5种植物病原真菌粗毒素防除草坪杂草的筛选  

Screening on Components of Herbcidal Aactivity among Five Plant Pathogenic Mycotoxins

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

机构地区：[1]沈阳农业大学

出　　处：《农药》2007年第4期278-279,282,共3页Agrochemicals

摘　　要：通过对5种植物病原真菌产生的毒素进行粗提,并用其对稗草、反枝苋、蒲公英、苘麻4种供试草坪杂草进行种子萌发抑制试验,对其除草活性进行研究。结果表明,烟草赤星病菌和玉米小斑病菌的粗毒素对草坪杂草种子的萌发有很强的抑制作用,而且对它们的芽和根的生长抑制也很强。安全性试验表明,烟草赤星病菌的粗毒素对供试草坪草种子的萌发、芽和根的生长安全。The herbicidal activity of the toxin from five plant pathogens was tested with four lawn weed species of Echinnochloa colonnnum, Amaranthus retroflexus, Taraxacum mongolicum and Abutilon theophrasti in the paper. Results showed that Alternnnaria alternate and Bipolaris maydis strongly inhibited. Safety experiment indicated that toxin from Alternnnaria alternate was safe to the lawn.

关 键 词：草坪杂草 病原真菌 粗毒素 除草活性 

分 类 号：S451[农业科学—植物保护]