Euphytica

, Volume 141, Issue 3, pp 201–208 | Cite as

Maize commercial hybrids compared to improved population hybrids for grain yield and agronomic performance

Article

Abstract

Improved maize (Zea mays L.) populations and population hybrids can both be profitable alternatives to commercial single-cross hybrids as well as good elite sources of diverse inbred lines. The objective of this research was to compare grain yield and agronomic performance between early maturing maize population hybrids and current early maturing commercial single-cross hybrids. This is a consequence of our research program targeted at identifying alternative heterotic patterns for the northern Corn Belt. Improved maize populations and population hybrids (S0 generations) were evaluated in experiments arranged in randomized complete block and partially balanced lattice designs across 29 environments. Grain yield potential of population hybrids was optimally expressed under irrigated conditions. Data across environments showed that 20% of the population hybrids evaluated were not different (P ≤ 0.05) from at least one of the commercial single-cross hybrids for grain yield performance, root lodging, and stalk lodging percentages. The average mid-parent heterosis value across population hybrids from different geographic regions was 20.4% with negative estimates observed in only two population hybrids. Breeding efforts toward elite populations and population hybrids have demonstrated that germplasm improvement is extremely valuable and deserves public funding. These efforts should be supported in order to enable the development of elite sources of diverse inbred lines and the development of improved population hybrids for specific markets (e.g., organic) to increase producer options. Public maize breeding programs utilizing recurrent selection methods for germplasm improvement could address the need. These programs, however, should incorporate extensive testing of population hybrids.

Keywords

germplasm improvement grain yield maize population hybrids 

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References

  1. Baker, R., 1984. Some of the open-pollinated varieties that contributed the most to modern hybrid corn. Ill. Corn Breeder’s School 20: 1–19.Google Scholar
  2. Beal, W.J., 1878. Report of Michigan State Board Agr 17: 445–447.Google Scholar
  3. Carmer, S.G. & M.R. Swanson, 1971. Detection of differences between means: A Monte Carlo study of five pairwise multiple comparison procedures. Agron J 63: 940–945.Google Scholar
  4. Carena, M.J. & H.Z. Cross, 2003. Plant density and maize germplasm improvement in the northern Corn Belt. Maydica 48: 105–111.Google Scholar
  5. Carena, M.J. & A.R. Hallauer, 2001a. Response to inbred progeny selection in Leaming and Midland Yellow Dent maize populations. Maydica 46: 1–10.Google Scholar
  6. Carena, M.J. & A.R. Hallauer, 2001b. Expression of heterosis in Leaming and Midland Corn Belt Dent populations. J Iowa Acad Sci 108: 73–78.Google Scholar
  7. Collins, G.N., 1910. The value of first generation hybrids in corn. U.S. Dept Bureau Plant Ind Bull 191.Google Scholar
  8. Cross, H.Z., 1983. Registration of NDSAB and NDSF maize germplasm. Crop Sci 23: 1227.Google Scholar
  9. Cross, H.Z., 1984. Registration of NDSG(MS)C5, NDSC(FS)C1, and NDSD(FS)C1 maize germplasm. Crop Sci 24: 1217.Google Scholar
  10. Cross, H.Z., 1988. Registration of NDSCD, NDSK(FR)C1, and NDSL(FR)C1 maize germplasms. Crop Sci. 28: 201–202.Google Scholar
  11. Cross, H.Z. & D. W. Wanner, 1991. Registration of NDSAB(MS)C8(LM)C3, NDSD(FS)C1(LM)C4, and NDSM maize germplasms. Crop Sci 31: 239.Google Scholar
  12. Darrah, L.L. & L.H. Penny, 1975. Inbred line extraction from improved breeding populations. E Afr Agric For J 41: 1–8.Google Scholar
  13. Darrah, L.L., S.A. Eberhart & L.H. Penny, 1972. A maize breeding method study in Kenya. Crop Sci 12: 605–608.Google Scholar
  14. East, E.M., 1908. Inbreeding in corn. Ann Rept Conn Agr Expt Sta 1907–08: 419–428.Google Scholar
  15. East, E.M. & H.K. Hayes, 1911. Inheritance in corn. Conn. Agr Expt Sta Bull 167.Google Scholar
  16. Gardner, C.O. & S.A. Eberhart, 1966. Analysis and interpretation of the variety cross diallel and related populations. Biometrics 22:439–452.PubMedGoogle Scholar
  17. Hallauer, A.R. & J.B. Miranda, 1988. Quantitative genetics in maize breeding. 2nd ed. Iowa State University Press, Ames, IA.Google Scholar
  18. Hallauer, A.R., W.A. Russell & K.R. Lamkey, 1988. Corn breeding. In: G.F. Sprague and J.W. Dudley (Eds.). Corn and Corn Improvement. Am Soc of Agron, Madison, WI.Google Scholar
  19. Hayes, H.K., 1956. I saw hybrid corn develop. Annu Corn Sorghum Res Conf Proc 11: 48–55.Google Scholar
  20. Kauffmann, K.D., C.W. Crum & M.F. Lindsey, 1982. Exotic germplasm in a corn breeding program. III. Corn Breeder’s School 18: 6–39.Google Scholar
  21. Shull, G.H. 1908. The composition of a field of maize. Rep Am Breeders’ Assoc 4: 296–301.Google Scholar
  22. Tollenaar, M., 2000. Genetic gain in corn hybrids from the northern and central Corn Belt. Annu Corn Sorghum Res Conf Proc 55: 53–62.Google Scholar
  23. Tsotsis, B., 1972. Objectives of industry breeders to make efficient and significant advances in the future. Annu Corn Sorghum Res Conf Proc 27: 93–107.Google Scholar
  24. University of Guelph, 2002. Crop Science Department, Ontario, Agricultural College, Canada. Maize populations [Online]. Available at: Corn breeding and genetics homepage http://www.plant.uoguelph.ca/research/corn_breeding/Populations2 (updated 9 Jan., 2002).

Copyright information

© Springer Science + Business Media, Inc. 2005

Authors and Affiliations

  1. 1.Department of Plant SciencesNorth Dakota State Univ.Fargo

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