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A cluster analysis of wild and domesticated soybean phenotypes

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Summary

Cluster analysis techniques were used to examine phenotypic variation within the USDA Soybean Germplasm Collection. This study included ten Plant Introductions each of the domesticated soybean, Glycine max (L). Merr., the ‘wild’ soybean, G. soja Sieb. & Zucc., and a disputed species, G. gracilis Skvortz. G. max and G. soja were found to be morphologically distinct entities and G. gracilis was found to be conspecific with G. max. Because G. gracilis probably represents weedy races associated with the cultivated soybean and because ‘gracilis’ phenotypes can be distinguished from G. max, the designation, G. max forma gracilis, is recommended.

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Author notes

  1. Steven L. Broich

    Present address: Department of Botany, Oregon State University, 97330, Corvallis, Oregon, USA

  2. Reid G. Palmer

    Present address: Iowa State University, SEA-AR, USDA, 50011, Ames, Iowa, USA

Authors and Affiliations

  1. Department of Agronomy, Iowa State University, 50011, Ames, Iowa, USA

    Steven L. Broich & Reid G. Palmer

Authors
  1. Steven L. Broich
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  2. Reid G. Palmer
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Additional information

Joint contribution: North Central Region, Agricultural Research, Science and Education Administration, U.S. Department of Agriculture, and Journal Paper No. J-9389 of the Iowa Agriculture and Home Economics Experiment Station, Ames, Iowa 50011; Project 2107.

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Broich, S.L., Palmer, R.G. A cluster analysis of wild and domesticated soybean phenotypes. Euphytica 29, 23–32 (1980). https://doi.org/10.1007/BF00037246

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  • DOI: https://doi.org/10.1007/BF00037246

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