Nitrogen and Boron Dosage Effects on Arginine Accumulation in Scots Pine Needles

Free arginine (Arg) content was observed to multiply when the level of nitrogen (N) nutrition high, and additional fertilization with boron (B) potentiated this effect. Owing feature, conifers can be suggested for use as bioproducers Arg. Concentrations Arg in relation N B needed better understood. The effect soil on accumulation these elements free one-year-old needles 16-year-old Scots pine (Pinus sylvestris L.) trees determined study. Plantations were fertilized doses from 0 1000 kg ha−1 6 ha−1. Fertilization 3 at 200–500 stimulated up 3.1–3.6% dry weight (DW). increased 74.7 175.9 μmol g−1 DW levels B.