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  1. Vol. 9 No. 6, p. 710-713
     
    Received: Mar 24, 1969
    Published: Nov, 1969


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doi:10.2135/cropsci1969.0011183X000900060010x

Use of Self-fertility in the Improvement of Bromus inermis and Phleum pratense1

  1. P. N. Drolsom and
  2. E. L. Nielsen2

Abstract

Abstract

Experimental populations of Bromus inermis Leyss. and of Phleum pratense L. have been formed either with nearly self-sterile plants or with plants possessing modest levels of self-fertility. Both groups within a species originated from the same population and were submitted to the same selection pressures for agronomic features and disease resistance. Experimental synthetics based upon plants with a modest level of self-fertility have indicated some superiority in disease resistance and a possible yield advantage over combinations of self-sterile plants. Seedset data after mutual- and open-pollination suggest that self-fertile plants form more seed than self-sterile plants.

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