蒙古栎嫩枝扦插繁殖技术研究

采用完全随机区组试验设计，研究不同基质种类，植物生长调节剂种类、浓度，浸泡时间及发根农杆菌等对蒙古栎嫩枝扦插生根的影响。结果表明：泥炭土+蛭石+珍珠岩（1∶1∶1）是较理想的扦插基质；IBA 500mg/L+6-BA 2.0mg/L浸泡2h后扦插效果较好，生根率为16.67%；低浓度的NAA有利于蒙古栎嫩枝生根，高浓度则抑制生根；单独使用ABT1生根粉或将其与IBA混合使用，效果均不明显；浸泡时间为2h时插条生根效果最好，生根率为13.33%；发根农杆菌A4菌株对蒙古栎嫩枝扦插生根无明显作用。

Study on Cuttage Propagation Techniques of Quercus mongolica with Softwood Cuttings

The influences of substrate categories for cuttage propagation, types and concentration of plant growth regulator, soaking time duration, and Agrobacterium rhizogenes on the rootings of Quercus mongolica softwood cutting propagation were studied by complete random plot experiment design. The results showed that the mixed substrate of peat soil, vermiculite and pearlite (1∶1∶1) was the best. The better rooting effect was achieved by soaking the softwood cuttings in solution of 500mg/L IBA + 2.0mg/L 6-BA for 2 hours, whose rooting rate reached 1667%. The experiment showed that low concentration of NAA was conducive to rooting of Q. mongolica softwood cuttings, while high concentration of NAA inhibited the rooting. Little effect on rooting was found when ABT1 rooting powder was applied alone or mixed with IBA. 2 hours was the suitable soaking time duration, with 13.33% of rooting rate. Treatment by A.rhizogenes A4 did not have obvious promotion effect on rooting of Q.mongolica softwood cuttings.