一、引言幼年的野黑樱(Prunus serotina Enthart)应用喷雾繁殖法使插条发根是比较简单的,但是,直接从较老的树上剪取的插条其发根力一般很低。可是,在育种计划中,常需要选择无性(繁殖)系成长的树木作为亲本砧木。目前,嫁接是成功的,但费用高,而且对育种者来说,面临着砧木和接穗的相互关系问题。因此,作者用“复壮”材料和高浓度吲?乙酸(IBA)使所选择的遗传型的插条发根。 I. INTRODUCTION Juvenile Prunus serotina Enthart is relatively simple to apply spray propagation to cuttings, but cuttings cut directly from older trees have generally low rooting power. However, in the breeding program, it is often necessary to choose asexual (reproductive) growth of trees as the parent stock. At present, grafting is successful, but costly, and for breeders it is faced with the interrelationship between rootstock and scion. Therefore, the authors used the “rejuvenating” material and high concentration of indoacetic acid (IBA) to root the selected genetic type of cuttings.