绢毛匍匐委陵菜的适宜营养繁殖方式  

Research on the suitable vegetative reproduction method for Potentilla reptans var.sericophylla

作　　者：姚峰[1] 蔺银鼎[1] 

机构地区：[1]山西农业大学,山西太谷030801

出　　处：《草业科学》2016年第4期700-705,共6页Pratacultural Science

基　　金：耐旱耐阴开花坪用植物委陵菜新品种驯化选育(20130311018-2)

摘　　要：绢毛匍匐委陵菜(Potentilla reptans var.sericophylla)的生态适应性较好,可作为园林地被植物广泛应用,但目前其繁殖方法不能满足大田生产的需要,新的繁殖方式研究迫在眉睫。2014年7^(-1)0月在山西农业大学林学院苗圃开展了绢毛匍匐委陵菜适宜营养繁殖方式的研究,以引种到苗圃的绢毛匍匐委陵菜为材料,现场剪取其茎段,采用撒茎覆土法、开沟植茎法和压条法3种方式栽植。结果表明,3种繁殖方式中,撒茎覆土法繁殖效果最好,绢毛匍匐委陵菜成活率可达到96%;70d后盖度达到73%,分株数289株·m^(-2),匍匐茎数量57条·m^(-2);植物量积累较多,其中地上植物量为0.011g·cm^(-2),地下植物量为0.004 2g·cm^(-2);叶绿素含量较高,达到2.77mg·g^(-1)。因此,绢毛匍匐委陵菜撒茎覆土法可在大田生产中广泛应用。Potentilla reptans var.sericophylla has good ecological adaptability,can be wildly used as cover plant.But the current planting method can not meet the needs of field production,new planting method research is imminent.The research of suitable vegetative reproduction method for P.reptans var.sericophylla was accomplished in forestry college nursery of Shanxi agricultural university from July to October in 2014,this experiment with the P.reptans var.sericophylla which induced to nursery by predecessor as material,shearing the stem section,adopts the method of spreading stems and covering soil,the method of trenching and planting stem and the method of layering to plant,the results showed that in three different planting method,the method of spreading stems and covering soil worked best.The survival rate of this method which reproduce P.reptans var.sericophyllacan reach 96%,its coverage reached 73% after 70 days,the number of ramets reached 289 per square meter and stolons reached 57 per square meter,higher biomass accumulation included biomass on the ground part 0.011g·cm^-2 and biomass under the ground part 0.004 2g·cm^-2,chlorophyll content was higher,it can reach 2.77mg·g^-1 and be widely used for field production.

关 键 词：绢毛匍匐委陵菜 繁殖方式 坪用特性 

分 类 号：S688.4[农业科学—观赏园艺]