Koksal Aydinsakir

• Assoc. Prof.
• Researcher at Bati Akdeniz Agricultural Research Institute

Kuraklık, küresel gıda üretimi için giderek artan bir tehdit oluşturmakta ve verim ile kalite kayıplarını azaltmada sürdürülebilir tarım uygulamalarının gerekliliğini ortaya koymaktadır. Bu çalışmada, aşılı fideler ve vermikompostun (V) patlıcan bitkisinin besin maddesi içeriği üzerindeki sinerjik etkileri ve bunların verimle olan ilişkisi incelenm...

zet: Bu araştırma, farklı sulama suyu seviyelerinin kenevir (Cannabias sativa L. cv 'Vezir-55') bitki tohumlarının antioksidan aktiviteleri üzerine etkisini belirlemek amacıyla 2023 yılında Antalya Batı Akdeniz Tarımsal Araştırma Enstitüsü'nde yürütülmüştür. Araştırmada farklı sulama seviyeleri, yetiştirme mevsimi boyunca 60 cm'lik bitki kök bölges...

The aim of this research was to study yield and drought tolerant indices of four commercial sorghum genotypes (Uzun, Erdurmuş, Beydarı and Öğretmenoğlu) under full (FI) and deficit irrigation (DI) conditions at the Batı Akdeniz Agricultural Research Institute (BATEM), Antalya, Türkiye. Stress sensitivity index, stress tolerance index, harmonic mean...

Karanfil, Türkiye’de yetiştirilen kesme çiçek türleri arasında 602 hektar üretim alanı ve %94’lük ihracat payı ile başta Antalya ili olmak üzere yetiştiriciliği yapılan önemli bir türdür. Türkiye'de karanfil yetiştiriciliğindeki en önemli sorunların başında üretim materyalinde dışa bağımlılık gelmektedir. Bu durum sektörün gelişiminin önündeki en ö...

Drought is one of the important abiotic stresses that significantly affects plant growth and development process. The use of grafted plants and vermicompost application create significant potential for tolerance to drought stress. The scope of the study; it consists of the evaluation of the effects of grafting and vermicompost applications on the m...

This report investigates the intricate interplay between the drivers of changes in soil health, along with the pressures and impacts on soil in the 32 European Environment Agency (EEA) member countries, as well as six cooperating countries from the West Balkans, Ukraine, and the UK. It sheds light on the multifaceted challenges facing soil conserva...

In this study, it was aimed to determine the Kc of tomato, eggplant, pepper and cucumber grown in two consecutive seasons in a year in a common type of plastic greenhouse, using the reference (grass) (ETo) and crop evapotranspiration (ETc) values measured directly in lysimeters. The study was carried out at drainage-type lysimeters placed in the gr...

Gypsophila (Gypsophila L.) is a member of the Caryophyllaceae family and its genus consists of approximately 150 species. Some of several species are grown commercially for a variety of uses herbal medicine, and food. Its most common use is as cut flower worldwide. Gypsophila species are native and widely distributed in Turkey that is the main gene...

The scope of the study: it consists of the evaluation of the effects of grafting and vermicompost applications on the morphophysiological properties of eggplant under drought stress by principal component analysis (PCA). In the study carried out under greenhouse conditions, the grafting and non-grafting plants were grown in conditions containing di...

Growing media and irrigation water level are the most important factors affecting plant yield and quality throughout the world. The present research was conducted in greenhouse located in Batı Akdeniz Agricultural Research Institute between 2019 and 2020 growing season to determine the effects of different substrates and irrigation levels on yield...

In this study, it was aimed to evaluate the effects of different lateral depths and irrigation treatments on the bioethanol yield and yield components of the sweet sorghum ( Sorghum bicolor L.) in the subsurface drip irrigation method. The experiment was carried out in three replications in a randomized block trial design in 2020 and 2021 in Antaly...

The aim of this study was to determine the effect of deficit irrigation on evapotranspiration, crop water productivity, irrigation water productivity, yield response, yield components and quality characteristics of grain sorghum (Sorghum bicolor L.) grown in Antalya, Turkey. The experiment was carried out in a randomized block design with three rep...

This study was carried out to determine the effect of deficit irrigation applications on yield and quality criteria in 20-year-old grapefruit (Citrus paradisi Macf. cv. Star Ruby), irrigated by subsurface drip irrigation method in Batı Akdeniz Agricultural Research Institute between 2018 and 2019. In the research, full irrigation I1 (100%) and defi...

