Changes in spring barley genetic resources during one hundred years of our breeding
2005
Kraic, J.(Vyskumny ustav rastlinnej vyroby, Piestany (Slovak Republic) | Benkova, M.Vyskumny ustav rastlinnej vyroby, Piestany (Slovak Republic))
Trends in diversity of morphological, agronomical, and molecular traits and characteristics have been studied in spring barleys released and cultivated in territory of Slovakia within the years 1900-2002. Temporal changes were detected in all studied characteristics. Average value of plant height in cultivars decreased within one century by 226 mm, resistance to lodging improved from 5.7 to 9, thousand kernel weight increased from 46.63 g to 49.69 g. Principal benefit in yield is related to cultivars after releasing of Diamant (after 1965), those average yield improved by 0.93 t/ha, in comparison with cultivars of previous period, resistance against powdery milder increased from average value 6.2 to 7.3. The total number of microsatellite alelles was more or less equal in cultivars of periods up to 1985. Their significant rising has begun after this year. Nevertheless average number of microsatellite alelles per one cultivar is reversal and indicates progress in uniformity of newer cultivars.
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