Comparative evaluation of the yield and qualitative traits of hull-less and hulled barley
2005
Belicka, I., State Stende Plant Breeding Station, Dizstende, Talsu reg. (Latvia) | Bleidere, M., State Stende Plant Breeding Station, Dizstende, Talsu reg. (Latvia)
Barley grain is used mainly as a source of energy and concentrated nutrients for all classes of livestock. The aim of the investigation was to evaluate seven hull-less barley varieties and lines - 'MC Gwire', 'Gainer' (Canada), "KM-2084", "KM-2045", "KM-2001/2" (the Czech Republic), "L-302" (Latvia), "SW-1291" (Sweden) to grain yield and its quality in comparison with two feed hulled varieties - 'Linga' (check variety) and 'Klinta'. Field experiments were carried out at the Research and Study Farm "Vecauce" of the Latvia University of Agriculture (2003) and at the State Stende Plant Breeding station (2003 and 2004). Average yield of hull-less barley was from 4.47 t haE-1 ("L-302") to 5.86 t haE-1 ('Gainer') that was from 78.1 to 102.4% from the yield of hulled variety 'Linga' (5.72 t haE-1). Lines "L-302" and "KM 2084" had the highest crude protein content (respectively 163 and 144 g kgE-1), nevertheless the crude protein yield of these hull-less varieties didn't exceed the check variety 'Linga'. Hull-less varieties, compared with hulled barley varieties, had a reduced fibre content (22.9-29.2 g kgE-1, 'Linga' - 54.3 g kgE-1) and increased starch content (626-662 g kgE-1, 'Linga' - 603 g kgE-1). The portion of essential amino acids in protein were higher in hull-less genotypes with medium protein content.
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