赤霉素、硫脲处理对黄精根状茎和须根发生的影响

为诱导无芽黄精根状茎产生不定芽,选择不同的化学物质进行诱导处理。结果表明,GA3处理效果明显,选用0.4 mg/L的GA3浸泡25 min对黄精根状茎不定芽的产生和须根生长有明显促进作用,高浓度抑制其生长;1%硫脲浸泡处理对黄精无顶芽根状茎萌发新芽和须根有明显的抑制作用。

Using GA_3 and Thiourea with different concentration and time induce the bud increasing of Polygonatum sibiricum Redoute.The results showed that: the GA_3 treatment had obviously effect,the bud increasing and the rhizoma growing had obvious improved when Polygonatum sibiricum Redoute immersed in 0.4mg/L GA_3 25minutes,but high concentration hampered the growing.The soaking treatment of 1% Thiourea on the Polygonatum sibiricum Redoute significantly decreased the gowing of rhizome and fibrous roots.