苘麻进行种子萌发抑制试验,对其除草活性进行了初步研究。结果表明:玉米小斑病菌、黄瓜黑星病菌的培养滤液对稗草、蒲公英、车前都表现出显著的除草活性;玉米大斑病菌的培养滤液仅对稗草和蒲公英表现显著的除草活性;烟草赤星病菌的培养滤液仅对车前和苘麻表现了显著的除草活性。安全试验表明:烟草赤星病菌的培养滤液对黑麦草和早熟禾种子的萌发、芽和根的生长表现安全;黄瓜黑星病菌的培养滤液仅对黑麦草种子的萌发、芽和根的生长表现安全。The herbicidal activity of the culture filtrates from fifteen plant pathogens was tested with five lawn weed species, Echinochloa colonurn , Amaranthus retro flexus , Taraxacurn rnongolicurn , Plantago asiatica and Abutilon theophrasti in this study. The results of seed germination experiments showed that Bipolaris maydis and Cladosporiurn cucuerinurn strongly inhibited E. colonurn, T. mongolicurn and P. asiatica, while Exserohilurn turcicurn obviously repressed E. colonurn, T. mongolicurn. Alternaria alternate had marked inhibiting effect on P. asiatica and A. theophrasti.

关 键 词：病原真菌 培养滤液 除草活性 

分 类 号：S482.49[农业科学—农药学]