engleski

Stability of Quality Parameters in Different Environmental Conditions

Quantitative traits are the result of genotype, environment and their interactions. Because of that it is difficult to compare values reported for the protein content of grain grown in different locations or in different years. Anyway breeding programm should focus on high protein content although generally exist the negative correlation between protein content and yield. To obtain information about the reaction of winter wheat genotypes to different environmental conditions, experiments were set up with 18 winter wheat genotypes in four replications at four locations with different soil types in two seasons. Protein content, wet gluten content and sedimentation value were analyzed. The genotype Divana had a high mean protein content accompained with a high positive interaction. The genotypes Golubica, Mihaela and Renata formed an adaptive group with moderate positive interaction and highly moderate mean for the protein content. Distribution of genotypes points in the AMMI II biplot revealed that the genotype Sana scattered closest to the origin, indicating minimal interaction of this genotype with environments. Wet gluten content ranged from 18.3 % (genotype Aida in Pozega 2009) to 39.3 % (genotype Golubica in Osijek 2010). The highest sedimentation value was obtained at location Osijek 2010 (genotypes Renata, Golubica, and Divana). Investigated quality parameters were highly correlated. This information is helpful in selecting proper genotypes for wheat breeders, growers, millers and bakers for their end products with desired quality characteristics, which should be combined with good rheological and agronomic traits.

environment; wheat; quality

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