【摘要】 用聚乙烯吡咯烷酮（PVP）预处理甘蔗顶端外植体，并以PVP作为附加成分直接加入培养基，均可取得防止接种物褐变坏死的良好效果；但同时发现，当加入培养基中的PVP达到一定浓度，则会表现出延缓分化芽增殖速度的不良作用；对PVP在植物组织培养中的应用作出评价．更多还原

【Abstract】 When the PVP(Polyvinylpyrrolidone) was used in pretreatment of sugareane explant and usedas an additive in medium, a positive result was obtained which prevented brown turning and necrosis ofinoculum. Meanwhile, it was found that the proliferous rate of differentiated bud was delayed when thePVP concentration in the medium increased in a certain extent. The application of PVP in the plant tissueculture was evaluated affirmatively.更多还原