不同溶液浸泡处理对鹅掌柴扦插繁殖的影响

Effects of Different Dipping Solution on the Cuttings of Schefflera octophylla in Cutting Reproduction Study

以清水对照,用多菌灵+福美双溶液和NAA+IBA溶液对鹅掌柴插穗浸泡处理后扦插,试验对插穗的形态生长指标和生根过程进行了统计,并对插穗内源性激素IAA、ABA的含量进行了分析。结果表明:NAA+IBA和适宜的多菌灵+福美双溶液均可提高插穗的生根率,促进根生长。经浸泡处理的插穗的成活率显著地高于对照(p<0.01)。多菌灵+福美双溶液浸泡插穗3h的理论最佳浓度为519mg/L。519mg/L多菌灵+福美双和200mg/LNAA+IBA处理都提高了插穗IAA的含量,ABA的含量却有所降低。用519mg/L多菌灵+福美双和200mg/LNAA+IBA分别浸泡插穗1.5h,成活率达到95.6%,比单独用200mg/LNAA+IBA处理的成活率提高了10%(p<0.05);实验结果还表明,鹅掌柴的生根属混合生根型。

The cuttings of Schefflera octophylla were dipped in two solutions and water control for cutting reproduction experiments. The two solutions contain Carbendazim ＋ Thiram and NAA ＋ IBA, respectively. Form growth index and endogenous hormone dynamics, IAA and ABA, during whole rooting process, were studied. The results indicated that NAA ＋ IBA and Carbendazim ＋ Thiram can promote rooting. The survival rates of the cuttings dipped in solutions were more significant than the control group （p 〈 0.01 ）. The best concentration of Carbendazim ＋ Thimm was 519 mg/L dipped for 3 h. The treatments of 519 mg/L Carbendazim ＋ Thiram and 200 mg/L NAA ＋ IBA enhanced the content of IAA in basal stems, while ,reduced ABA. After treated for 1.5 h with the mixture of the two solutions, the survival rate reaches 95.6%, increased 10% than only treated by 200 mg/L NAA ＋ IBA （p 〈0.05 ）. The results showed that cutting of S. octophyUa were mix-striking root （ adventitious roots originated from cortices and calli）.