The Utilization of Outside Test-tube Rooting for Virus-free Sweet Potato Tissue Culture SEEDLINGS

The technique of outside test-tube rooting for tissue culture seedlings is practical and economic in industrial production of plant tissue culture.The virus-free sweet potato tissue culture seedlings were used as research material for outside test-tube cultivation.It was found that the quality of test-tube seedlings,culture media and growth hormones had remarkable influences on outside test-tube rooting of the tissue culture seedlings.The rooting rate of polluted test-tube seedlings can be enhanced up to 84.5 %.The acquired transplanting seedlings after outside test-tube rooting are higher than transplanting seedlings after training seedlings by 124.74 %,which increased the survival rate by 3 %.