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.
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