摘要
试验证明,抗菌剂变温浸种灭菌法是铲除潜伏在种子内部病原细菌的一种有效技术。采用新植霉素300ppm或武夷菌素120ppm、农抗“120”1:20,药温47℃,浸种1.5小时,均可获得彻底灭菌效果。并且对种子发芽有促进作用,发芽率比对照增加2.0～7.4％。常温抗菌剂浸种,浓度与变温浸种相同,而浸种时间需延长至18小时。其结果无论哪种抗菌剂处理均有病原细菌存活8.4×10～25×10~2CFU/ml。同时种子发芽率也有所下降。因此,常温浸种不能用于引种玉米的消毒处理。
Results of laboratory experiments showed that soaking with warm solution of several biological agricultural antibiotics was an effective method of eliminating Erwinia stewartii pathogen carried in imported corn seeds. It was found that soaking the seeds for 1.5 hours in solutions of Xinzhimeisu 300 ppm, or Wuyijunsu 120 ppm, or Agricultural Antibiotic 120 at 1:20, or Zhongshengjunsu at 1:20, with the solution temperature changed from 47℃ to 40℃, was sufficient to destroy 'the bacterium. This method could also stimulate germination of the seeds. In comparison, soaking the seeds with the same antibiotics at normal room temperature did not eliminate the bacterium completely and required 18 hours for the treatment.
关键词
玉米
细菌性枯萎病
抗菌剂
浸种
bacterial wilt Ervinia stewartii corn disease agricultural antibiotics
