01795naa a2200193 a 450000100080000000500110000800800410001902200140006002400390007410000160011324501180012926000090024752011960025665000150145265000150146765000090148270000210149177300890151220646572017-11-03       2016    bl uuuu     u00u1 u    #d  a1532-24167 a10.1080/00103624.2016.12289492DOI1 aMOREIRA, A.  aSulfur use efficiency in soybean cultivars adapted to tropical and subtropical conditions.h[electronic resource]  c2016  aSulfur (S) is an essential nutrient in crop plants and one of the components of amino acids (AAs) and proteins. Studies about sulfur efficiency on soybean cultivars [Glycine max (L) Merril] adapted to the tropical and subtropical conditions are still incipient. In Brazil, one experiment under greenhouse conditions evaluated the S-efficiency from eight soybean cultivars. The plants cultivated in a Typic Quartzipsamment received two S rates (0 and 80 mg kg?1). The grain yield (GY), shoot dry weight (SDW), and the relative yield (RY) had influence from the S rates. The cultivars BRS 295RR and BRS 360RR were the most efficient in using the S application. The number of pods per plant (NPP), photosynthetic rate (A), nitrate reductase (N-NO2?), and chlorophyll significantly increased with de 80 mg kg?of S.By contrast, the internal concentration of carbon dioxide (CO2) (Ci) was reduced. Similarly, there were increases in the concentration of nitrogen (N),phosphorus (P), magnesium (Mg), and N:S ratio in the leaves and grain, but the K increased only in the leaves. Comparing the cultivars, only the Nconcentration in the leaves and the Mg in the grain had non-significant differences.  aFisiologia  aNutrição  aSoja1 aMORAES, L. A. C.  tCommunications in Soil Science and Plant Analysisgv. 47, N. 19, p. 2208-2217, 2016.