Malting quality as affected by barley breeding (1944–1998) in Argentina |
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Authors: | VS Passarella R Savin LG Abeledo GA Slafer |
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Institution: | 1. Departamento de Producción Vegetal, Argentina 2. IFEVA, Facultad de Agronomía, Universidad de Buenos Aires, Av. San Martín, 4453 (C1417DSE), Buenos Aires, Argentina
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Abstract: | Eight malting cultivars of barley released from 1944 to 1998 in Argentina were sown in two growing seasons to evaluate the
effect of breeding on malting quality. An adequate grain weight and screening percentage as in the older varieties were maintained
in the recent releases. The grain protein concentration decreased in the modern cultivars together with a decreased in C-and
an increased in B-hordein. These results were achieved without a clear trend through the time. Malt extract was increased
by 0.054% per year in the period analysed and the most important contribution in the quality improvement was the introduction
of Beka (known as a high quality cultivar released in Europe) in1966. There was not a clear trend in the breeding process
to obtain more stability between years in the quality attributes, at least, in the characteristics analysed in the present
study. Conversely, malt extract was less variable and this tendency was observed through the years of release of the cultivars.
This revised version was published online in July 2006 with corrections to the Cover Date. |
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Keywords: | barley breeding grain protein percentage malt extract malting quality |
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