1. Fahn A. Plant Anatomy. 4th ed. Oxford: Pergamon Press; 1990.
2. Hartmann HT, Kester DE, Davies FT. Plant propagation: principles and practices. 5th ed. Englewood Cliffs: Prentice-Hall; 1990.
3. Ricci A, Rolli E, Brunoni F, Dramis L, Sacco E, Fattorini L, et al. 1,3-di(benzo[d]oxazol-5-yl) urea acts as either adventitious rooting adjuvant or xylogenesis enhancer in carob and pine microcuttings depending on the presence/absence of exogenous indole-3-butyric acid. PCTOC. 2016;126:411–27.
4. Simon S, Petrášek J. Why plants need more than one type of auxin. Plant Sci. 2011;180:454–60.
5. Altamura MM, Falasca G. Adventitious rooting in model plants and in in vitro systems: an integrated molecular and cytohistological approach. In: Niemi K, Scagel C, editors. Adventitious root formation of forest trees and horticultural plants-from genes to applications. Kerala: Research Signpost; 2009. p. 123–44.