Yazar "Sezen, S. Metin" seçeneğine göre listele

Listeleniyor 1 - 3 / 3
  • Küçük Resim
    Öğe
    Comparison of the partial root drying and conventional drip irrigation regimes on seed, oil yield quality, and economic return for peanut crop
    (Springer, 2023) Sezen, S. Metin; Yamac, Sevim Seda; Konuskan, Dilsat Bozdogan; Yilmaz, Ibrahim; Yildiz, Mehmet; Kara, Orhan; Maambo, Clever Mwika
    This study compares conventional drip irrigation (CDI) and partial root drying (PRD) on yield components, oil quality, and economic return of peanut crops in the 2014 and 2015 growing seasons in the Mediterranean climatic conditions of Turkiye. The main plots and subplots consisted of 3 irrigation frequencies (IF25; IF50 and IF75) and 7 irrigation levels (IL0.50 = 0.50, IL0.75 = 0.75, IL1.0 = 1.00, IL1.25 = 1.25, ILPRD50, ILPRD75, and ILPRD100). Of the subplots, 4 were CDI treatments (IL0.50 = 0.50, IL0.75 = 0.75, IL1.0 = 1.00, IL1.25 = 1.25), and 3 were PRD treatments (ILPRD50, ILPRD75, and ILPRD100). CDI treatments (IL0.50, IL0.75, IL1.0, and IL1.25) received 50, 75, 100, and 125 of Cumulative Pan Evaporation. In addition, PRD treatments (ILPRD50, ILPRD75, and ILPRD100) were considered. They received 50, 75, and 100% of IL1.0 treatment from alternate laterals, respectively. The largest and the smallest average peanut yields were obtained from the IF50IL1.25 and IF75IL0.50 treatments each year. The result showed that increasing the irrigation water amount increases the oil yield. The highest oil content, peanut yield, and generating maximum return were obtained from IF50IL1.25 in both growth years. The saturated and unsaturated fatty acid contents were remarkably influenced by IFs and ILs. Stearic acid concentration considerably decreased under unstressed conditions, while palmitic acid values increase. The peanut quality was also affected under water stress with lower oil content. PRD has a marked effect on peanut quality under deficit irrigation of water applied with significantly reduced compared with DI. The high oil yield response factor (ky(oil)) value acquired for the peanut crop indicated its high sensitivity to irrigation interval and water deficit. It was determined that there are considerable linear relationships between the oleic acid and linoleic acid contents compared to crop evapotranspiration (ETc) during different irrigation intervals in each season. Economic assessment expressed that IF50IL1.25 treatment attained the highest seed and oil yield of peanuts and maximum net return in both seasons. Overall, the findings showed that pod yield per hectare, pod weight per plant, pod number per plant, shelling percentage, palmitic and linoleic acid percentage, oil percentage, and 100-seed weight values increased with increasing irrigation water at each irrigation interval, but oleic and stearic acid percentages decreased in both years.
  • Küçük Resim
    Öğe
    Different furrow management techniques for cotton production and water conservation in Harran Plain, Sanliurfa
    (Tubitak Scientific & Technological Research Council Turkey, 2012) Kanber, Riza; Onder, Sermet; Unlu, Mustafa; Tekin, Servet; Sezen, S. Metin; Diker, Kenan
    In this study, the water saving and conservation potential of various furrow irrigation management techniques for irrigated cotton were compared. Conventional every-furrow irrigation with open-end furrows (EFO) and blocked-end furrows (EFB), and alternate every-other-furrow management with open-end furrows (AFO) and blocked-end furrows (AFB), were considered. Considerable seasonal water savings were obtained with AFO and AFB flows, on average from 717 mm to 906 mm, respectively, when compared to EFO. Alternate furrows showed the ability to reduce tailwater runoff considerably. When compared with EFO, water use was reduced by 9063 m(3) ha(-1) (60%) using AFB and 7167 m(3) ha(-1) (48%) using AFO, with decreases in yield of 765 kg ha(-1) (27%) and 492 kg ha(-1) (17%), respectively. Similarly, average water use efficiencies were 0.36 kg m(-3) for AFB and 0.31 kg m(-3) for AFO, compared to 0.20 kg m(-3) for EFO. Results showed the possibility of applying alternate-flow furrow management techniques for water conservation in cotton irrigation. Additionally, the alternate furrow method could also be considered as a deficit irrigation approach in the Harran Plain.
  • [ N/A ]
    Öğe
    Effects of drip irrigation management and different soilless culture on yield and quality of tomato grown in a plastic house
    (2006) Sezen, S. Metin; Celikel, Gulendam; Yazar, Attila; Mendi, Yesim Yalcin; Sahinler, Suat; Tekin, Servet; Gencel, Burçin
    This study was carried out to determine the most suitable irrigation scheduling of fresh market tomato (Fantastic-144) grown on volcanic ash, peat and their mixture (1:1) under Plastic house conditions at Alata Horticultural Research Institute in the Mediterranean Region of Turkey in 1998. The quality and yield response of Fantastic-144 to trickle irrigation was also investigated. Four different irrigation levels (WL1 = 75%, WL2 = 100%, WL3 = 125% and WL4 = 150% of Class A Pan evaporation) and two irrigation frequencies (once and twice daily applications) were evaluated. Highest yield and fruit number were obtained from the ash+peat (1:1) with irrigation once a day at WL4 and ash+peat (1:1) with twice a day watering at WL3 and WL4 irrigation levels. Soluble solids of tomato fruit decreased with increasing available water. The highest WUE value of 67.5 kg m-3 was obtained from WL1 with peat+ash (1:1). WUE decreased in all treatments as the amount of irrigation water increased. © 2006 Asian Network for Scientific Information.