Fusarium oxysporum f.sp. dianthi (Prill and Delacr.) (Fod) is a causal agent of wilt disease of carnation (Dianthus caryophyflus L.) with its different physiological races. Although eleven physiological races of Fod have been reported in the world, a polymerase chain reaction (PCR)-based diagnostic tool was developed for identification of Fod races...

This study was carried out to define different drip irrigation approaches on fruit yield and quality parameters of orange (Citrus sinensis cv. Valencia Late) trees during 2014-2016 at the private farm in Güzelyurt, Northern Cyprus. The amount of irrigation water was applied based on the total evaporation amount obtained from the Class A pan (Kcp1:1...

Fusarium oxysporum f.sp. dianthi (Prill and Delacr.) (Fod) is a causal agent of wilt disease of carnation (Dianthus caryophyflus L.) with its different physiological races. Although eleven physiological races of Fod have been reported in the world, a polymerase chain reaction (PCR)-based diagnostic tool was developed for identification of Fod races...

Increasing population, pollution of current natural resources, global warming and climate change are increasing pressure on water resources. To maintain the food security of the increasing population, it is essential to increase sustainable agricultural production and to use current limited water resources optimally. In this study, the effect of su...

Results and discussion Performances of the hybrids and commercial checks (circled in blue) under normal and drought stress are given in Figure 1. Three maize hybrids numbered 20, 24, 26 showed very good grain yield performance under both water regimes. Introduction Abiotic stresses threaten sustainable agricultural all over the world. In particular...

In this study, we investigated the effects of deficit drip irrigation practices on evapotranspiration, water-yield relations, and quality characteristics of two sesame varieties (Muganli-57 and Birkan) grown in the lysimeters under the Mediterranean climate conditions. Irrigation treatments were rainfed (non-irrigated) (I0), drip irrigation with 25...

The objective of the present study was to determine the effects of different irrigation levels applied with surface drip irrigation (SDI) and subsurface drip irrigation (SSDI) method on yield and bioethanol productivity of sorghum (Sorghum bicolor L. cv. Early Sumac) in the West Mediterranean Region of Turkey. Field study was conducted in Batı Akde...

This research was conducted to investigate the effects of phytostimulators application (Messenger, Crop-Set, ISR-2000) on yield and morphological parameters of common bean cultivars grown under four irrigation regimes [25% (I25), 50% (I50), 75% (I75) and 100% (I100)]. Phytostimulators reversed the negative effect of drought on plant growth. Signifi...

The aim of the study was to determine the yield and silage characteristics of maize hybrids (Burak, Efe and Şafak) under different irrigation levels designated as no irrigation (I0), irrigated 25% (I1), 50% (I2), 75% of I4 treatment (I3), and fully-irrigated treatment (I4), irrigated when 40% of available water content consumed, in drainage type ly...

ÖZET Ülkemizde teknik ve ekonomik olarak sulanabilecek arazi miktarı 8.5 milyon ha olarak hesaplanmış ve bu alanın 2019 yılı itibariyle 6.6 milyon ha'lık kısmı sulamaya açılmıştır. 2023 yılına kadar ise 1.9 milyon ha'lık alanın sulamaya açılması hedeflenmektedir. 2018 yılı itibariyle mevcut sulama şebekelerinin %37'sinde klasik, %41'inde kanalet ve...

ÖZET Ülkemizde teknik ve ekonomik olarak sulanabilecek arazi miktarı 8.5 milyon ha olarak hesaplanmış ve bu alanın 2019 yılı itibariyle 6.6 milyon ha'lık kısmı sulamaya açılmıştır. 2023 yılına kadar ise 1.9 milyon ha'lık alanın sulamaya açılması hedeflenmektedir. 2018 yılı itibariyle mevcut sulama şebekelerinin %37'sinde klasik, %41'inde kanalet ve...

Turkey has a rich flora in terms of gypsophila species. But, there hasn’t been any gypsophila variety which has been developed and brought to the sector until today. Therefore, external dependence is continuing at the production material. In this study, it was aimed to determine the plant spacing on the cut flower performance (30x40 cm, 40x50 cm, 6...

Nitrogen is one of the most important plant nutrients for lettuce (Lactuca sativa L. var. Kitare). However, excess use of N causes environmental and health problems. In this study, the response of lettuce plants to different amount of N and irrigation levels were studied. The experiment was conducted under glasshouse conditions for winter and sprin...

