Person: BÜYÜKCANGAZ, HAKAN
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BÜYÜKCANGAZ
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HAKAN
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Publication Environmental impacts and sustainability of irrigation schemes in northern ghana: A survey for golinga and botanga communities(Parlar Scientific Publications (P S P), 2019-01-01) Alhassan, Mohammed; Büyükcangaz, Hakan; Alhassan, Mohammed; BÜYÜKCANGAZ, HAKAN; Doğa Bilimleri Enstitüsü; AAH-2934-2021; JZC-4878-2024Most farmers in sub-Saharan Africa live in areas with relatively abundant water resources. The availability of these water resources, however, is extremely seasonal because of the patterns of the annual rain season(s) and the increasing effects of climate change all over the world. A survey was conducted at Golinga and Botanga irrigation schemes in Northern Ghana where 200 respondents were interviewed. The objectives of this study include: (i) to assess the management and sustainability of irrigation projects, (ii) to find out the impact of the irrigation projects on rural communities' development, (iii) to find out the challenges that hinders farmers from effectively using irrigation water from the perspective of farmers and to find the possible solutions to the challenges.38 and 40% of respondents from Golinga and Botanga irrigation schemes respectively agreed that cropping areas have moderately expanded due to the presence of irrigation scheme however, 52 and 39% of respondents from both schemes respectively indicated that the presence of the irrigation scheme to them has little impact in helping farmers expand their cropping areas. There was also moderate increase in crop yields in both communities due to the constant water supply to farmers obtained from irrigation projects.The study shows that the major challenge that hinders farmers from using irrigation water is the high cost of renting irrigable land for farming in the irrigation schemes indicated by a response of 47 and 64% amongst farmers in Botanga and Golinga irrigation schemes respectively. The study suggests that the need for relevant stakeholders to; revise the cost of renting irrigable lands, acquire and adopt the use of simple and affordable technologies (machines), implement reforms and policies to reduce land consolidation and fragmentation, organize and mobilize farmers in farmer cooperatives to promote collective marketing and organize capacity building sessions for farmers regarding the project sustainability.Publication Determination of diurnal leaf gas exchange for drip-irrigated kenaf plant in sub-humid climatic conditions(Hard, 2022-01-01) Candoğan, Burak Nazmi; Yetik, Ali Kaan; Sincik, Mehmet; Demir, Ali Osman; Büyükcangaz, Hakan; CANDOĞAN, BURAK NAZMİ; SİNCİK, MEHMET; DEMİR, ALİ OSMAN; BÜYÜKCANGAZ, HAKAN; Ziraat Fakültesi; Tarla Bitkileri Bölümü; AAH-1811-2021; AAH-3102-2021; JLX-2232-2023; HHX-4880-2022Kenaf stands out as an important fiber source in the industry with its 4000-year history. Physiological properties have a great effect on the development process of kenaf. Physiological properties are significantly affected by seasonal air temperature changes and precipitation, as well as fluctuations during the day. The main reason for these fluctuations is seen as instant changes in environmental factors. In this study, it was aimed to determine the hourly changes of leaf gas exchange parameters of drip-irrigated kenaf plant and to examine the relationships between these parameters. Field experiment was conducted in Bursa, Turkey, which has sub-humid climatic conditions. For this purpose, net photosynthesis rate (A), stomatal conductivity (gs), intercellular CO2 concentration (Ci) and transpiration rate ( E) measurements were carried out on 18th September 2019 and 26th September 2020, between 08:00 h and 18:00 h. As a result of the study, while it was determined that A, gs, Ci and E parameters varied between 14.75-23.67 mu mol CO2 m(-2) s(-1), 0.23- 0.74 mol H (2) O m(-2) s(-1), 243-331 mu mol CO2 mol air(-1) and 2.67-7.37 mmol H (2) O m(-2) s(-1), respectively in 2019, they varied between 13.97-22.30 mu mol CO2 m(-2) s(-1), 0.29-0.58 mol H2O m(-2) s(-1), 217-278 mu mol CO2 mol air(-1) and 6.3-14.7 mmol H2O m(-2) s(-1), respectively in 2020. Different measurement times had significant effects on all parameters at the p<0.01 level for both years. As a result of the evaluation of the relationships between gas exchange