Studies were made on siliques growth and seeds maturity of rapeseed (B.napus) treated by different plant hormones at ripening stage. The main results were showed in the following. It could be promoted that siliques not only increased in length and width and also increased number of seeds per siliques by 1.5mg/L KI+1mg/L NAA with treatment 1 time. It could be promoted that seeds weight increased by 1.5mg/L KI with treatment 2 and 3 times and oil content in seed increased by 1mg/L NAA with treatment 2 and 3 t...