As blueberries are susceptible to water stress and their future cultivation in semiarid Mediterranean areas will be challenged by drought, irrigation management strategies will be needed to optimize water productivity and maintain sufficient levels of fruit yield and quality. This study aim was to evaluate the effect of different irrigation levels on plant water status, yield, fruit quality, and water productivity in a drip-irrigated rabbiteye blueberry (Vaccinium ashei Reade 'Tifblue') orchard. Four irrigation treatments based on crop evapotranspiration (ETc) were applied to blueberry plants during two consecutive growing seasons (2012/2013 and 2013/2014): 125 (farmers’ irrigation management, T₁), 100 (T₂), 75 (T₃), and 50 (T₄) % ETc. During the study, the average values of midday stem water potential (Ψ_stem) were −0.85, −0.86, −0.97 and −1.11 MPa for the T₁, T₂, T_3, and T₄ treatments, respectively. Fruit weight (FW), yield (Y), fruits per plant (FP), soluble solids (SS), and the water stress integral (WSI) were significantly affected by the irrigation treatments. The water productivity (WP), juice pH, and weight/volume ratio were statistically similar among the treatments. The highest values of Y, FP, and FW were observed in the T₁ and T₂ treatments, while the lowest values were found in the T₄ treatment. In addition, the Y, FP, FW and WSI in the T₁ and T₂ treatments were significantly similar, but the total water application in the T₂ treatment was between 20% and 27% lower than that in the T₁ treatment. For the T₁ and T₂ treatments, the values of Y were between 8.8 and 9.4 kg plant ⁻¹, and the Ψ_stem was >−0.85 MPa during the two growing seasons. The interaction between irrigation treatments and growing season was only significant for the FW, with the lowest values observed in the T₄ treatment during the 2012/2013 growing season.

由于蓝莓易受水分胁迫，并且其未来在半干旱地中海地区的种植将受到干旱的挑战，因此将需要灌溉管理策略来优化水的生产力并保持足够的水果产量和质量。本研究的目的是评估滴灌兔眼蓝莓（Vaccinium ashei Reade'Tifblue '）果园不同灌溉水平对植物水分状况，产量，果实品质和水分生产率的影响。在两个连续的生长季节（2012/2013和2013/2014），对蓝莓植物进行了基于作物蒸散量（ETc）的四种灌溉处理：125（农民的灌溉管理，T ₁），100（T ₂），75（T ₃）和50（T₄）％ETc。在研究期间，中午茎水势（Ψ的平均值_干）-1.11于T兆帕为-0.85，-0.86，-0.97和₁，T ₂，T _3，和T _4层的处理，分别。灌溉处理显着影响果实重量（FW），产量（Y），单株果实（FP），可溶性固形物（SS）和水分胁迫积分（WSI）。各处理之间的水生产率（WP），果汁pH和重量/体积比在统计学上相似。在T ₁和T ₂处理中观察到Y，FP和FW的最大值，而在T ₄处理中观察到最低的值治疗。另外，Y，FP，FW和WSI在T ₁和T ₂处理为显著相似，但在T中的总水量应用₂治疗为20％和27％比在T下部之间₁治疗。对于T ₁和T ₂的处理，Y的值分别为8.8和9.4之间千克植物^-1，并且Ψ_干期间两个生长季节为> -0.85兆帕。灌溉处理和生长期之间的相互作用仅对FW有意义，在2012/2013生长季节的T ₄处理中观察到的最低值。