Picconia azorica (Tutin) Knobl. (Oleaceae), commonly named “pau-branco”, is an endangered tree endemic to the Azores. Vegetative propagation may be important for the preservation of this species, particularly in depauperate populations, with low seed set. The objective of this study was to evaluate effective techniques for the vegetative propagation of P. azorica by rooting of stem cuttings or by air layering. ...
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