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This article in AJ

  1. Vol. 63 No. 5, p. 803-805
    Received: Mar 29, 1971

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Differential Response of Corn Inbreds and Single Crosses to Certain Properties of an Acid Soil1

  1. J. A. Lutz,
  2. G. W. Hawkins and
  3. C. F. Genter2



Three greenhouse experiments were conducted in 1969 and 1970 in which maize (Zea mays L.) inbred lines and single crosses were grown on an untreated acid Greendale silt loam (pH 3.9) and on the same soil adjusted with pulverized dolomitic limestone to various pH levels. Plant-height measurements were made and dry-weight yields were determined 27 to 38 days after planting.

There were highly significant differences in growth among entries under highly acidic conditions. Inbred lines Connecticut 103 and Minnesota A632 grew very poorly in highly acid soil, while inbred lines Iowa B37 and Virginia 17 and two single crosses appeared to be tolerant to high acidity. There was a significant interaction between growth of entries and pH levels.

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