Poplar (Populus spp.) is one of the most important economical tree species in
temperate regions of the world. Easy propagation by cutting has made most of the selected
genotypes of poplar available for intensive plantation with large genetic gains. Critical
point for successful propagation of cutting is the development of roots. Thus, rooting
context of the cutting appeared to be a pivotal scenario in poplar vegetative propagations.
In this overview, we focus on the progress in defining the genetic, physical, chemical and
environmental factors that influences the poplar cuttings to develop adventitious roots.
These factors include genotype effect, physiological conditions of the stock plants, plant
growth regulators, temperature, rooting substrates/media as major variables for the
development of rooting events.