There is little information about the effects of the ethanolic extract of propolis (EEP) in common bean. The aim of this study was to investigate the effects of foliar spray of ethanol extract of propolis (EEP) on vegetative growth, water loss and yield of black type common bean. The experiment was conducted at Farm Dona Isabina from February to May 2012. The experimental design was a randomized block with five replicates, applying five concentrations (0, 3, 6, 9 and 12%) of EEP, and the extract was made with 10% of crude propolis (which originated from the coast of Paraná State -Brazil) and 90% alcohol, 96°GL. Only chlorophyll content and stem diameter were split plot in time. The EEP also significantly increased the levels of Mg in the leaves, increasing the concentrations of chlorophyll in leaves and vegetative growth, which served as an energy threshold, increasing the productivity of the mighty bean for 426 kg/ha.
Key words: Water content, beeswax, drought stress.