02577naa a2200385 a 450000100080000000500110000800800410001902400530006010000250011324501280013826000090026630000130027552014140028865000150170265000210171765000280173865000140176665000210178065000390180165000140184065000290185465300290188365300280191265300170194070000200195770000280197770000210200570000190202670000220204570000170206770000230208470000230210770000120213077300490214221252572021-08-25       2020    bl uuuu     u00u1 u    #d7 ahttps://doi.org/10.3390/agriculture100401062DOI1 aMOREIRA, B. R. de A.  aGlyphosate plus carboxylic compounds boost activity of free radical-scavenging enzymes in sugarcane.h[electronic resource]  c2020  ap. 1-12.  aAbstract: Drought, heat, and salinity, as well as pests, are stressing agents, which have impressively declined the productivity and quality of sugarcane crop in harsh environments. Our study aimed to examine the effect of various chemical ripeners as alternatives to enhancing the reactiveness of the enzymatic antioxidant system of sugarcane crop. The field experiment consisted of spraying the ingredients, ethephon, ethyl-trinexapac, glyphosate, carboxylic compounds (MTD) and methyl-sulfumeturon on the Brazilian commercial varieties, SP80-1842 and SP80-3280, before flowering stage. The enzymatic assay comprised the monitoring of the rate of degradation of free radical by ascorbate peroxidase (APX), catalase (CAT), peroxidase (POD) and superoxide dismutase (SOD) in the extract from leaves of 11-month-old plants. Spraying glyphosate at 0.15 L ha-1 with MTD at 1.00 L ha-1 provided the highest activity of CAT, 0.65 µmol H2O2 min-1 mg-1 protein, in variety SP80-1842 Spraying glyphosate at 0.15 L ha-1 with ethephon at 0.33 L ha-1 caused the highest activity of APX, 1.70 nmol ascorbate min-1 mg-1 protein, in variety SP80-3280. The conclusion is, therefore, that mixtures of glyphosate with the insecticide/acaricide, MTD, and with the synthetic ethylene-releasing product, ethephon could help sugarcane crop grow adequately under uncontrollable or unpredictable agroecosystems like marginal lands.  aGlyphosate  aOxidative stress  aPlant growth substances  aSugarcane  aCana de Açúcar  aEstimulante de Crescimento Vegetal  aHerbicida  aRegulador de Crescimento  aInduced oxidative stress  aPlant growth regulators  aSaccharum sp1 aVIANA, R. da S.1 aFIGUEIREDA, P. A. M. de1 aLISBOA, L. A. M.1 aMIASAKI, C. T.1 aMAGALHÃES, A. C.1 aRAMOS, S. B.1 aVIANA, C. R. de A.1 aTRINDADE, V. D. R.1 aMAY, A.  tAgriculturegv. 10, n. 4, article 106, 2020.