Grain quality of the pseudocereals buckwheat (Fagopyrum esculentum Moench), quinoa (Chenopodium quinoa Willd.) and amaranth (Amaranthus hypochondriacus L. x A-hybridus L.) in relation to growing conditions

Abstract

An introductory survey summarizes traditional and actual products made of buckwheat, quinoa and amaranth grains. Additionally a table about the range of grain ingredients is briefly discussed. The following investigations were designed, to answer the question: how far do temperate climatic conditions allow, to produce marketable grain yields! Grain yields harvested in a two years field experiment were analyzed concerning external quality traits (1000 grain weights, sieve fractions and grain colours) and internal quality traits (ingredients, fatty acids). The factorial field experiments included varieties of each species and sowing densities combined with N-rates.Besides general differences between the varieties quality traits were more affected by the years as related to the production measures. Not all traits reached the expected levels completely. Especially sieve fractions and grain colours should be improved. In consideration of these deficiencies marketable grain yields can be produced even under temperate climatic conditions, further research provided. Predominantly investigations should include the effects of fungal diseases of the inflorescences on grain quality traits.