Effect of surface and subsurface drip irrigation methods on yield and water use efficiency of two nectarine cultivars

Effect of surface and subsurface drip irrigation methods on yield and water use efficiency of two nectarine cultivars
This study was conducted with the purpose of investigation the effect of different amount of water on yield and water use efficiency (WUE) of nectarine (Prunus persica L. cv. "Sun Gold" & “Quota”) trees. A split plot experiment was laid out in a completely randomized block design including 3 different levels of water treatments with three replication. Treatments were including different amount of water (60, 80 and 100 Percent water requirement) in main plot and drip irrigation method (surface and subsurface) in sub plot. Results showed that in cultivars, interaction water percent and irrigation method had not significant effect on yield and WUE. In "Quta ", the highest (44.067 ton/ha) and lowest (40.100 ton/ ha) yield were obtained with 100 and 60 Percent water requirement respectively. There were not significant differences on yield in surface (45.044 ton/ha.) and subsurface (38.211 ton/ha) irrigation method. In "Sun Gold", the highest (46.7 ton/ha) yield were obtained with 100 percent water requirement. With reducing amount of water, there were significant differences on yield. Surface drip irrigation method with 41.644 ton/ha was the better of Surface drip irrigation method with 39.000 ton/ha.