01325naa a2200289 a 450000100080000000500110000800800410001910000240006024501010008426000090018552005440019465000150073865000150075365000130076865000100078165000120079165000130080365300100081665300120082670000200083870000210085870000190087970000210089870000260091970000170094577300730096214807382018-07-21       1998    bl uuuu     u00u1 u    #d1 aMAGALHAES, J. V. de  aNitrate uptake by corn under increasing periods of phosphorus starvation.h[electronic resource]  c1998  aSingle cross seedlings of the male progenitor of the double cross hybrid, BR 201, were grown for seven days in a complete nutrient solution prior in evaluating the kinetics of nitrate uptake under varying periods of phosphorus deficiency. Nitrate uptake decreased 60% after a short period of phosphorus starvation (2 days) and ceased when phosphorus was withheld longer than six days. Nitrate uptake resumed after phosphorus (P) was re-supplied, but the time required and extent of recovery depended on the length of phosphorus starvation.  aphosphorus  astarvation  aFósforo  aMilho  aNitrato  aZea Mays  aMaize  aNitrate1 aALVES, V. M. C.1 aNOVAIS, R. F. de1 aMOSQUIM, P. R.1 aMAGALHAES, J. R.1 aBAHIA FILHO, A. F. C.1 aHUBER, D. M.  tJournal of Plant Nutrition, New Yorkgv.21, n.8, p. 1753-1763, 1998.