半枫荷扦插技术研究

以生根剂类型、插穗选取部位、插穗长度、插穗直径等为试验因素,对半枫荷进行4因素3水平的扦插繁殖正交试验,研究不同因素、水平对半枫荷扦插繁殖的影响,以期为人工无性繁殖半枫荷提供依据。试验结果表明:生根剂类型、穗条选取部位、插穗长度、插穗直径均会影响半枫荷的扦插成活率,且影响序为:生根剂类型(A)>穗条选取部位(B)>插穗长度(C)>插穗直径(D)。选择采自半枫荷母树基部萌出的穗条制作成长度为6cm、直径0.5cm的插穗,并使用300mg·L-1的ABT生根剂溶液对插穗进行处理,扦插成活率可达91.11%。采用恶霉灵代替高锰酸钾对扦插基质进行杀菌消毒,扦插成活率可提升至93.33%。

A Study on Cottage Technique of Semiliquidambar cathayensis

Using rooting agent type,cutting site selection,cutting length,cutting diameter as experimental factors,a four-factor and three-level cutting propagation orthogonal test was conducted on Semiliquidambar cathayensis to study the effects of different factors and levels on the cutting propagation of Semiliquidambar cathayensis.Provide a basis for artificial asexual reproduction of Semiliquidambar cathayensis.The test results showed that the type of rooting agent,the location of cuttings selection,cutting length,and cutting diameter all affected the cutting survival rate of Semiliquidambar cathayensis,and the influence order was:rooting agent type(A)>selection location of cuttings(B)>cuttings Length(C)>Cutting diameter(D).The cuttings from the base of Semiliquidambar cathayensis were selected to make cuttings with a length of 6 cm and a diameter of 0.5 cm.The cuttings were treated with ABT rooting solution of 300mg·L-1,and the cutting survival rate was 91.11%.The use of hymexazol instead of potassium permanganate to sterilize the cutting substrate can increase the cutting survival rate to 93.33%.