中文摘要：

以蓖麻胚轴为外植体，研究了不同种类和浓度的细胞分裂素对胚轴再生不定芽的影响以及不同浓度的生长素对外植体根分化的影响。结果表明：从成熟蓖麻种子中剥离的胚轴接种在MS基本培养基并添加0．5mg／L6-BA或10．0mg／LZT中诱导不定芽的再生频率最高，分别为86．7％和68．9％。健壮的不定芽在MS＋0．2mg／LNAA的培养基中根分化率达26．7％。

英文摘要：

Taking cotyledon explants of castor bean as materials, the effect of different species and concentrations of cytokinin on shoot induction and different concentrations of auxin on root induction were studied. The results showed that mature seed-derived hypocotyl explants produced adventitious shoots when placed on MS medium containing 0. 5 mg/L 6-BA or 10. 0 mg/L ZT. The rate of shoot regeneration was maximal （86. 7% and 68. 9% respectively）, Shoots were transferred to root induction medium （MS-k-0. 2 mg/L NAA）, which root regeneration frequency achieved 26. 7 %.