Comparison of quality parameters of wheat varieties with different breeding origin under organic and low-input conventional conditions

Marianna Rakszegi, Péter Mikó, Franziska Löschenberger, Jürg Hiltbrunner, Rosalie Aebi, Samuel Knapp, Karolina Tremmel-Bede, Mária Megyeri, Géza Kovács, Márta Molnár-Láng, Gyula Vida, László Láng (+1 others)
2016 Journal of Cereal Science  
The processing quality of 37 wheat varieties grown in Hungary and Austria (2011-2013) were assessed under organic and conventional low input management. The varieties studied were developed using three breeding strategies (conventional, organic and their combination: BFOA). The aim was to evaluate the effect of the field management and to assess the performance of varieties developed using different breeding methods, based on their quality traits under different managements. Furthermore,
more » ... ies were identified that could characterize wheat quality and be used effectively for selection under both types of growing conditions. Strong year and genotype effects were found for all the quality traits (protein, starch, gluten, GI, Zeleny, Farinograph water absorption, development time, stability and quality number, falling number, flour yield, hardness index) of the studied varieties, while the effect of the management was significant for the physical properties (test weight, thousand-kernel weight, hardness) and gluten quality characters (gluten spread, GI, dough stability) of the grain. The standard deviation of the gluten quality traits characterized the differences between the breeding 3 strategies. It proved possible to pre select organic varieties for quality traits with high broad-sense heritability under conventional growing conditions, but direct selection in organic fields is suggested for gluten quality characters. Abbreviations : BFOA 'Breeding For Organic Agriculture': method used for selection, involving conventional selection up to F5 and organic selection from the F6 generation BLUE Best Linear Unbiased Estimators C Country CONV Varieties bred conventionally in conventional fields CV Coefficient of Variation 4 E Environment G Genotype LI Conventional low input field M Management O Organic field ORG Varieties bred in organic fields REML REstricted Maximum Likelihood algorithm: estimates variance parameters in linear mixed models TKW Thousand-Kernel Weight TW Test Weight UPP% Quantity of Unextractable Polymeric Protein as a % Y Year
doi:10.1016/j.jcs.2016.04.006 fatcat:garfw3ikrbcezcpbhzkg4m6sz4