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Crop Science Abstract -

Inbreeding and Crossing in Autotetraploid Maize1


This article in CS

  1. Vol. 7 No. 1, p. 72-73
    Received: Aug 1, 1966

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  1. C. S. Levings,
  2. J. W. Dudley and
  3. D. E. Alexander2



The effect of crossing and inbreeding was determined in autotetraploid maize for three characters, plant height, ear length, and ear weight. Rank of generation means for the three characters was in the order, double crosses > single crosses > F2 > F3 > lines. Regression analysis indicated that nearly all the variability among generation means could be accounted for by differences in level of inbreeding. Implications of these results for breeders of autotetraploid species were discussed.

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