
The isohydric cv. Montepulciano (Vitis vinifera L.) does not improve its whole-plant water use efficiency when subjected to pre-veraison water stress
Keywords: A, leaf assimilation rate; E, leaf transpiration rate; gs, leaf stomatal conductance; NCER, net CO2 exchange rate; Tc, canopy transpiration; Tg, gravimetric vine water loss; WUEc, canopy WUE; WUEi, intrinsic water use efficiency; WUEinst, instantaneous wa