... et Pathologie V6g6tale-ENSA, 34060 Montpellier Cedex, and21NRA, SRIV, Domaine -de- Gotheron, 26320 St-Marcel -les- Valence, FranceIntroductionBecause of the relationship betweenpeach ... bark and drying, calcium contentwas determined by flame photometry.ResultsMean values of the twig calcium contentsare presented in Table I. Under all condi-tions tested, ... demineralized water was deion-ized by a large resin device (Sadon Co.,Demino 5000 model). One gram of CaO/kg ofsoil was added to the soil to be amended....