| Seed yield, oil content and fatty acids composition of safflower (Carthamus tinctorius L.) grown in northern Turkey conditions N Çamaş, C Çırak, E Esendal Anadolu Tarım Bilimleri Dergisi 22 (1), 98-104, 2007 | 179 | 2007 |
| Morphogenetic and diurnal variation of hypericin in some Hypericum species from Turkey during the course of ontogenesis C Çirak, B Sağlam, AK Ayan, K Kevseroğlu Biochemical Systematics and Ecology 34 (1), 1-13, 2006 | 94 | 2006 |
| Soyada kuraklik stresi C Çırak, E Esendal Anadolu Tarım Bilimleri Dergisi 21 (2), 231-237, 2006 | 93 | 2006 |
| Variation of bioactive secondary metabolites in Hypericum origanifolium during its phenological cycle C Çirak, J Radušienė, L Ivanauskas, V Janulis Acta Physiologiae Plantarum 29, 197-203, 2007 | 84 | 2007 |
| Hypericum species as sources of valuable essential oils A Bertoli, C Cirak, JAT Silva Med. Aromat. Plant Sci. Biotechnol 5 (1), 29-47, 2011 | 75 | 2011 |
| Breaking of seed dormancy in a Turkish endemic Hypericum species: Hypericum aviculariifolium subsp. depilatum var. depilatum by light and some pre-soaking treatments C Çırak, K Kevseroğlu, AK Ayan Journal of Arid Environments 68 (1), 159-164, 2007 | 72 | 2007 |
| Hypericin and Pseudohypericin Contents in Some Hypericum. Species Growing in Turkey AK Ayan, C Çirak Pharmaceutical biology 46 (4), 288-291, 2008 | 71 | 2008 |
| The effects of salt and drought stress on phenolic accumulation in greenhouse-grown Hypericum pruinatum O Caliskan, J Radusiene, KE Temizel, Z Staunis, C Cirak, D Kurt, ... Italian Journal of Agronomy 12 (3), 2017 | 68 | 2017 |
| Relationships between seed yield and some characters of safflower (Carthamus tinctorius L.) cultivars grown in the Middle Black Sea Conditions. N Çamaș, AK Ayan, C Çırak Proceedings of the VIth International Safflower Conference, İstanbul-Turkey …, 2005 | 68 | 2005 |
| Variation of bioactive substances and morphological traits in Hypericum perforatum populations from Northern Turkey C Çirak, J Radušienė, BS Karabük, V Janulis Biochemical Systematics and Ecology 35 (7), 403-409, 2007 | 63 | 2007 |
| The effects of light and some presoaking treatments on germination rate of St. John's Wort (Hypericum perforatum) seeds. C Çırak, AK Ayan, K Kevseroğlu | 63 | 2004 |
| The quantitative effects of temperature and light intensity on hyperforin and hypericins accumulation in Hypericum perforatum L MS Odabas, J Radusiene, N Camas, V Janulis, L Ivanauskas, C Cirak Journal of Medicinal Plants Research 3 (7), 519-525, 2009 | 59 | 2009 |
| Isırganotu (Urtica spp.)'nun ekonomik önemi ve tarımı AK Ayan, Ö ÇALIŞKAN, C ÇIRAK Ondokuz Mayıs Üniversitesi Ziraat Fakültesi Dergisi (. Anadolu Tarım …, 2006 | 59 | 2006 |
| Essential oil composition and variability of Hypericum perforatum from wild populations of northern Turkey C Çırak, A Bertoli, L Pistelli, F Seyis Pharmaceutical Biology 48 (8), 906-914, 2010 | 56 | 2010 |
| Effects of explant types and different concentrations of sucrose and phytoharmones on plant regeneration and hypericin content in Hypericum perforatum L. AK Ayan, C Çirak, K Kevseroğlu, A Sökmen Turkish journal of agriculture and forestry 29 (3), 197-204, 2005 | 54 | 2005 |
| Effect of nitrogen on herb production, secondary metabolites and antioxidant activities of Hypericum pruinatum under nitrogen application J Radušienė, M Marksa, L Ivanauskas, V Jakštas, Ö Çalişkan, D Kurt, ... Industrial Crops and Products 139, 111519, 2019 | 51 | 2019 |
| Secondary metabolites of seven Hypericum species growing in Turkey C Cirak, J Radusiene, V Jakstas, L Ivanauskas, F Seyis, F Yayla Pharmaceutical biology 54 (10), 2244-2253, 2016 | 51 | 2016 |
| Changes in the contents of main secondary metabolites in two Turkish Hypericum species during plant development C Cirak, J Radusiene, N Camas, O Caliskan, MS Odabas Pharmaceutical biology 51 (3), 391-399, 2013 | 50 | 2013 |
| Önemli tıbbi bitkiler olarak Hypericum türleri C Çırak, D Kurt Journal of Aegean Agricultural Research Institute (Turkey) 24 (1), 2014 | 48 | 2014 |
| Morphogenetic and diurnal variation of total phenols in some Hypericum species from Turkey during their phenological cycles AK Ayan, P Yanar, C Cirak, M Bilgener Bangladesh Journal of Botany 36 (1), 39-46, 2007 | 48 | 2007 |
