Different hormones (KT, IAA, NAA, TDZ, 6-BA and ZT, etc.) affected the bud differentiation frequency, among them, TDZ increased the frequency of shoot formation (Table 3).

• 不同的外源激素（KT、6-BA、IAA、TDZ和玉米素等）也影响芽分化频率，其中TDZ可明显提高芽分化频率；