抗生素对小麦种子萌发及幼苗生长的影响

Effects of Antibiotics on Seed Germination and Seedling Growth of Wheat

探明环境中抗生素残留对作物生长的影响,为生产应用提供科学依据,以烟农19和济麦22小麦品种为试验对象,通过测定其种子发芽率、根长、芽长、幼苗干重、叶绿素含量及POD活性,研究4种典型抗生素(盐酸左氧氟沙星氯化钠、青霉素钠、阿奇霉素和头孢唑林钠)对烟农19和济麦22种子萌发和幼苗生长的影响。结果表明:盐酸左氧氟沙星和青霉素钠对小麦生长产生不利影响,而低浓度(≤50mg/L)阿奇霉素处理对烟农19和济麦22幼苗的生长具有一定的促进作用,低浓度(≤50mg/L)的头孢唑啉钠对烟农19小麦种子的萌发和幼苗的生长有一定的促进作用。

To explore the influence of antibiotic residues in the environment on the growth of crops, and provide scientific basis for production application, through the determination of germination rate, root length, shoot length, seedling dry weight, chlorophyll content and POD enzyme activity of the crops, an experiment was carried out to explore the effects of different antibiotics （levofloxacin hydrochloride, penicillin sodium, azithromycin and cefazolin sodium） on seed germination and seedling growth of wheat （Yannong 19, Jimai 22）. Results： Levofloxacin hydrochloride and penicillin sodium inhabited the growth of wheat （Yannong 19, Jimai 22）, while low concentration （≤50 mg/L） of azithromycin promoted seedling growth of Yannong 19 and Jimai 22, and low concentration （≤50 mg/L） of cefazolin sodium increased seed germination rate and promoted the seedling growth of Yannong19.