The highest potassium levels were induced by 44-53 M and SO4 rootstocks, while the lowest ones were induced by 140Ru, 420A rootstocks, as well as rootstock 1202C.
The highest potassium levels were induced by 44-53 M and SO4 rootstocks, while the lowest ones were induced by 140Ru, 420A rootstocks, as well as rootstock 1202C.