engleski

SEED QUALITY OF SOYBEAN CULTIVARS SUITABLE FOR GROWING IN EUROPE

Given the potential of soybean (Glycine max L. Merr.) as a staple crop for food, feed and pharmaceutical industry, improving the genetic basis of seed quality is one of the main breeding aims on a global scale. The aim of this three-year trial (2010-2012) was to give insight into the soybean seed quality parameters of 22 cultivars suitable for growing in Europe. Field trials were set up as a randomised complete block design with two replicates at the Agricultural Institute Osijek (Osijek, Croatia). The determined seed quality parameters were: protein and oil content, saturated fatty acid content, monounsaturated fatty acid content, polyunsaturated fatty acid content, total saccharide content, total oligosaccharide content, total isoflavone content. Soybean oil and protein contents are the most important seed quality parameters. The usage and value of oil are mainly determined by its fatty acid composition, which affects physical, chemical and nutritional properties. Saccharide composition affects digestibility and nutritional value of soybean seed, affecting the taste and usability while isoflavones are nutraceuticals with many different medical benefits, important for the functional food market and pharmaceutical industry. The results indicate the variability between genotypes for all tested parameters while the influence of environmental conditions was not significant only for total saccharides. The obtained results should be beneficial in determining and planning future breeding strategies, thus enhancing the added value properties of final soybean products for industry and end consumers, making it an integral part of sustainable production.

SOYBEAN, SEED QUALITY, BREEDING, VARIABILITY

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