parameters, it was determined that the gs-A and E-A relationships were statistically significant at the p<0.01 level for both years. On the other hand, in 2019 and 2020, Ci-A relationships were significant at p<0.05 and p< 0.01 probability levels, respectively. Information on the responses of leaf gas exchange parameters to weather changes occurring during the day in kenaf plant in sub-humid climate conditionsPublication The effect of full and deficit irrigation applied at different growth stages of eggplant ( solanum melongena l.) on yield and yield components under sub-humid conditions(Parlar Scientific Publications (P S P), 2019-01-01) Uğlu, Gülşah; Büyükcangaz, Hakan; BÜYÜKCANGAZ, HAKAN; Ziraat Fakültesi; Biyosistem Mühendisliği Bölümü; AAH-2934-2021This study was carried out to investigate the relationship between irrigation water applied at different growth stages and yield/yield components of the eggplant (cultivar Pala 49) and to determine the most critical growth periods of the plant as a response to irrigation during 2016 and 2017 years under the sub humid conditions of Yalova, Turkey. Growth stages of eggplant are vegetative (V), flowering (F), yield formation (Y), and ripening (R). Experimental treatments were determined as non-irrigation (control), full irrigation (VFYR) and 14 different deficit irrigation treatments (V, F, Y, R, VF, VR, YR, FY, VY, FR, FYR, VYR, VFR, VFY). The highest seasonal evapotranspiration (average 735 mm) was obtained from the VFYR treatment. Deficit irrigation practices applied during different growth stages have different effects on yield and yield components. The highest water use efficiency (WUE) (average 6.35 kg m(-3)) was obtained from V treatment. The highest plant height (96.5 cm) and plant diameter (14.9 mm) were obtained from the VFYR treatment as average numbers of two experimental years. Since fruit length (average 22.5 cm), fruit diameter (average 63.4 mm) and maximum yield (average 4143.2 kg) were obtained from the VFYR treatment, it was concluded that this irrigation treatment would be the best choice under local conditions. Since VFY treatment which gave the best statistical results following VFYR, it may also be recommended as a good option for water short areas.Publication Effects of full and deficit irrigation on the growth and quality of cool-season turfgrasses under subsurface drip irrigation(Elsevier, 2023-11-22) BİLGİLİ, UĞUR; ARSLAN, BİLGE; CANDOĞAN, BURAK NAZMİ; Arslan, Bilge; Büyükcangaz, Hakan; BÜYÜKCANGAZ, HAKAN; Kumraltekin, Emir Doğan; KUŞÇU, HAYRETTİN; Kuşçu, Hayrettin; Yönter, Fikret; YÖNTER, FİKRET; Ziraat Fakültesi; Biyosistem Mühendisliği; AGD-4084-2022Irrigation is necessary in terms of achieving high-quality turfgrass. However, it is evident that more efficient and cost effective irrigation methods should be adapted for the sake of water conservation strategies since water consumption is high during turf irrigation. The objective of this study is to determine the effects of full and deficit irrigation with subsurface drip irrigation on growth and quality of perennial ryegrass (Lolium perenne L.) and tall fescue (Festuca arundinaceae Schreb) in a sub-humid climate of Turkey. Three irrigation treatments [I1 (full irrigation), I2 (mild water deficit, 75%), and I3 (moderate water deficit, 50%) were applied to the plants. Turf color and quality of each plot were rated visually, and clipping yields were collected. The amount of irrigation applied varied between 457.3 - 833.9 mm and 356.7 - 710.1 mm and seasonal crop evapotranspiration (ETa) values ranged from 578.4 to 1053.0 mm for tall fescue and 551.2 to 1044.0 mm for perennial ryegrass in 2018 and 2019, respectively. Among the species, tall fescue showed higher visual color, quality ratings and clipping yields. In cases where it does not matter for one or two weeks to be below the acceptable quality (<6) minimum annual irrigation amounts required to maintain quality was 689.1 mm for perennial ryegrass and 578.4 for tall fescue. The results have suggested that acceptable visual color and quality are sustainable in the tall fescue with mild water deficit application in regions where irrigation water is limited in sub-humid climates. Studies on water-saving strategies to turfgrass in regions where the climates varies from year to year are lacking in literature.Publication The determination of wind-powered irrigation potential in Turkey(Univ Agricultural Sciences & Veterinary Medicine Bucharest, 