基质和ABT1号浓度对杉木扦插生根的影响  

Effects of Different Matrixes and Concentrations of ABT1 on Cutting Rooting of Cunninghamia lanceolata

作　　者：袁莲珍 杨斌 史富强 刘际梅 YUAN Lianzhen;YANG Bin;SHI Fuqiang;LIU Jimei(Institute of tropical forest,Yunnan Academy of forestry and grassland,Puwen 666102,Yunan,China;Yunnan Academy of forestry and grassland,Kunming 650201,Yunan,China;Pu′er city forestry and grassland research Institute in Yunnan Province,Pu′er 665000,Yunan,China)

机构地区：[1]云南省林业和草原科学院热带林业研究所,云南普文666102 [2]云南省林业和草原科学院,云南昆明650201 [3]普洱市林业和草原科学研究所,云南普洱665000

出　　处：《福建林业科技》2022年第1期86-89,共4页Journal of Fujian Forestry Science and Technology

基　　金：“十三五”国家重点研发计划项目(杉木高值装饰材混交模式及高效培育关键技术研究,2016YFD0600303-04)。

摘　　要：以杉木半同胞优良家系8年生子代优良单株砍伐留桩的萌条制作插穗,研究不同基质和不同浓度ABT1号对杉木扦插生根的影响。结果表明:不同基质对杉木扦插苗生根率、平均根长、平均根数均有显著影响,其中以堆沤熟后的咖啡壳+蛭石+珍珠岩(1∶1∶1)为基质,扦插苗生根率最高(86.21%)、平均生根数最多(3.83条);堆沤熟后的咖啡壳+蛭石+珍珠岩+江沙(1∶1∶1∶1)为基质,扦插苗平均根长最长(3.93 cm);不同浓度ABT1号浸泡3 h对杉木扦插苗生根率、平均根长、平均根数均有显著影响,其中以ABT1号600 mg·L^(-1)溶液浸泡处理后的杉木扦插苗生根率最高(51.26%)、平均根长最长(1.7 cm),ABT1号1000 mg·L^(-1)溶液浸泡处理后的杉木扦插苗平均根数最多(2.5条)。综合结果表明,以堆沤熟后的咖啡壳+蛭石+珍珠岩(1∶1∶1)为基质,ABT1号600 mg·L^(-1)浸泡插穗是杉木扦插生根最理想的组合。In order to elect the best combination of Cunninghamia lanceolata cuttings which were selected by excellent single plant of 8-year-old progeny of half sib families in different matrixes and concentrations of ABT1#,we took a trial to investigate the rooting characters of cuttings.The results showed that:different substrates had significant effects on rooting rate,average root length and average root number of C.lanceolata cuttings.Among them,coffee shell after composting+vermiculite+pearlite(1∶1∶1)the rooting rate was the highest(86.21%)and average rooting number was the maximum(3.83).The longest average root length of cuttings in matrix(coffee shell after composting+vermiculite+pearlite+sand=1∶1∶1∶1)was 3.93 cm.Different concentrations of ABT1#after soaking 3 hours had significant effects on rooting rate,average root length and average root number of C.lanceolata cuttings.The highest rooting rate was 51.26%and the longest average root length was 1.7cm in ABT1#of 600 mg·L^(-1),and the highest average root number was 2.5 with 1000 mg·L^(-1)ABT1#solution.Therefore,in this experiment,matrix(coffee shell after composting+vermiculite+pearlite=1∶1∶1)and 600 mg·L^(-1)ABT1#solution is the best combination for cutting and rooting of C.lanceolata.

关 键 词：杉木 扦插基质 植物生长调节剂 生根性状 

分 类 号：S791.27[农业科学—林木遗传育种] S723.1[农业科学—林学]