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This article in CS

  1. Vol. 19 No. 2, p. 216-218
    Received: Mar 18, 1978

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Processing Potential for Diallel Hybrids of High-Sugar Corn1

  1. R. H. Andrew and
  2. J. H. von Elbe2



Numerous genes acting alone or in various combinations influence the endosperm composition of corn (Zea mays L.). Hybrids carrying the sh-2 gene have found some acceptance by home gardeners because of their high level and slow rate of loss of moisture and sugars. This research was planned to determine the potential use for processing of sh-1 sh-2 germplasm. To this end, sh-1 sh-2 lines were combined in a diallel series of single hybrids and evaluated in field and canning trials. The sh-1 sh-2 hybrids ranked above standard sweet corn (sh-1 sh-2) for color and sweetness, approximately the same for flavor, and below for tenderness. Their wide range in color following processing emphasizes the need for specific cooking procedures on an individual hybrid basis. Highly significant GCA and SCA mean squares point to the importance of both additive and nonadditive gene action for the attributes studied. It is desirable to incorporate the sh-1 sh-2 gene combination into a wide spectrum of adapted germplasm in a search for other modifiers which will increase their processing potential, provided the germination problems of the shrunken-2 phenotype can be overcome.

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