Jerusalem artichoke genotypes were classified into the group
with high DTI values for root dry weight, root diameter, root: shoot
ratio, root length, root surface area and root volume and the group
with low DTI values for these traits. These Jerusalem artichoke
genotypes were previously identified as drought tolerant varieties
based on tuber yield, but their responses to drought based on root
traits was not investigated. JA 125, JA 5 and JA 60 showed the
highest DTI values for root parameters, and JA 89 and HEL 65
showed the lowest DTI values for root parameters.