Yazar "Ayan A.K." için listeleme
-
Contribution of polymers to the vegetative propagation of Hypericum perforatum L
Günes T.; Ayan A.K.; Kurtar E.S.; Günes M.H.; Özyürek C. (2007)In present study, the contribution of two hydrophilic polymers to the vegetative propagation of Hypericum perforatum L.. has been investigated. Poly(acrylamide-g-ethylene diamine tetraacetic acid) polyelectrolyte hydrogels ... -
Effects of explant types and different concentrations of sucrose and phytoharmones on plant regeneration and hypericin content in Hypericum perforatum L
Ayan A.K.; Çirak C.; Kevseroğlu K.; Sökmen A. (Turkiye Klinikleri Journal of Medical Sciences, 2005)Hypericum perforatum L. is a medicinal perennial known as "St. John's wort" in Western Europe and used in the treatment of mild to moderate depression. Hypericin, a dianthrone red pigment, is considered responsible for ... -
Estimation of leaf area in selected Hypericum species
Çirak C.; Odabaş M.S.; Ayan A.K.; Sağlam B.; Kevseroğlu K. (2008)The genus Hypericum has attracted scientific interest for recent years, since it is a source of a variety of compounds including hypericin. The present study was conducted out to develop leaf area prediction models for ... -
Heavy metal contents of St. John's Wort (Hypericumperforatum L.) growing in Northern Turkey
Ayan A.K.; Kizilkaya R.; Cirak C.; Kevseroğlu K. (2010)Hypericum perforatum L. plants representing a total of 35 wild populations were collected from Black Sea region of Turkey at flowering stage and subsequently assayed for some heavy metal contents, namely Cu, Mn, Fe, Zn and ... -
Modeling the effect of temperature on the days to germination in seeds of flue-cured and oriental tobacco (Nicotiana tabacum L.)
Çirak C.; Ayan A.K.; Odabaş M.S.; Çamaş N. (Academic Journals Inc., 2007)In this research, the possibility of prediction of days to germination of seeds for Flue-cured and Oriental tobacco (Nicotiana tabacum L.) by mathematical models based on temperature was investigated. A model, (D = ? - ...
