Determination of metal interactions on root growth of Sinapis alba seedlings

Root growth of Sinapis alba seedlings was used to determine the interactions (antagonism, synergism, and indifference) among Cu2+, Ni2+, Mo6+, Mn2+ and V5+ (each to each). For majority of combinations the antagonistic or indifferent effect was observed. The synergism was confirmed only between Ni and V, Mo and V, and Cu and V. V and Mn had reciprocal antagonistic effect each other, and Mn was like as Mo and Cu the antagonist to Ni. Molybdenum came up reciprocal indifference with regard to Cu and Mn. Mn and Ni did not influence unfavourable effect of Cu on S. alba root growth.