Breeding for organic agriculture: the example of winter wheat in Austria

Breeding for organic agriculture (BFOA) is a strategy for a commercial breeding company based on the exploitation of the frequently observed high correlation for many traits between conventional, low input (LI) and organic agriculture (ORG). Indirect selection under LI can be useful to roughly divide the germplasm into the genotypes better adapted to high input and those better adapted to LI or ORG conditions. BFOA is an evolving process, in which two methods are currently applied: early generations are either selected following the pedigree system under LI, or grown as bulk populations on ORG fields. In the latter case the system switches to LI after individual ear selection under ORG conditions. In both methods, the first replicated yield trial is grown parallel under ORG and LI. Subsequently, the genotypes are grouped into conventional or ORG advanced trial series. The BFOA strategy allows that the larger genetic variability of both the organic and conventional gene pool can be exploited in the selection for ORG. Hitherto, seven winter wheat varieties were released in Austria after exclusive organic VCU testing.

[1]  Woldeyesus Sinebo,et al.  Environment of selection for grain yield in low fertilizer input barley , 2002 .

[2]  P. Struik,et al.  Concepts of Intrinsic Value and Integrity of Plants in Organic Plant Breeding and Propagation , 2003 .

[3]  W. H. Gabelman,et al.  Genetic Aspects of Plant Mineral Nutrition , 1990, Developments in Plant and Soil Sciences.

[4]  T. C. Reetz,et al.  Estimation of Breeding Values of Inbred Lines using Best Linear Unbiased Prediction (BLUP) and Genetic Similarities , 2006 .

[5]  S. Ceccarelli,et al.  Relationship between barley grain yield measured in low- and high-yielding environments , 2004, Euphytica.

[6]  Douglas E. Karcher,et al.  Quantifying Turfgrass Cover Using Digital Image Analysis , 2001 .

[7]  W. Jackson,et al.  Analysis and Interpretation of Factors Which Contribute to Efficiency of Nitrogen Utilization1 , 1982 .

[8]  B. Carver,et al.  Genetic analysis and selection for wheat yield in drought-stressed and irrigated environments , 2004, Euphytica.

[9]  H. Grüneberg,et al.  Introduction to quantitative genetics , 1960 .

[10]  A. Spanakakis,et al.  Performance of winter wheat cultivars under reduced nitrogen conditions , 1990 .

[11]  W. Beavis,et al.  GENOMICS AND PLANT BREEDING , 2004 .

[12]  T. Lelley,et al.  HMW glutenin subunit composition and bread making quality of Austrian grown wheats , 1997 .

[13]  D. Desclaux,et al.  Developments in breeding cereals for organic agriculture , 2008, Euphytica.

[14]  H. Piepho,et al.  Comparing the performance of cereal varieties in organic and non-organic cropping systems in different European countries , 2008, Euphytica.

[15]  T. Mccaig,et al.  Shifting undesirable correlations , 2007, Euphytica.

[16]  M. Ehrendorfer.  A regionalization of Austria's precipitation climate using principal component analysis , 1987 .

[17]  D. Neuhoff,et al.  Field evaluation and selection of winter wheat for competitiveness against weeds , 2005 .

[18]  Robin Thompson,et al.  Exploring variety - environment data using random effects AMMI models with adjustments for spatial field trend: Part 2. Applications , 2001 .

[19]  U. Koepke,et al.  Choice of cultivars in organic farming: New criteria for winter wheat ideotypes. 1. Light conditions in stands of winter wheat affected by morphological features of different varieties , 1997 .

[20]  A. Spanakakis.  Grain yield and quality characters of genotypes in F5 generation under low and high nitrogen input , 1990 .

[21]  W. Lockeretz,et al.  Are descriptions of conventional variety testing suitable for organic farming , 2000 .

[22]  J. Léon,et al.  Multiple-trait breeding values for parental selection in self-pollinating crops , 2007, Theoretical and Applied Genetics.

[23]  I. Buddenhagen.  Breeding Strategies for Stress and Disease Resistance in Developing Countries , 1983 .

[24]  M. Brancourt-Hulmel,et al.  Indirect versus direct selection of winter wheat for low-input or high-input levels , 2005 .

[25]  K. Yonezawa.  Practical implication of improving the precision of genotype assessment in selection — A theory , 1983, Euphytica.

[26]  Manjit S. Kang,et al.  GGE Biplot Analysis: A Graphical Tool for Breeders, Geneticists, and Agronomists , 2002 .

[27]  K. Eskridge,et al.  Crossover Interactions for Grain Yield in Multienvironmental Trials of Winter Wheat , 2006 .

[28]  J. Vollmann,et al.  Stability of quality traits in Austrian-grown winter wheats. , 2000 .

[29]  Etienne Duveiller,et al.  The challenges of maintaining wheat productivity: pests, diseases, and potential epidemics , 2007, Euphytica.

[30]  G. M. Paulsen,et al.  Evaluation of selection strategies for wheat adaptation across water regimes , 2004, Euphytica.

[31]  P. Struik,et al.  Organic agriculture requires process rather than product evaluation of novel breeding techniques , 2007 .