Browsing by Author "Caliskan, Omer"
Now showing items 1-14 of 14
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Agronomic characteristics of Serapias vomeracea (Burm. f.) Briq. salep orchids
Caliskan, Omer; Kurt, Dursun; Odabas, Mehmet Serhat (Univ Agr Sci & Veterinary Med Cluj-Napoca, 2020)Although salep orchids are annual plants, each new generation emerges larger than their parents. There are no data on the developmental performance of these species that cannot be cultivated due to production difficulties. ... -
Breaking of seed dormancy in Hypericum leptophyllum Hochst., an endemic Turkish species
Camas, Necdet; Caliskan, Omer (Academic Journals, 2011)Seed germination requirements of the endemic Turkish species of Hypericum, Hypericum leptophyllum Hochst. were studied by performing some pre-soaking treatments with the aim of describing suitable germination protocols for ... -
Changes in the contents of main secondary metabolites in two Turkish Hypericum species during plant development
Cirak, Cuneyt; Radusiene, Jolita; Camas, Necdet; Caliskan, Omer; Odabas, Mehmet Serhat (Informa Healthcare, 2013)Context: The genus Hypericum (Guttiferae) has received considerable scientific interest as a source of biologically active compounds. Objective: The study determined the morphogenetic and ontogenetic variation in the main ... -
Comparision of some models for estimation of reflectance of hypericum leaves under stress conditions
Temizel, Kadir Ersin; Odabas, Mehmet Serhat; Senyer, Nurettin; Kayhan, Gokhan; Bajwa, Sreekala Gopalapillai; Caliskan, Omer; Ergun, Erhan (De Gruyter Open Ltd, 2014)Lack of water resources and high water salinity levels are among the most important growth-restricting factors for plants species of the world. This research investigates the effect of irrigation levels and salinity on ... -
Determination of Reflectance Values of Hypericum'S Leaves Under Stress Conditions Using Adaptive Network Based Fuzzy Inference System
Odabas, Mehmet Serhat; Temizel, Kadir Ersin; Caliskan, Omer; Senyer, Nurettin; Kayhan, Gokhan; Ergun, Erhan (Acad Sciences Czech Republic, Inst Computer Science, 2014)The effects of water stress and salt levels on hypericum's leaves were examined on greenhouse-grown plants of Hypericum perforatum L. by spectral reflectance. Salt levels and irrigation levels were applied 0, 1, 2.5 and 4 ... -
Effect of nitrogen on herb production, secondary metabolites and antioxidant activities of Hypericum pruinatum under nitrogen application
Radusiene, Jolita; Marksa, Mindaugas; Ivanauskas, Liudas; Jakstas, Valdas; Caliskan, Omer; Kurt, Dursun; Cirak, Cuneyt (Elsevier, 2019)The optimization of growing conditions using germplasm potentials is an effective way to manage the production and quality of medicinal plant raw materials. The present study aimed to evaluate the effect of mineral nitrogen ... -
Effect of Salt Stress and Irrigation Water on Growth and Development of Sweet Basil (Ocimum basilicum L.)
Caliskan, Omer; Kurt, Dursun; Temizel, Kadir Ersin; Odabas, Mehmet Serhat (De Gruyter Poland Sp Zoo, 2017)This study was conducted to assess the influence of different salinity and irrigation water treatments on the growth and development of sweet basil (Ocimum basilicum L.). Five salinity levels (0.4, 1.00, 2.50, 4.00 and ... -
The effects of salt and drought stress on phenolic accumulation in greenhouse-grown Hypericum pruinatum
Caliskan, Omer; Radusiene, Jolita; Temizel, Kadir Ersin; Staunis, Zydrunas; Cirak, Cuneyt; Kurt, Dursun; Odabas, Mehmet Serhat (Pagepress Publ, 2017)Hypericum pruinatum is a medicinal herb containing several bioactive compounds with important pharmacological activity. In this study, we investigated the effects of the salt 0.03 -control, 1, 2.5, 4 and 8 dS m(-1) of ... -
Estimating Chlorophyll Concentration Index in Sugar Beet Leaves Using an Artificial Neural Network
Caliskan, Omer; Kurt, Dursun; Camas, Necdet; Odabas, Mehmet Serhat (Hard, 2020)The artificial neural network (ANN) method was used in this study for predicting sugar beet (Beta vulgaris L.) leaf chlorophyll concentration from leaves. The experiment was carried out in field conditions in 2015-2016. ... -
Modeling of the individual leaf area and dry weight of oregano (Origanum onites L.) leaf using leaf length and width, and SPAD value
Caliskan, Omer; Odabas, Mehmet Serhat; Cirak, Cuneyt; Odabas, Ferhat (Academic Journals, 2010)The study was aimed to modeling of the individual leaf area and dry weight of oregano ( origanum onites L.) using leaf length, leaf width and SPAD value. Non-destructive approach of modeling can be very useful for plant ... -
The modeling of the relation among the temperature and light intensity of growth in Ocimum basilicum L.
Caliskan, Omer; Odabas, Mehmet Serhat; Cirak, Cuneyt (Academic Journals, 2009)Changes in plant growth caused by the effects of environmental conditions such as temperature and light intensity were intended to be described by plant growth models. The study was aimed to define the relationships between ... -
The quantitative effect of temperature and light intensity at growth in Origanum onites L.
Caliskan, Omer; Odabas, Mehmet Serhat; Cirak, Cuneyt; Radusiene, Jolita; Odabas, Ferhat (Academic Journals, 2010)The study was aimed to define the relationships between temperature, light intensity and growth parameters. Namely, net assimilation rate, relative growth rate, leaf weight ratio, leaf area ratio and specific leaf area for ... -
Secondary Metabolites of Hypericum leptophyllum Hochst., an Endemic Turkish Species
Camas, Necdet; Radusiene, Jolita; Stanius, Zydrunas; Caliskan, Omer; Cirak, Cuneyt (Hindawi Ltd, 2012)In the present study, the presence of the phloroglucinol derivative hyperforin, the naphthodianthrones hypericin and pseudohypericin, the phenylpropane chlorogenic acid and the flavonoids rutin, hyperoside, kaempferol, ... -
Secondary metabolites of Hypericum orientale L. growing in Turkey: variation among populations and plant parts
Cirak, Cuneyt; Radusiene, Jolita; Stanius, Zydrunas; Camas, Necdet; Caliskan, Omer; Odabas, Mehmet Serhat (Springer Heidelberg, 2012)The present study was conducted to determine the variation in the content of several plant chemicals, namely hyperforin, hypericin, pseudohypericin, chlorogenic acid, rutin, hyperoside, isoquercetine, kaempferol, quercitrine ...
