The Change of Enzyme Activities Induced with Copolymer of Chlorine and Potassium Ions in Cucumber Leaf
DU Jun-qing, YUN Xing-fu, MA Li-guo, LIU Jie-cai
ACTA AGRICULTURAE BOREALI-SINICA . 2004, (2): 32 -36 .  DOI: 10.3321/j.issn:1000-7091.2004.02.009