01323nam a2200241 a 450000100080000000500110000800800410001910000230006024501830008326002020026652004100046865000110087865000170088965000250090665000100093165000120094165000260095365000170097965300260099665300210102270000180104370000200106112119922025-04-04       1999    bl uuuu     u00u1 u    #d1 aPINHEIRO, B. da S.  aWater use efficiency and carbon isotope discrimination of an upland rice variety during reproductive and grain filling stages, as affected by water stress.h[electronic resource]  aRevista Brasileira de Fisiologia Vegetal, Brasília, v. 11, p. 125-126, jun. 1999. Suplemento. Edição de Resumos do VII Congresso Brasileiro de Fisiologia Vegetal, Brasília, DF. jul. 1999.c1999  aIn 1995 and 1996, two experiments with the upland rice variety Guarani, grown em 1 m3 boxes under movable rain shelters, were conducted at Embrapa Arroz e Feijao, Santo Antonio de Goias, GO. The objetive was to study changes in carbon isotope discrimination and water use efficiency, during reproductive and early grain filling stages and how these changes were related to plant susceptibility to drought.  aCarbon  aWater stress  aWater use efficiency  aArroz  aCarbono  aDeficiência Hídrica  aOryza Sativa  aArroz de terras altas  aCultivar Guarani1 aAUSTIN, R. B.1 aCARMO, M. P. do