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Book of Abstracts First Legume Society Conference 2013: A Legume Odyssey Novi Sad, Serbia, 9-11 May 2013
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Seed composition, genetic variability and heritability of important seed ingredients of
Lupinus angustifolius L.
Helene Beyer 1 , Gisela Jansen 1 , Hans-Ulrich Jürgens 1 , Frank Ordon 2
1 Julius Kühn Institute, Institute of Resistance Research and Stress Tolerance, Groß Lüsewitz, Germany
2 Julius Kühn Institute, Institute of Resistance Research and Stress Tolerance, Quedlinburg, Germany
In order to get information on the usability of narrow-leafed sweet lupins (L. angustifolius) in
human nutrition, the seed composition of new varieties was analysed. Based on these results,
genetic parameters like variability, heritability and genetic advance of important seed quality traits
were estimated. To achieve this, 42 new genotypes and 8 German cultivars of L.angustifolius,
grown in randomized block design with two replications in four different locations during 2010
and 2011, were characterized according to their contents of protein, soluble carbohydrates, oil,
non-starch polysaccharides, alkaloids, as well as fatty acids and amino acids. The results showed
that there is not much variability within the German breeding lines concerning the content of
sugar, non-starch polysaccharides, oil and protein, but large variation of the alkaloid content was
detected, ranging from 52.4 to 1482.2 µg/g dry matter. The alkaloid content showed the highest
heritability of 96.1%, indicating that this character can be effectively improved. The lowest
heritability was observed for protein content (68.4%) and oil content (77.8%). The genotypic
coefficient of variation was near to the phenotypic coefficient of variation for all characters,
suggesting a highly significant effect of genotype on phenotypic expression with only a small
effect of environment. However, it has to be taken into account that in the set analysed only little
variation was found, limiting genetic improvement based on this set of genotypes.
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