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Research ArticleRefereed Research

Vegetative propagation of putatively laurel wilt-resistant redbay (Persea borbonia)

Marc A Hughes and Jason A Smith
Native Plants Journal, March 2014, 15 (1) 42-50; DOI: https://doi.org/10.3368/npj.15.1.42
Marc A Hughes
Postdoctoral Researcher , University of Florida, Newins-Ziegler Hall, PO Box 110410, Gainesville, FL 32611-0410
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Jason A Smith
Associate Professor, University of Florida, Newins-Ziegler Hall, PO Box 110410, Gainesville, FL 32611-0410
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Abstract

Vegetative propagation experiments were conducted on redbay (Persea borbonia (L.) Spreng. [Lauraceae]) to evaluate disease resistance and to conserve germplasm. We developed a primary framework for redbay vegetative propagation to address limitations of long-term seed storage and the need to preserve and screen putatively laurel wilt-resistant redbays. Healthy/asymptomatic redbay individuals were chosen from 6 field sites with high levels of disease pressure and mortality. These individuals were exposed to various IBA forms, bottom heat, and rooting media mixtures. The use of IBA was required for rooting redbay; however, we found no significant differences among IBA type or bottom heat on rooting success. Parent tree provenance significantly affected root length. A 3:1 (v:v) perlite:vermiculite mixture yielded significantly more cuttings with roots and more roots per cutting. We observed an average rooting percentage of 20 to 37%, and ramets that were still alive after 7 mo averaged 46 to 72% rooting across treatments. Therefore, we recommend treating with a 0.3% IBA gel and striking them in 3:1 (v:v) perlite:vermiculite without bottom heat under intermittent mist.

MAHughesJASmith 2014.

Vegetative propagation of putatively laurel wilt-resistant redbay (Persea borbonia)

. Native Plants Journal 15( 1): 42- 50.

  • Xyleborus glabratus
  • Raffaelea lauricola
  • Lauraceae
  • forest pathogens
  • restoration
  • rooting media
NOMENCLATURE:
  • Plants: USDA NRCS (2013)
  • Foreign plants: Tropicos (2013)
  • Fungi: Index Fungorum (2013)
  • Insects: EDIS (2013)
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Native Plants Journal: 15 (1)
Native Plants Journal
Vol. 15, Issue 1
20 Mar 2014
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Vegetative propagation of putatively laurel wilt-resistant redbay (Persea borbonia)
Marc A Hughes, Jason A Smith
Native Plants Journal Mar 2014, 15 (1) 42-50; DOI: 10.3368/npj.15.1.42

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Vegetative propagation of putatively laurel wilt-resistant redbay (Persea borbonia)
Marc A Hughes, Jason A Smith
Native Plants Journal Mar 2014, 15 (1) 42-50; DOI: 10.3368/npj.15.1.42
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Keywords

  • Xyleborus glabratus
  • Raffaelea lauricola
  • Lauraceae
  • forest pathogens
  • restoration
  • rooting media
  • Plants: USDA NRCS (2013)
  • Foreign plants: Tropicos (2013)
  • Fungi: Index Fungorum (2013)
  • Insects: EDIS (2013)
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