Core Ideas Lettuce yield was decreased by excessive nitrogen fertilization. Deficit irrigation did not cause a decrease in yield. Temperatures, photoperiod, and sunshine duration decreased the nitrate accumulation. Nitrogen is one of the most important plant nutrients for lettuce (Lactuca sativa L. var. Kitare). However, excess use of N causes env...

Evapotranspiration (ET) is one of the most difficult processes in nature. The most accurate and reliable method to determine ET is lysimeter, which is difficult, expensive and time-consuming. On the other hand, ET can be estimated using reference crop evapotranspiration (ETo) and crop coefficient (kc). Determining the amount of evapotranspiration f...

Being one of the agricultural products to be commonly grown and consumed in the world, beans display a wide range of production and sort in Turkey though it is not a native land. Although the beans production is limited to some parts of Turkey, it is commonly cultivated for family consumption both at low and high-altitude territories. However, the...

Due to the climatic changes and the decreasing water resources, it is very important to determine the correct crop water requirement and schedule an appropriate irrigation. FAO methodology based on reference evapotranspiration (ETo) and crop coefficients (kc) is widely used all over the world to determine crop water requirement. For many of the eco...

zet: İnfrared termometre ile ölçülebilen taç sıcaklığı bitki su durumunun bir göstergesi olarak ifade edilmektedir. Taç sıcaklığına dayalı olarak belirlenebilen bitki su stresi indeksi (CWSI) değeri yardımı ile bitki su stresi niceliksel olarak ifade edilmekte ve bu değer sulama programlarının hazırlanması amacıyla kullanılmaktadır. CWSI değeri, Ja...

Core Ideas Different irrigation levels affected the yield and quality components of soybean. Deficit irrigation decreased soybean protein content. Water deficit treatments caused an increase in the oil content in soybean. Soybean can be irrigated to 75% of Class A pan evaporation in semiarid conditions with limited water resources. This study was...

In this study, plant growth parameters of 16 landrace dwarf common bean genotypes collected from Western Mediterranean region of Turkey at different salinity levels were investigated. The salt concentrations were applied 0.5 (regular irrigation water), 2, 4 and 6 dSm-1. The study continued until the first flowering was observed in the plants. The r...

This research was carried out to determine the effect of drip irrigation strategies on yield and quality characteristics of pomegranate (Punica granatum L. cv. Hicaznar) trees during the growing seasons between 2013 and 2015 years at Batı Akdeniz Agricultural Research Institute in Antalya, Turkey. The amount of irrigation water applied was based on...

Özet Toprak su içeriğinin doğru bir şekilde ölçülmesi sulama ile ilgili çalışmalarda su dengesinin kurulmasında kritik öneme sahiptir. Toprak su içeriğinin belirlenmesinde gravimetrik yöntem en doğru sonucu vermesine karşın zaman alıcı ve iş yükünün fazla olması nedeniyle toprak dielektrik sabitine bağlı farklı nemölçerler geliştirilmiştir. Ancak g...

In this study, it was aimed to determine the temporal and spatial changes of reference crop evapotranspiration (ETo) values in Antalya which has high agricultural potential. For this purpose, climate parameters measured by 20 meteorological stations were selected. 15 out of meteorological stations in the provinces and districts of Antalya were sele...

Canopy temperature measured via infrared thermometers is an important parameter to determine crop water stress. The crop water stress index (CWSI) is the most often used index based on difference of canopy-air temperature and vapor pressure deficit (VPD) to detect crop water stress and to schedule irrigation for field crops. The aim of this study i...

The main objectives of this study are to assess crop water stress index (CWSI) and to determine irrigation schedule of pomegranate using infrared thermometer technique. Treatments with three replications were irrigated every three and six days intervals, as much as 0.50 (S1), 0.75 (S2), 1.00 (S3), and 1.25 (S4) of Class A pan evaporation. Additiona...

In this study, seven maize inbred lines representing different tropical, drought tolerant populations and two adapted temperate maize inbred lines were crossed in a half-diallel mating design to determine combining abilities. The genotypes were tested in well-watered (WW) and managed water stressed (WS) conditions in 2013 and 2014. General combinin...

Drought is occurring as a result of global warming in our country and as well as over the world and defined as the precipitation deficit in a certain time period which is lower than that of the normal. It affects negatively all of the living being. Many drought indices have been developed to define the severity and characteristics of drought over t...

