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This article in CS

  1. Vol. 17 No. 4, p. 591-593
     
    Received: Sept 18, 1976
    Published: July, 1977


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doi:10.2135/cropsci1977.0011183X001700040027x

Genetic and Environmental Effects on the Grain Protein Content in Wheat1

  1. Kouame Miezan,
  2. E. G. Heyne and
  3. K. F. Finney2

Abstract

Abstract

The effects of environmental and genetic factors on grain protein content of wheat (Triticum aestivum L. em Thell.) were tested in two 2-year experiments, the first at two locations, and the second at 10 locations. Five selections from the cross ‘Kaw’/‘Atlas 50’ and seven from Kaw/ ‘Atlas 66’ were studied. The 12 selections were genetically higher in grain protein than the control, Kaw. Nitrogen applied at blooming time increased protein content in all environments. A significant location-genotype interaction occurred because some locations had greater increases than others. Nitrogen applied at blooming did not affect ripening, yield, or test weight. Statistical analyses confirmed the strong influence of environment on grain protein content of wheat. However, some of the high protein genotypes yielded consistently higher and had more protein than the control in all environments.

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