An Autecological Investigation on Endemic Alkanna Haussknechtii Bornm.(Boraginaceae) Critically Endangered in Turkey

Autecological properties of Alkanna haussknechtii Bornm. (Boraginaceae), a critically endangered endemic in the vicinity of Amasya are presented and discussed. The analysis of N%, P% and K% in the below-ground and above-ground parts of the plant in generative growth period have been determined. In addition, soil samples have been collected from different localities and their physical and chemical aspects have been analyzed. During generative growth period macroelement contents of the below ground parts of the plant are higher than those of the above ground parts due to the "top senescences". It grows loamy, neutral and slightly alkaline soils with high water holding capacity, type of soil medium level calcareous, with low saline soils.