摘要
以药用植物滇桂艾纳香枝条不同茎段部位为材料,研究植物生长调节剂种类及浓度、插穗材料的老熟程度、扦插季节等因子对扦插效果的影响,为滇桂艾纳香扦插繁殖技术的建立提供依据。结果表明,单一植物生长调节剂处理以NAA 2.0 mg/L效果最好,插穗成活率为50.00%,平均生根数为3.23条,与清水处理的差异达极显著水平;两种植物生长调节剂组合处理,以NAA2.0 mg/L+IBA 2.0 mg/L组合处理效果最好,插穗成活率为58.33%,平均生根数为3.72条,与清水处理的差异达极显著水平;比较不同老熟度插穗的成活率和生根数,以老茎最好,其插穗成活率达72.22%,平均每株根数为3.05条,与中茎、嫩茎的差异均达极显著水平;春季取枝扦插的效果优于秋季,其中以老茎最好,其插穗成活率达73.89%,平均生根数为3.50条,两项指标与其他处理的差异均达极显著水平。
Different parts of the stems of medicinal plant Bloumea megacephala were used as materials to study the effects of different kinds and concentration of the plant growth regulators, parts of stalk-cutting and cutting seasons on the cutting results. The results showed that：among the treatments of single plant growth regulator,NAA 2.0 mg/L had the best effect-the stalk cutting survival rate showed 50.00 % and the average root number was 3.23, which showed very significant difference compared with CK1 （water treatment） ; among the treatments of two plant growth regulator combinations , NAA 2.0 mg/L ＋ IBA 2.0 mg/L got the best effect--the stalk-cutting survival rate reached 58.33 % and the average root number was 3.27, which also showed very significant difference compared with CK（ water treatment） ; comparing the results of different parts of stalk-cutting ,the old stem parts showed the best effect--the stalk-cutting survival rate reached 72.22 % and the average root number was 3.05, which showed very significant level compared with other two stem parts; compared the results of different cutting seasons, cutting in the spring season was better than that in the autumn and the old stem parts showed the best effect--the stalk-cutting survival rate reached 73.89 % and the average root number was 3.50 ,which showed very significant level compared with other treatments.
出处
《西南农业学报》
CSCD
2008年第3期787-791,共5页
Southwest China Journal of Agricultural Sciences
基金
广西科技厅科技攻关项目(桂科攻0537017-3)
关键词
滇桂艾纳香
扦插
植物生长调节剂
Bloumea megacephala（Randeria） Chang et Tseng
cutting
plant growth regulator