2014-01-01) Taşkın, Onur; Uğlu, Gülsah; Büyükcangaz, Hakan; Vardar, Ali; TAŞKIN, ONUR; BÜYÜKCANGAZ, HAKAN; VARDAR, ALİ; Uludağ Üniversitesi; AAH-5008-2021; AAH-5018-2021; AAH-2934-2021Irrigation is considered a common need for agricultural production in all around the world. Instead of the high priced fossil fuels, wind-powered agricultural irrigation is an alternative usage of renewable energy in Turkey. However, it is necessary to be researched technically and economically before the implementation. In this paper; crop types, geographical frame, and groundwater quantity were taken into consideration in the context of technical feasibility. A cost analysis was done by consideration of the costs of water storage tanks, wind turbine, and pump as an economic feasibility study. The results of feasibility study provided that there is enough irrigation potential based on wind power in Marmara, Aegean and East Mediterranean regions. The increase in wind-powered irrigation will optimize the agricultural water use and preserve the environment from adverse impacts of greenhouse gases.Publication Deficit irrigation effects on cauliflower (Brassica oleracea L. var. Skywalker F1) yield under unheated greenhouse conditions.(Parlar Scientific Publications (P S P), 2019-01-01) Büyükcangaz, Hakan; Ayas, Serhat; BÜYÜKCANGAZ, HAKAN; AYAS, SERHAT; Ziraat Fakültesi; Biyosistem Mühendisliği Bölümü; C-4137-2019; AAH-2934-2021The aim of this study was to determine the effect of deficit irrigation on yield of cauliflower grown under unheated greenhouse conditions. The research was carried out at the Agricultural Research Station of Yenisehir Vocational School of Bursa Uludag University in Bursa, Turkey, in 2008 and 2009. In the study, water was applied to cauliflower as 1.00, 0.75, 0.50, 0.25 and 0.00 % (as control) of evaporation from a Class A Pan corresponding to 2 day irrigation frequency. Irrigation water applied ranged from 70-530 mm to 70-528 mm, and water consumption ranged from 90-548 mm to 90-540 mm. The effect of irrigation water level on the yield, head height, head diameter, head weight and dry matter were found to be significant. The highest yield were 30.4-28.8 t ha(-1). Crop yield response factors for cauliflower (k(y)) were found as 0.90 and 0.93 for both years. The highest values of water use efficiency (WUE) and irrigation water use efficiency (IWUE) for 2008 and 2009 years of K2(cp) treatment were calculated to be 0.069 kg m(-3) - 0.064 kg m(-3) and 0,067 - 0,064 kg m(-3), respectively. K2(cp) application (75%) can be recommended as the most effective irrigation level for the cauliflower to which drip irrigation is applied under scarce and unheated greenhouse conditions.Publication The effects of water deficit on concentration of macro and micronutrients of common bean (Phaseolus vulgaris L.) cultivars(Parlar Scientific Publications (PSP), 2020-01-01) Kıymaz, Sultan; Kuşlu, Yasemin; Büyükcangaz, Hakan; BÜYÜKCANGAZ, HAKAN; Ziraat Fakültesi; Biyosistem Mühendisliği Bölümü; AAH-2934-2021Water deficit is one of the main restrictions to crop growth and productivity worldwide. This study was conducted to investigate the effects of different levels of water deficit (I1.00:100%-control of field/pot capacity, I-0.75:75% of field/pot capacity and I-0.50:50% of field/pot capacity) on the concentration of macro- and micronutrients of four common bean (Phaseolus vulgaris L.) cultivars ("Sarikiz", "Sazova", "Kirk Gilnliik", and "Gina"). The investigation was carried out in pot experiment in a greenhouse and experiments were designed using a randomized block design with ten replications. Water stress significantly but differentially affected the growth, seed yield components and nutrients of the four common beans in our study. In the fresh pod, cv."Gina" has come to the fore in terms of macro and micro elements (P, K, Ca, Mg, B, Cu, Mn, and Se) under the maximum water stress (I-0.50). Similarly, cv."Gina" was released mainly foreground in terms of growth parameters (pod width, pod length, number of pods in the plant and number of seed in the total plant) and macro- and micronutrients in terms of P, Cu, F and S under the maximum water stress (km). Based on the results of this study, it can be said that cv. "Gina" is more tolerant to water stress than other bean cultivars. The use of drought-tolerant cultivar of common bean may produce more yield with less water; thereby improves water productivity for efficient use of water resources.