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This article in CS

  1. Vol. 8 No. 4, p. 509-510
    Received: Feb 23, 1968

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Stomatal Chloroplasts in Alfalfa at Four Ploidy Levels1

  1. E. T. Bingham2



Diploid, triploid, tetraploid, and hexaploid alfalfa plants had 9.2, 9.4, 12.8. and 15.2 chloroplasts per pair of stomatul guard cells, respectively. Plants at the four ploidy levels could be separated into three groups as early as the seedling stage of growth. The technique could be used to screen alfalfa populations for plants with desired ploidy levels, and restrict chromosome counting to verification of selected plants.

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