Structural Features of Weed Beet (complex of Beta vulgaris L.) in the Czech Republic.

Structural variation of weed beet [stalk and root length, root shape, presence of anthocyanin colouring, number of flowers (achenes) in the glomerule, germinating], with regard to the BBCH phase and the habitat conditions. ANOVA analysis and three categories of traits monitored. Evaluating demonstrable variability in the framework of the traits category and between localities. Demonstrable effect of locality on the presence of anthocyanin colouring was found, however genetic conditionality cannot be ruled out. For the other phenotypic traits no influence was demonstrated. Anthocyanin colouring and root length show significant variability. The most frequent traits are the stem length (100 – 130 cm), the pencil-shaped root and 2-3 flowers (achenes) in the glomerule. However, these traits do not necessarily manifest themselves at the same time.