The results showed that with the increase of the concentration of the crude toxin in culture media, the frequency of callus induction and green plant regeneration was decreased.

• 结果表明：随着赤霉病菌粗毒素预处理浓度的提高，大麦花药愈伤组织诱导率降低，愈伤组织的绿苗分化率降低。