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Structuring an Efficient Organic Wheat Breeding Program

Author

Listed:
  • P. Stephen Baenziger

    () (Agronomy and Horticulture Department, University of Nebraska–Lincoln, 279 PLSH, Lincoln, NE 68583-0915, USA)

  • Ibrahim Salah

    () (Agronomy and Horticulture Department, University of Nebraska–Lincoln, 279 PLSH, Lincoln, NE 68583-0915, USA)

  • Richard S. Little

    () (Agronomy and Horticulture Department, University of Nebraska–Lincoln, 279 PLSH, Lincoln, NE 68583-0915, USA)

  • Dipak K. Santra

    () (Panhandle Research and Extension Center, University of Nebraska–Lincoln, 4502 Avenue I, Scottsbluff, NE 69361, USA)

  • Teshome Regassa

    () (Agronomy and Horticulture Department, University of Nebraska–Lincoln, 279 PLSH, Lincoln, NE 68583-0915, USA)

  • Meng Yuan Wang

    () (Agronomy and Horticulture Department, University of Nebraska–Lincoln, 279 PLSH, Lincoln, NE 68583-0915, USA)

Abstract

Our long-term goal is to develop wheat cultivars that will improve the profitability and competitiveness of organic producers in Nebraska and the Northern Great Plains. Our approach is to select in early generations for highly heritable traits that are needed for both organic and conventional production (another breeding goal), followed by a targeted organic breeding effort with testing at two organic locations (each in a different ecological region) beginning with the F 6 generation. Yield analyses from replicated trials at two organic breeding sites and 7 conventional breeding sites from F 6 through F 12 nurseries revealed, using analyses of variance, biplots, and comparisons of selected lines that it is inappropriate to use data from conventional testing for making germplasm selections for organic production. Selecting and testing lines under organic production practices in different ecological regions was also needed and cultivar selections for organic production were different than those for conventional production. Modifications to this breeding protocol may include growing early generation bulks in an organic cropping system. In the future, our selection efforts should also focus on using state-of-the-art, non-transgenic breeding technologies (genomic selection, marker-assisted breeding, and high throughput phenotyping) to synergistically improve organic and conventional wheat breeding.

Suggested Citation

  • P. Stephen Baenziger & Ibrahim Salah & Richard S. Little & Dipak K. Santra & Teshome Regassa & Meng Yuan Wang, 2011. "Structuring an Efficient Organic Wheat Breeding Program," Sustainability, MDPI, Open Access Journal, vol. 3(8), pages 1-16, August.
  • Handle: RePEc:gam:jsusta:v:3:y:2011:i:8:p:1190-1205:d:13440
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    References listed on IDEAS

    as
    1. Glaeser, Edward L. & Kahn, Matthew E., 2010. "The greenness of cities: Carbon dioxide emissions and urban development," Journal of Urban Economics, Elsevier, vol. 67(3), pages 404-418, May.
    2. Weber, Christopher L. & Matthews, H. Scott, 2008. "Quantifying the global and distributional aspects of American household carbon footprint," Ecological Economics, Elsevier, vol. 66(2-3), pages 379-391, June.
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    More about this item

    Keywords

    Triticum aestivum L.; crop improvement; genetics; organic agriculture; plant breeding; conventional agriculture;

    JEL classification:

    • Q - Agricultural and Natural Resource Economics; Environmental and Ecological Economics
    • Q0 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - General
    • Q2 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Renewable Resources and Conservation
    • Q3 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Nonrenewable Resources and Conservation
    • Q5 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics
    • Q56 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Environment and Development; Environment and Trade; Sustainability; Environmental Accounts and Accounting; Environmental Equity; Population Growth
    • O13 - Economic Development, Innovation, Technological Change, and Growth - - Economic Development - - - Agriculture; Natural Resources; Environment; Other Primary Products

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