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Research Article

Breaking Germination Dormancy of Texas Native Perennial Herbaceous Legumes

Dean A Dittus and James P Muir
Native Plants Journal, March 2010, 11 (1) 5-10; DOI: https://doi.org/10.2979/NPJ.2010.11.1.5
Dean A Dittus
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James P Muir
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Abstract

Seed scarification requirements to improve initial germination in perennial herbaceous native legumes may vary among species. Mechanical abrasion (0, 5, 10, and 20 s) and hot water (0, 5, 10, and 15 min) treatments were tested as means for improving seed germination in the Fabaceae species prairie acacia (Acacia angustissima (Mill.) Kuntze var. hirta (Nutt.) B.L. Rob.), panicled tick-clover (Desmodium paniculatum (L.) DC.), and tall bush-clover (Lespedeza stuevei Nutt.), which have potential for commercial native seed mixes in the southern Great Plains. All durations of abrasion and one minute in hot water increased germination rates of mechanically harvested prairie acacia. Hand-harvested tall bush-clover germination responded positively to one second of abrasion but was sensitive to seed damage at longer durations. Nonscarified (control) hand-harvested panicled tick-clover seed germination was 94% and did not respond positively to scarification. Results indicate that the need and best method for seed scarification vary among native perennial herbaceous legume species.

  • seed scarification
  • hardseed
  • Fabaceae
  • prairie acacia
  • panicled tick-clover
  • tall bush-clover
  • Acacia angustissima var. hirta
  • Desmodium paniculatum
  • Lespedeza stuevei
NOMENCLATURE
  • USDA NRCS (2009)

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Native Plants Journal: 11 (1)
Native Plants Journal
Vol. 11, Issue 1
20 Mar 2010
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Breaking Germination Dormancy of Texas Native Perennial Herbaceous Legumes
Dean A Dittus, James P Muir
Native Plants Journal Mar 2010, 11 (1) 5-10; DOI: 10.2979/NPJ.2010.11.1.5

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Breaking Germination Dormancy of Texas Native Perennial Herbaceous Legumes
Dean A Dittus, James P Muir
Native Plants Journal Mar 2010, 11 (1) 5-10; DOI: 10.2979/NPJ.2010.11.1.5
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  • Challenges to developing native legume seed supplies: the Texas experience as a case study
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Keywords

  • seed scarification
  • hardseed
  • Fabaceae
  • prairie acacia
  • panicled tick-clover
  • tall bush-clover
  • Acacia angustissima var. hirta
  • Desmodium paniculatum
  • Lespedeza stuevei
  • USDA NRCS (2009)
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