After the isolation, 4 plants (T5) were selected to have herbicide test and 5 plants (T6) resisted herbicide and were still alive.

Aim: Discussion soil herbicides on alfalfa Zhaodong dose Screening Test, the herbicide can be selected for the alfalfa varieties and soil treatment doses of herbicide.

In order to evaluate the safety of anti herbicide gene (BAR) transgenic rice, acute toxicity experiments, mutation experiments and a 30 day feeding test were conducted.