In the second year of roseroot
vegetation average rhizome diameter and length increased respectively
to 46.41 mmand 3.4 cmwith roots length amounted to 15.4 cm on average,
and as a result total underground weight was above 3 times greater
than in the previous year (Table 1, 2) as in Przybył et al. (2008), Revina
et al. (1976), Węglarz et al. (2008) and Kucharski et al. (2011) studies.