Blotting was used to observe cell structures of leaf epidermis cells, and the key method of leaf transaction observation was paraffin section. The concentration
16S rDNA and ERIC (Enterobacteia Repetitive Intergenic Consensus Sequences) based on PCR method were tested for the effectiveness of the differentiation of B. thu
Etrazine is one of the most widely used herbicides in China and the world. Acute and chronic toxicity tests werc carried out to assess the possible toxicity eff