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Variability of seed protein composition of hulless mutants of spring barley (Hordeum vulgare L.)

100%

Kapala A., Rybinski W.

Journal of Applied Genetics

1995

vol. 36

issue 2

129-135

Nutritional value of protein in 146 mutants of hulles spring barley was estimated.Evaluation of protein quality was based on the portion of a relative content of protein fractions with different amino acid composition and, therefore, with different nutritional value.The ratio of albumins, globulins and gluteins to hordein, determing nutritional value of protein in the initial genotype was 1.1; in mutants it was within the range of 0.9-1.5. Several mutants with a high protein content and good nutritional value have been distinguished.

Efficiency of nitrogen and phosphorus utilization in progenies of factorial crosses between European and exotic cultivars of spring barley (Hordeum vulgare L.)

72%

Gorny A. G., Ratajczak D.

Journal of Applied Genetics

2008

vol. 49

issue 4

349-355

Previous observations suggested that some landraces, primitive cultivars and other barleys originating from the harsh conditions of the Middle East, North Africa and Tibet might serve as interesting sources of adaptation to low-input agriculture. This opportunity was verified in field experiments performed under reduced rates of nitrogen (N) and phosphorus (P) fertilization. Genetic variation in major components of the efficiency of N and P utilization was examined among F2 and F3 generations of crosses between four European female and seven exotic male lines of spring barley. Preponderance of general combining ability effects was found for most efficiency components, suggesting that the characters are mainly controlled by additive gene action. Non-additive effects appeared to be less or non-significant. Under reduced fertilization, hybrid progenies of the Syrian cv. M.Dingo/D.Alla 106 and the Moroccan cv. Moroc 9-75 exhibit an enhanced yielding and the highest capacity to utilize N and P efficiently in grain mass formation. The results proved that the exotic barleys appear to be particularly useful for breeding programs aiming at improved barley adaptation to less favourable fertilization regimes.

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2 Journal of Applied Genetics

1 2008

1 1995

1 Gorny A. G.

1 Kapala A.

1 Ratajczak D.

1 Rybinski W.

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Variability of seed protein composition of hulless mutants of spring barley (Hordeum vulgare L.)

Efficiency of nitrogen and phosphorus utilization in progenies of factorial crosses between European and exotic cultivars of spring barley (Hordeum vulgare L.)