Adventitious rooting of mature Cycas micronesica K.D. Hill (Cycadales: Cycadaceae) tree stems reveals moderate success for salvage of an endangered cycad

Adventitious rooting of mature Cycas micronesica K.D. Hill (Cycadales: Cycadaceae) tree stems reveals moderate success for salvage of an endangered cycad

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Mature Cycas micronesica trees were among the forest trees that were destined to be removed from a 2012 construction site in northern Guam.Forty-nine of these trees were cut at the base and transported to nursery conditions to determine if adventitious root development could be Serving Board stimulated as a means of saving the trees.Fungicide and auxin were applied to the base of each stem, and perlite was used as the container medium.A nursery maintained by an experienced cycad horticulturist yielded 41% survival, but half of the rooted plants exhibited severe stem dieback.

A nursery maintained by general plant nursery specialists without cycad experience resulted in 100% mortality.If numerous caveats are acknowledged, whole-tree stem cuttings may yield moderate success for saving C.micronesica trees from Dual Oven Range construction sites when adequate resources are appropriated to support the nursery phase with experienced cycad biologists.