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This article in AJ

  1. Vol. 63 No. 3, p. 404-405
    Received: Aug 24, 1970

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Chemical Element Accumulation by Populations of Corn (Zea mays L.) Selected for High and Low Accumulation of P1

  1. D. E. Baker,
  2. F. J. Wooding and
  3. M. W. Johnson2



The objective of the investigation of which this report is a part was to identify chemical elements, organic compounds, or metabolic processes which are associated with genetically controlled P accumulation in corn (Zea mays L.).

Two populations of corn, each with subpopulations selected for high and low P in ear leaves, were produced by randomly sib mating the F2 and five and six subsequent generations of an early maturing single-crossed hybrid and a late maturing single-cross hybrid. Each tingle-cross hybrid contained homozygous inbred lines previously characterized as contributors of low and high concentrations of P to other single-cross hybrids. In ear leaves, high P was associated with significantly higher, but not substantially different, concentrations of N and B. In seedling plants, grown for three weeks in a growth chamber, high accumulation of P was associated with higher concentrations of N and significantly higher concentrations of S, Ca, Cu, and B.

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