This study was carried out to determine the effects of deficit irrigation on evapotranspiration and quality of bermudagrass (Cynodon dactylon L.) turfgrass cultivars under Mediterranean conditions. Eight bermudagrass turf cultivars 'Blackjack', 'Mohawk', 'Princess', 'Riviera', 'Sahara', 'Sultan', 'Swi-1044' and 'Swi-1045' were used. Irrigation expe...

This study was carried out to determine the effect of regular deficit drip irrigation strategies on growth, yield, and yield components, as well as water use efficiency (WUE) under Mediterranean conditions. Peanut (Arachis hypogaea cv. NC-7) crops were grown in the seasons of 2013 and 2014. Irrigation water applications were 0 (I0), 25% (I25), 50%...

The aim of this study is to determine the seasonal water use and water requirements of two sesame varieties (Muganlı-57 and Birkan) irrigated by a drip irrigation system and grown in lysimeter as a second crop, to find out the effects of different deficit irrigation applications on the sesame varieties as well as to determine water-yield relations...

Investigation of canopy temperature and crop water stress index (cwsi) of soybean depending on cultivars. Abstract In order to use current water resources efficiently, plant based irrigation scheduling method among soil, climate and plant based methods is used widely. Infrared thermometers are well developed equipments to measure canopy temperature...

Environmental conditions affect living organism as well as dairy cattle in different ways. Especially, nutrition and climatic parameters such as temperature and humidity have impact on high yielding dairy cattle. Dairy cattle are sensitive to temperature-humidity interaction that is threshold value. Temperature-Humidity Index (THI) is one of the me...

This study was conducted to determine the effects of different salinity levels, (0.7, 4.0, 8.0, 12.0, 16.0 dS m-1) on some physiological parameters of Obez F1, Ferro F1, RS841 F1, which are used as rootstocks in watermelon cultivation. Salty irrigation water was obtained through mixing of NaCl and CaCl2 salt into tap water. When the plants were at...

Temperate maize growing regions are increasingly prone to drought stress which is emerging as a primary constraint to maize productivity. Introgression of tropical sources of drought tolerance into temperate maize breeding may contribute to improving the drought tolerance of the relatively narrow temperate germplasm base that is currently in use. I...

This study was carried out to determine the effects of deficit irrigation on water consumption and visual quality of some turfgrass at the Batı Akdeniz Agricultural Research Institute in 2008. In the study, two different turfgrass, Seaspray and TifBlair, varieties were used. Three different irrigation treatments were examined: 50% (I1), 75% (I2), a...

Bu araştırma, Antalya ilinde çiçek perakendeciliğinin mevcut yapısını ve pazarlama sorunlarını tespit etmek amacıyla yürütülmüştür. Çalışmada tam sayım yapılarak, il merkezinde bulunan 48 adet çiçek perakendecisi ile yüz yüze görüşme yoluyla anket uygulanmıştır. Anket formu aracılığıyla, perakendecilerin demografik yapısı, satış yapılan yerin özell...

THE EFFECTS OF DIFFERENT FERTIGATION STRATEGIES AND DRIPPER DISCARGE RATES ON NITRATE LEACHING IN SANDY SOILS Abstract This study aims to determine and identify the effects of different fertigation strategies on nitrate leaching in soils having sandy soil texture. To this end, the best time to start and end fertigation during irrigation was determi...

Ornithogalum species are important bulbous plants having different uses such as vegetable, ornamental and medicinal. Ornithogalum nutans is one of these species wild collected from nature of Turkey without any artificial propagation and it has been exported for years. In this study, we examine the effects of vegetative and generative propagation me...

In this study, the effects of different salinity levels (0, "control", 2, 4, 8, and 12 dS m-1) on seedling growth of Obez, RS 841 and Ferro F1 pumpkin varieties, widely used around the world as rootstock, were investigated. Seedlings grown under saline conditions were investigated for plant main stem length, plant length, root length, shoot length,...

In this study, the effects of different salt sources (CaCl2, NaCl and KCl) and concentrations, as measured by electrical conductivity, (0 "control", 1, 3, 5, 7 and 9 dS m-1) on seed germination and seedling growth of Ferro, Obez, RS 841 and Strong Tosa F1 pumpkin varieties used as rootstock were investigated. The results revealed that germination r...

