The peanut plantlets were regenerated from shoot tips less than 5mm of 5 peanut varieties on MS basad medium supplmented with different plant growth regulator.The experimental results indicated that the pecentage of callus and poly shoots were 90.0% and 80.6% respectively on the medium supplemented with BA 1.0 mg/L+NAA 1.0 mg/L;the pecentage of rooting and average number of rooting/explants 86.7% and 5.1 respectively on medium supplemented with NAA 2.0 mg/L+BA 0.1mg/L;2,4 D could stimulate to induce callus...