02185naa a2200289 a 450000100080000000500110000800800410001902200140006010000170007424501720009126000090026352012510027265000210152365000260154465000340157065000260160465000120163065000230164265000230166565300290168865300240171770000210174170000200176270000200178270000260180277300670182820376932017-03-02       2016    bl uuuu     u00u1 u    #d  a1835-27071 aLANNA, A. C.  aPhysiological characterization of common bean (Phaseolus vulgaris L.) genotypes, water-stress induced with contrasting response towards drought.h[electronic resource]  c2016  aAmong the three annual common bean seasons in Brazil, two of them are subject to drought. The objective of this study was to identify physiological traits in common bean under water restriction. The common beans genotypes, BAT 477 (tolerant to water-stress) and Perola (sensitive to water-stress), were grown under greenhouse conditions under two different watering regimes: irrigated (control treatment) and non-irrigated (stress treatment). The water deficit treatment consisted of suspension of irrigation to the plants at 10 days after emergence (DAE) (at the V2 physiological stage) for 30 days, followed by the irrigation?s re-establishment at 40 DAE (at the R6-R7 physiological stage) up to the phase of physiological maturity of the grains for assessment of grain yield and production components. Under water-stress, BAT 477 showed less reduction in grain yield (33%), more capacity for osmotic adjustment (0.30 MPa) and superiority in the root system´s development (~50%) compared to Perola that showed a 53% reduction in the grain yield and 0.06 MPa of osmotic adjustment. In this study, the robustness of the root system and osmotic adjustment are the main physiological indicators of tolerance to water deficit in common bean plants.  aAgronomic traits  aPlant-water relations  aCaracterísticas agronômicas  aDeficiência hídrica  aFeijão  aPhaseolus vulgaris  aResistencia a seca  aPhysiological mechanisms  aTropical conditions1 aMITSUZONO, S. T.1 aTERRA, T. G. R.1 aVIANELLO, R. P.1 aCARVALHO, M. A. de F.  tAustralian Journal of Crop Sciencegv. 10, n. 1, p. 1-6, 2016.