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This article in CS

  1. Vol. 9 No. 2, p. 251-252
     
    Received: July 26, 1968


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doi:10.2135/cropsci1969.0011183X000900020045x

Lysine Content of Opaque-2 Maize Kernels having Different Phenotypes1

  1. A. V. Paez,
  2. J. L. Helm and
  3. M. S. Zuber2

Abstract

Abstract

Classification of homozygous opaque-2 kernels of maize (Zea mays L.) in segregating progenies has been done on the assumption that the phenotype of these kernels is completely opaque. Certain lines in the S2 generation derived from opaque appearing S1 parents produced two phenotypic classes: (1) entirely opaque, and (2) modified opaque-1/2 opaque : 1/2 translucent.

Lysine content of 1/2 : 1/2 kernels was not different from opaque kernels on the same ear. Likewise the lysine content of translucent and opaque fractions of the endosperm from the 1/2 : 1/2 class was not different.

High lysine corn with a high test weight and other desirable kernel characteristics may be produced by taking advantage of this opaque-2 phenotypic expression.

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