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[[File:Adventitious roots on Odontonema aka Firespike.jpg|thumb|Roots forming above ground on a cutting of ''[[Odontonema]]'', also known as firespike]]
Adventitious rooting may be a stress-avoidance acclimation for some species, driven by such inputs as [[hypoxia (environmental)|hypoxia]]<ref>{{cite journal | url=https://doi.org/10.1007%2FBF00384595 | doi=10.1007/BF00384595 | title=Ethylene-promoted adventitious rooting and development of cortical air spaces (Aerenchyma) in roots may be adaptive responses to flooding in Zea mays L | year=1979 | last1=Drew | first1=M. C. | last2=Jackson | first2=M. B. | last3=Giffard | first3=S. | journal=Planta | volume=147 | issue=1 | pages=83–88 | pmid=24310899 | s2cid=7232582 | url-access=subscription }}</ref> or nutrient deficiency. Another ecologically important function of adventitious rooting is the vegetative reproduction of tree species such as ''[[Willow|Salix]]'' and ''[[Sequoia sempervirens|Sequoia]]'' in [[riparian]] settings.<ref>{{cite journal | url=https://www.jstor.org/pss/2952507 | jstor=2952507 | title=The Ecology of Interfaces: Riparian Zones | last1=Naiman | first1=Robert J. | last2=Decamps | first2=Henri | journal=Annual Review of Ecology and Systematics | year=1997 | volume=28 | pages=621–658 | doi=10.1146/annurev.ecolsys.28.1.621 | s2cid=86570563 | url-access=subscription }}</ref>
The ability of plant stems to form adventitious roots is utilised in commercial propagation by [[Cutting (plant)|cutting]]s. Understanding of the physiological mechanisms behind adventitious rooting has allowed some progress to be made in improving the rooting of cuttings by the application of synthetic auxins as rooting powders and by the use of selective basal wounding.<ref>{{cite journal | url=https://doi.org/10.1007%2Fs11627-999-0076-z | doi=10.1007/s11627-999-0076-z | title=Review the formation of adventitious roots: New concepts, new possibilities | year=1999 | last1=De Klerk | first1=Geert-Jan | last2=Van Der Krieken | first2=Wim | last3=De Jong | first3=Joke C. | journal=In Vitro Cellular & Developmental Biology - Plant | volume=35 | issue=3 | pages=189–199 | s2cid=44027145 | url-access=subscription }}</ref> Further progress can be made in future years by applying research into other regulatory mechanisms to commercial propagation and by the comparative analysis of molecular and ecophysiological control of adventitious rooting in 'hard to root' vs. 'easy to root' species.{{cn|date=June 2024}}
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