Effects of different emitter space and water stress on yield and quality of processing tomato under semi-arid climate conditions

摘要: Abstract The objective of the study was to determine effects different emitter spaces and water stress on crop yield, such that tomatoes would be suitable for processing paste output ( Lycopersicon esculentum Mill cv. Shasta). Such variables were also analyzed with respect quality characteristics (e.g., mean fruit weight – MFW, diameter FD, penetration value PV, pH, total soluble solids TSS, ascorbic acid contents AA). experiment conducted under ecological conditions typical Konya Plain, a semi-arid climate, in 2004 2005. Drip irrigation laterals arranged way every row had one lateral. Emitters spaced at 25, 50, 75 cm intervals main plots, while four levels supply, 7-day enough fill soil depth 0–60 cm until capacity reached I 1 ), 75% decreased supply applied as subplots experiment. Results field experiments showed yield (68.7–72.7 t ha −1 ) (12.2–12.9 t ha obtainable application p determined 426 525 mm 2004. In 2005, amount consumptive use same treatment 587 619 mm, respectively.