00570naa a2200205 a 450000100080000000500110000800800410001910000200006024500950008026000090017565000180018465000140020265000160021665300250023265300150025770000180027270000130029070000170030377300440032016013721995-06-27       1978    bl ---       0--  u    #d1 aRAPER JR, C. D.  aInterdependence of root and shoot activities in determining nitrogen uptake rate of roots.  c1978  aFotossíntese  aGramínea  aNitrogênio  aFISIOLOGIA DA PLANTA  aFORRAGEIRA1 aOSMOND, D. L.1 aWANN, M.1 aWEEKS, W. W.  tBot. Gaz.gv.139, n.3, p.289-294, 1978.