不同生根剂浓度与基质种类对南方红豆杉插条生根的影响  

Effects of different rooting agent concentration and different substrate types on cuttings rooting of Taxus wallichiana var. marirei

作　　者：曹基武[1] 刘春林[1] 吴毅[1] 黎恢安 尹大军 伍细莲 吴林世[1] 胥雯[1] 

机构地区：[1]中南林业科技大学,湖南长沙410004 [2]莨山珍稀植物研究所,湖南新宁422700

出　　处：《中南林业科技大学学报》2013年第12期10-14,共5页Journal of Central South University of Forestry & Technology

基　　金：国家公益性行业专项(20110416)

摘　　要：为满足人们对南方红豆杉苗木的需求,对南方红豆杉的扦插繁殖技术进行研究,即采用不同种类和浓度的生长素激素及不同种类的扦插基质对南方红豆杉扦插繁植技术进行研究,结果表明:经处理后插穗的各项生根指标都得到了显著提高,以吲哚丁酸钾盐8 g/kg(液态)+荷尔蒙顿38 g/kg(固态)处理10 s,效果为最佳,平均生根率达87.63%,平均根体积达38.87 cm3,根数和根长均达最大值;不同扦插基质比较,以种植在以70%河沙:30%黄心土的基质为最优配方,平均生根数为21.67条,生根率高达72.22%,生根数和生根率均达最大值。In order to meet the demands for Taxus wallichiana var. marirei seedlings, the cutting propagation technology of T. wallichiana vat marire was studied by applying different types of cutting matrix and concentrations of hormone auxin cultivated in different cutting medium. The results show that the every rooting indexes of the cuttings were improved significantly after treated, for example, the cuttings were treated with indole butyric acid potassium salt 8 g/kg （liquid state） ＋ hormone Dayton 38g/kg （solid state） for 10 seconds, the effect was the optimal, the average rooting rate was 87.63% and the average root volume reached 38.87 cm3, the rooting number and rooting length also reached their maximum values; when comparing different cutting matrix, the optimum formulation was a combination of 70% sand and 30% yellow soil matrix, resulting an average rooting number of 21.67 and a rooting rate of 72.22%, the rooting number and rooting rate both reached the maximum.

关 键 词：南方红豆杉 生长激素 扦插基质 生根率 

分 类 号：S791.49[农业科学—林木遗传育种]