... biomassinvestment in branches in low light. However, in our study,there was an increase in the fractional investment in needleswith increasing Qint in the fertile site, and no effect of Qint in the ... growth, and branching frequency in response to seasonal averageintegrated quantum flux density (Qint) were investigated in Pinus sylvestris L. in a fertile site (old-field) and an infertile ... Berlin, 1987, pp. 180–202.[43] Linder S., Foliar analysis for detecting and correcting nutrientimbalances in Norway spruce, Ecological Bulletins 44 (1995)178–190.[44] Mailly D., Kimmins J.P.,...