Genetic variability of wheat germplasm represented in the south Pannonian region
2017
In this study, genetic variability was investigated among 50 winter wheat
varieties (Triticum aestivum L.) which are grown in parts of Croatia,
Hungary, Serbia and Slovenia according to 22 morphological characteristics
used for DUS (distinctness, uniformity and stability) testing. The average
Dice similarity coefficient was 0.371. The determined similarity coefficient
was in range 0.083 - 0.776. A significant variability of 6.21% in the
breeding programs according to period was determined as well as significant
variability of 3.10% between breeding programs. The UPGMA clustering divided
investigated varieties into four main clusters. Based on data analysis, most
distant varieties with best morphological characteristics were found which
will provide valuable resource of new parent's combinations in future
breeding programs. This paper also provided valuable assessment of
morphological characteristics to define distinctness criteria in the DUS
examination of wheat.
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