Ertek, ASensoy, SGedik, IKüçükyumuk, C2025-05-102025-05-1020060378-377410.1016/j.agwat.2005.03.0082-s2.0-32044440338https://doi.org/10.1016/j.agwat.2005.03.008https://hdl.handle.net/20.500.14720/12229Sensoy, Suat/0000-0001-7129-6185This study was conducted to determine the most suitable irrigation frequency and quantity in cucumber grown under field conditions. The amount of water used was based on pan evaporation from a screened Class-A pan. Irrigation treatments consisted of two irrigation intervals (I1: 4 and 12: 8 day), and three plant-pan coefficients (K(cp)1: 0.50; K(cp)2: 0.75 and K(cp)3: 1.00). Plants were first watered at the transplanting date and scheduled irrigations were initiated after 4- and 8-day intervals. Irrigation quantities applied to the treatments varied from 320 to 509 mm; seasonal plant water comsumption or evapotranspiration of irrigation treatments varied from 391 to 597 mm; and the cuccumber yield varied from 17.99 to 45.20 ton ha(-1). The highest total yield was obtained from I2K(cp)3 treatment. Moreover, K(cp)3 treatments had the highest early yield. E1/Epan ratio according to treatments ranged from 0.29 to 1.25. Irrigation treatments had significant effects (P < 0.01) on yield and there were significant positive linear relations (P < 0.01) between the fruit number and irrigation water and between the plant water compsumption and the yield. In conclusion, K-cp3 treatment with 8-day-irrigation interval is recommended for cucumber grown under field conditions in order to get higher cucumber yield and to save time and labor. Furthermore, the E-1/E-pan equation of the best irrigation treatment (I2K(cp3)) of this study (E-t = 1.05E(pan) + 96.72) should, therefore, be used in the scheduling irrigation programs in similar conditions. (c) 2005 Elsevier B.V. All rights reserved.eninfo:eu-repo/semantics/closedAccessIrrigationCucumberPan EvaporationIrrigation SchedulingArticle811-2Q1Q1159172WOS:000235861100010