Estimation of genetic variability of yielding traits and physical properties of seeds of spring barley (Hordeum vulgare L.) mutants
W. Rybiński 1
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Institute of Plant Genetics, Polish Academy of Sciences, Strzeszyńska 34, 60-479 Poznań, Poland
Institute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4, 20-290 Lublin 27, Poland
Int. Agrophys. 2006, 20(3): 219–227
The material for performed studies comprised 19 hull-less barley mutants, their initial form 1N/86, as well as six hul- led forms – three fodder and three malting cultivars. In field trial the mutants and their initial form were analysed for yield structure traits, and for all objects for geometric properties of grains and their resistance to squashing as expressed by stress, strain, and energy. As compared to the initial form, the mutants were characterized by broader genetic variability of yield structure. It allowed to select a few mutants with higher grain yield per plot as well as higher yield structure parameters. A broad variation was also observed for geometric properties of grains and their resistance to squashing. For those traits great differences were noticed not only among the hull-less mutants but also among the hulled cultivars. Based on obtained results a comparison between both groups of barley forms was performed.