Plant Soil Environ., 2007, 53(3):105-112 | DOI: 10.17221/2224-PSE

Yield and quality of grain amaranth (Amaranthus sp.) in Eastern Austria

D.M. Gimplinger1,*, G. Dobos2, R. Schönlechner3, H.-P. Kaul1
1 Department of Applied Plant Sciences and Plant Biotechnology, University of Natural Resources and Applied Life Sciences, Vienna, Austria
2 Institute for Applied Botany, University of Veterinary Medicine, Vienna, Austria
3 Department of Food Sciences and Technology, University of Natural Resources and Applied Life Sciences, Vienna, Austria

The introduction of a new crop requires adapted genotypes as well as optimum crop management practices. This study was conducted to determine the optimum crop density of adapted grain amaranth genotypes in the Pannonian region of Eastern Austria. The genotypes Neuer Typ (A. hypochondriacus), Mittlerer Typ (A. hypochondriacus) and Amar (A. cruentus) were established at plant densities of 8, 17 and 35 plants/m2 in 2002 and 2003. Average hand-harvested yields ranged from 2200 to 3000 kg/ha without significant genotypic differences. Genotypes differed in thousand seed weight (0.55-1.04 g), time from sowing to harvest (97-130 days), grain water content at harvest (24-38%), microbial infestation of air-dried grain (0.2-118.6 cfu × 106/g), germination (29-79%) and grain composition. Grain contents fell within the following ranges: crude protein 15.2-18.6%, crude fat 5.4-8.6%, crude fibre 3.5-4.2%, ash 2.7-3.2%, and carbohydrates 66.7-72.7%. High grain water contents involved stronger microbial infestation and reduced germination. Crop density affected neither grain yield nor grain quality.

Keywords: Amaranthus; genotype; plant density; grain yield; water content; thousand seed weight; chemical composition; microbial infestation; germination

Published: March 31, 2007  Show citation

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Gimplinger DM, Dobos G, Schönlechner R, Kaul H-P. Yield and quality of grain amaranth (Amaranthus sp.) in Eastern Austria. Plant Soil Environ. 2007;53(3):105-112. doi: 10.17221/2224-PSE.
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