, Volume 24, Issue 3, pp 613–623 | Cite as

An ideotype of maize

  • J. J. Mock
  • R. B. Pearce


We have proposed breeding a maize (Zea mays L.) ideotype that will maximally utilize an optimum production environment. This environment should include: a) adequate moisture; b) favorable temperatures throughout the growing season; c) adequate fertility; d) high plant densities; e) narrow row spacings; and f) early planting dates. The maize ideotype that should produce optimally when grown in such an environment would be characterized by: a) stiff, vertically-oriented leaves above the ear (leaves below the ear should be horizontally oriented); b) maximum photosynthetic efficiency; c) efficient conversion of photosynthate to grain; d) short interval between pollen shed and silkemergence; e) ear-shoot prolificacy; f) small tassel size; g) photoperiod insensitivity; h) cold-tolerance in germinating seeds and young seedlings (for genotypes grown in areas where early-planting would require planting in cold, wet soils); i) as long a grain-filling period as practically possible; and j) slow leaf senescence.


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Copyright information

© H. Veenman En Zonen B.V. 1975

Authors and Affiliations

  • J. J. Mock
    • 1
  • R. B. Pearce
    • 1
  1. 1.Department of AgronomyIowa State UniversityAmesUSA

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