
Carbon isotope discrimination and water use efficiency relationships of alfalfa genotypes under irrigated and rain-fed organic farming
Keywords: Δ, carbon isotope discrimination; WUE, water use efficiency; TE, transpiration efficiency; FDR, frequency domain reflectometry; SAW, soil available water; SHDM, shoot dry matter; STDM, stubble dry matter; RODM, root dry matter; TBY, total biomass yield; E