基质、预处理及植物生长调节剂对纳塔栎嫩枝扦插的影响  

Effects of Different Substrates,Pretreatment and Plant Growth Regulator to the Softwood Cutting of Quercus nuttallii

作　　者：刘博[1] 谭军[1] 王昊[1] 金倩[1] 蔡卫佳[1] 阮倩倩[1] 刘旭[1] 罗桂杰[1] 陈芬[1] 沙建国[1] 

机构地区：[1]江苏省农业科学院宿迁农科所,江苏宿迁223800

出　　处：《金陵科技学院学报》2017年第4期75-79,共5页Journal of Jinling Institute of Technology

基　　金：江苏省林业科技创新与推广项目(LYKJ[2017]38);宿迁市农业科技自主创新项目(SQCX2016-05);宿迁市科技支撑计划(L201614)

摘　　要：以2年生纳塔栎优质苗木当年生半木质化枝条为材料,选取不同部位枝条作为插穗,研究不同基质、预处理、植物生长调节剂等对纳塔栎嫩枝扦插生根的效果。结果表明:2年生纳塔栎母株当年生半木质化枝条中部为最佳扦插插穗;泥炭土+蛭石+珍珠岩体积比为1∶1∶1作为育苗基质扦插效果最好;1 000 mg·kg-1KMnO4浸泡插穗4h,能明显提高纳塔栎的生根效果;500mg·kg-1 ABT6生根粉浸泡插穗2h,生根效果最佳,愈合率、生根率、平均根数、平均根长分别为:45.8%、39.4%、2.5条、3.21cm。Two year old high quality seedlings of Quercus Nattallii were used as materials for the first year old semi-woody branches and different parts of the branches were selected as cuttings. By the test of different substrate, pretreatment, exogenous hormone treatment, Quercus nuttallii softwood cuttings＇ rooting effect were studied. The results showed as follows： it is the best to use the middle part of the half-lignified branches of 2-year old Quercus nuttallii trees as the cuttings; the best cutting substrate is peat soil, vermiculite and pearlite with the volume ratio of 1 ： 1 ： 1; it could get significantly improving of the rooting effect after we soaked cuttings with 1 000 mg · kg-1 KMnO4 for 4 hours. The best rooting effect was obtained when the cuttings were treated with 500 mg · kg-1 ABT6 rooting powder for 2 hours. The callus rate, rooting rate, average root number and average root length were 45.8%, 39.4%, 2.5 and 3.21 cm.

关 键 词：纳塔栎 扦插 基质 预处理 植物生长调节剂 

分 类 号：S792.18[农业科学—林木遗传育种]