Influence of regulated deficit irrigation and rootstock on the functional, nutritional and sensory quality of pistachio nuts

Abstract The aim of this study was to determine the influence of rootstock and regulated deficit irrigation (RDI) on pistachio nuts, by studying their size, weight, color, fatty acids (gas chromatography with mass spectrometer detector), minerals (atomic absorption), total polyphenol content (TPC), antioxidant activity (ABTS, FRAP, and DPPH), and sensory properties (trained panel). Three rootstocks (P. atlantica, P. integerrima, and P. terebinthus) and three irrigation treatments (T0: fully irrigation, 100 % ETc; T1: during phenological phase II the stem water potential, SWP, was maintained around −1.5 MPa; and T2: during phase II, SWP