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  1. No Access

    Article

    Variation in the ribosomal DNA intergenic spacer of a maize population mass-selected for high grain yield

    Variation in the intergenic spacer of ribosomal DNA (rDNA) was detected among individual plants of the open-pollinated maize variety ‘Hays Golden’ and populations derived from this variety. rDNA intergenic spa...

    T. R. Rocheford, J. C. Osterman, C. O. Gardner in Theoretical and Applied Genetics (1990)

  2. No Access

    Article

    Predicted and realized grain yield responses to full-sib family selection in CIMMYT maize (Zea mays L.) populations

    The maize (Zea mays L.) improvement program of the International Maize and Wheat Improvement Center (CIMMYT) develops broad-based maize populations and, until recently, improved all of them through full-sib famil...

    J. Crossa, C. O. Gardner in Theoretical and Applied Genetics (1989)

  3. No Access

    Article

    Heterosis among populations of maize (Zea mays L.) with different levels of exotic germplasm

    Thirteen maize (Zea mays L.) populations including five adapted, five adapted x exotic, two composites of adapted and exotic, and one exotic selected for adaptability were crossed in a diallel mating system. The ...

    J. Crossa, C. O. Gardner, R. F. Mumm in Theoretical and Applied Genetics (1987)

  4. No Access

    Article

    Allozyme polymorphisms within and among open-pollinated and adapted exotic populations of maize

    Twelve U.S. Corn Belt open-pollinated and five adapted exotic populations of maize (Zea mays L.) were assayed for allozyme (allele) variation at 13 enzyme marker loci. Extensive allozyme variability was observed ...

    A. L. Kahler, A. R. Hallauer, C. O. Gardner in Theoretical and Applied Genetics (1986)

  5. No Access

    Article

    Comparison of full and half-sib reciprocal recurrent selection

    Full and half-sib reciprocal recurrent selection (RRS) were compared algebraically and with computer simulation. The relative performance of the two schemes depended on the selection intensity and the environm...

    L. P. Jones, W. A. Compton, C. O. Gardner in Theoretical and Applied Genetics (1971)