The MS medium supplemented with 0.2mg/L 6-BA,0.01mg/L IAA or 0.2mg/L 6-BA,0.01mg/L IBA were found promising effect in elongation, which is a key step of in vitro propagation of castor( Ricinus communis ) from meristematic explants.

• 在蓖麻的茎尖培养中；幼芽伸长是关键的一步；添加0.；2mg/L 6-BA；