Carbon, nitrogen, phosphorus, and sulphur concentration and partitioning in beech ecotypes (Fagus sylvatica L.): phosphorus most affected by drought

摘要: Beech seedlings of different drought sensitivity originating from 11 German provenances were grown in pots and cultivated a greenhouse. The present paper aims to give insights on uptake, transport use macronutrients, since the knowledge effects nutrition trees is low compared water relations. Therefore, elemental composition, ratio inorganic total content, partitioning between roots shoots carbon, nitrogen, phosphorus, sulphur investigated as affected by provenance treatment. Phosphorus phosphate concentrations decreased all tissues after 3 week treatment simulating summer period. In carbon increased nitrate decreased, stems nitrogen but following drought. observed phosphorus are discussed terms lower mobility substrate due availability. decrease suggests vacuolar pools for maintaining organic homeostasis. macronutrients was not drought, although significantly lowered tissues. most parameters studied significant differences found. recently reflected strength concentration changes or over provenances.