The Effect of Drip Irrigation on the Length and Distribution of Apple Tree Roots

In a three-year experiment (2019–2021), the roots of 7-year-old apple trees (Malus domestica cv. ‘Red Jonaprince’) grown under drip irrigation were studied. The aim study was to determine effect on root density at different depths and distances from trunk. working hypothesis assumed that significantly affects total length roots. treatments corresponding calculated water evapotranspiration (ET100), 50% ET (ET50), control (ET0, no irrigation, rainfed conditions), treatment using double-drip lines (2Drops) monitored. Soil cores collected in spring autumn. (TRLt) new vital (TRLv) depth 80 cm evaluated. effects mostly insignificant for TRLt; only dry season 2019 TRLt values irrigated (ET50 ET100) higher, 18.67 km·m−2 17.45 km·m−2, comparison 11.16 ET0, 10 distance tree had statistically significant TRLv near trunk 2020, while autumn 2020 2021, affected greater summary, length. However, an observed certain sampling dates