01807naa a2200253 a 450000100080000000500110000800800410001902400380006010000220009824501110012026000090023152010690024065000150130965000130132465000100133765000170134765000140136465000090137870000300138770000180141770000170143570000270145277300740147918605572017-01-25       2010    bl ---       0--  u    #d7 a10.1080/01904167.2010.4918902DOI1 aZOBIOLE, L. H. S.  aNutrient accumulation and photosynthesis in glyphosate-resistant soybeans is reduced under glyphosate use.  c2010  aGlobal production of glyphosate-resistant (GR) soybean [Glycine max (L.) Merr.] continues to increase annually; however, there are no particular specific fertilizer recommendations for the transgenic varieties used in this system largely because reports of glyphosate effects on mineral nutrition of GR soybeans are lacking. Several metabolites or degradation products of glyphosate have been identified or postulated to cause undesirable effects on GR soybeans. In this work we used increasing glyphosate rates in different application on cv. 'BRS 242 GR' in order to evaluate photosynthetic parameters, macro- and micronutrient uptake and accumulation and shoot and root dry biomass production. Increasing glyphosate rates revealed a significant decrease in photosynthesis, macro and micronutrients accumulation in leaf tissues and also decreases in nutrient uptake. The reduced biomass in GR soybeans represents additive effects from the decreased photosynthetic parameters as well as lower availability of nutrients in tissues of the glyphosate treated plants.  aHerbicides  aSoybeans  aWeeds  aErva daninha  aHerbicida  aSoja1 aOLIVEIRA JUNIOR, R. S. de1 aKREMER, R. J.1 aMUNIZ, A. S.1 aOLIVEIRA JUNIOR, A. de  tJournal of Plant Nutrition, Londongv. 33, n. 12, p. 1860-1873, 2010.