00489naa a2200169 a 450000100080000000500110000800800410001910000190006024501030007926000090018265000140019165000090020565300280021470000180024270000160026077300430027616031481995-06-27       1980    bl ---       0--  u    #d1 aMCCLURE, P. R.  aEvaluation of the relative ureide content of xylem sap as an indicator of N2 fixation in soybeans.  c1980  aRhizobium  aSoja  aBIOQUIMICA E FISIOLOGIA1 aISRAEL, D. W.1 aVOLK, R. J.  tPlant Physiol.gv.66, p.720-725, 1980.