The aims of this study were to analyse K
+
and water
fl
ows in
excised roots of different sun
fl
ower cultivars immediately after a
water stress period and to determine the relationship between
these
fl
ows and water stress tolerance. Two experiments were
performed to achieve these goals.
In the
fi
rst experiment, the cultivars Sanbro, Jazzy, Supersun,
Sungro, Alhaja and Olimpia were regularly watered until de
fi
cit