3种植物生长调节剂对朱缨花扦插生根的影响试验

Effect of Plant Growth Regulators on cuttage propagation of Calliandra haematocephala

以不同浓度、不同组合的IBA、NAA、ABT处理朱缨花软枝和半软枝插穗,进行扦插生根试验。结果表明,不同浓度、不同组合处理的软枝和半软枝插穗生根率和根的生长效应不同,12.5 mg/LIBA+12.5 mg/L NAA与25 mg/L IBA+25 mg/L NAA可以提高朱缨花插穗的生根率,生根率最高的是12.5 mg/L IBA+12.5 mg/L NAA处理的半软枝插穗;25 mg/L IBA+25 mg/L NAA可以促进软枝插穗根的生长,12.5 mg/L IBA+12.5 mg/L NAA与25 mg/L ABT可以促进半软枝插穗根的生长;除个别情况外,朱缨花软枝插穗生根率和根的生长均好于半软枝插穗。

The influence of IBA＋NAA and ABT with various concentrations on rooting of Calliandra haematocephala cuttings were studied.The result indicated that different concentrations of IBA＋NAA and ABT had different effect on rooting of C. Haematocephala.Treatment of 12.5mg/L IBA＋12.5mg/L NAA and 25 mg/L IBA＋25 mg/L NAA could promote the rooting rate, Treatment of 12.5mg/L IBA＋12.5mg/L NAA on half young shoots induced the best rooting rate , treatment of 25 mg/L IBA＋25 mg/L NAA could promote the growth of young shoots, 12.5 mg/L IBA＋ 12.5 mg/L NAA and 25 mg/L ABT could promote the growth of half young shoots, With few exceptions, the young shoots rooting rate and root growth were better than half young shoots.