不同因子对盆栽八仙花扦插生根的影响

以1a生八仙花枝条为试材,研究了扦插基质、扦插部位、扦插时期及不同浓度萘乙酸对八仙花扦插生根的影响,以期为八仙花规模化、集约化生产提供科学依据。结果表明:草炭∶珍珠岩为1∶1的基质配比最适宜嫩枝扦插,成活率96.1%;留叶数量为1的插穗最适合半木质化枝条的扦插;半木质化枝条最适宜八仙花扦插,根部发育状况最好;6～7月为最适宜扦插时期,生根率为98.2%～98.6%;150mg/L NAA处理八仙花插穗的生根率最高,达93.3%。

Effect of Different Factors on Rooting of Cuttings of Potting Hydrangea macrophylla Ser

With Hydrangea branches of 1 year old as the material,the effects of different cutting substrates,different positions of shoot,different planting time and the different concentration of NAA on rooting of Hydrangea macrophylla Ser.were studied,in order to provide scientific basis for scale and intensive production.The results showed that the best composition of matrix for softwood cutting was 1 part grass charcoal plus 1 part pearlite,the survival rate was 96.1%;the cutting wood when only one leaf remained was most suitable for semi-lignified cutting;The cuttings were selected from semi-xylogen branches were the best rooting position;The percentage of generating root was 98.2%～98.6% during cutting from June to July.The percentage of generating root was 93.3% when shoot was soaked with 150 mg/L NAA.