An experiment was conducted for two years with three replicates in maize crop using three water table dept (90, 120, and 150 cm) and four EC levels (1.7, 3.8, 5.9 ve 10 dS m-1) and a control plot having no water table. It was determined that saline and shallow water table contributed to significant portion of crop water use. The percentage of contr...

Türkiye, üç önemli gen merkezinin kesiştiği bir bölgede yer alması nedeniyle pek çok bitki türünün anavatanı konumundadır. Türkiye florasının zenginliği aynı zamanda bitkilerin farklı amaçlarla kullanılması için de önemli bir kaynaktır. Bu nedenle florada yer alan türlerin kültüre alınarak süs bitkileri sektöründe kullanım olanaklarının belirlenmes...

Water usage is a vital issue for all agricultural crops as well as for ornamental crops. To obtain high quality flowers, it is essential to supply water when it is required. A problem which is common with cut flower growers are determining when to irrigate and the amount of water to apply. The effect of two irrigation intervals (I 1 : 10 mm pan eva...

This study was carried out to determine the optimum irrigation water amount and interval for carnation plants (Dianthus caryophyllus L.) using the pan evaporation method. The values of class A pan, located inside the greenhouse, were used to determine the irrigation water amount. Irrigation treatments consisted of three irrigation intervals (I1: 1-...

This study was conducted to determine the effects of different irrigation water amounts (k cp 1: 0.25, k cp 2: 0.50, k cp 3: 0.75, k cp 4: 1.00 and k cp 5: 1.25) and irrigation intervals (I 1 : 1-, I 2 : 2-and I 3 : 3-day) on the yield and some quality parameters of carnation plants (Dianthus caryophyllus L. cv. 'Turbo') grown in soil under greenho...

This study was carried out in soilless culture to determine the effects of saline irrigation levels on flowering and flower quality of Freesia hybrids planted in a plastic greenhouse located in Bati Akdeniz Agricultural Research Institute between October 2005 and April 2006 under Mediterranean conditions. In the study, three freesia varieties, Ober...

Drainage is necessary for agricultural production in many humid regions of the world, where it is used to improve crop yields and trafficability by removing excess water from the surface and root zone. In arid regions, drainage is often needed to prevent waterlogging and to control salinity in irrigated fields. Water table depths, crops grown in th...

This study was carried out to determine the effects of bio-control agent applications (Bacillus subtilis and Trichoderma harzianum) on yield and quality parameters of Phalaenopsis (‘Montreal’ and ‘Surabaya’ varieties) grown under glass greenhouse conditions ventilated by fan-pad system. This study was conducted in Batı Akdeniz Agricultural Research...

The study was conducted to investigate the effects of compost applications including organic material on yield and quality characteristics of cut flower A. coronaria L. 'Red Meron' grown in plastic greenhouse under Mediterranean conditions. Three application doses of compost (20, 40, and 80 t ha -1) and a control plot having no compost were tested...

The interest in cut flower cultivation is increasing gradually because of internal market demand, climate advantages of our country and increase on the production of cut flower for export in recent years. 52% of the total cut flower production in Turkey consists of carnation. This study aims to determine the effects of different irrigation levels o...

MB was used in the past mainly by carnation growers for the control of nematodes (Meloidogyne spp) and fusarium wilt (Fusarium oxysporum f.sp. dianthi). Also by gerbera producers for controlling soilborne fungi, namely Fusarium (Oztürk et. al. 2002). In 2000, Turkey reported a consumption of 487.6 tonnes of MB in the horticulture sector including f...

This study was carried out to determine the effects of irrigation on flowering, flower quality and water use efficiency (WUE) of gladiolus (Gladiolus grandiflorus L.) planted in glasshouse in the winter and irrigated by a drip irrigation system under Mediterranean conditions. Two gladiolus varieties, Peter Pears and Eurovision, were used. Three irr...

In this study, it was aimed at calibrating some amprical equations of grass reference evapotranspiration under field and small lysimeter conditions in Antalya region. In the study, Penman-Monteith and FAO versions of Blaney-Criddle, Radiation, Class A Pan and Penman equations were used in order to compute grass reference evapotranspiration utilizin...

Simple, accurate, and nondestructive methods of determining leaf area of plants are important for many experimental comparisons. Determining individual leaf area (LA) of carnation (Dianthus caryophyllos L.) can involve measuring leaf length (L) and width (W). Data were collected from experiments of two carnation cultivars grown under greenhouse con...