@inproceedings{paperid:1021542, author = {Azizi, Majid and Ghani, Askar and Ebadi, Mohammad Taghi}, title = {The Ex situ comparison of Two Improved St. John s Wort( Hypericum perforatum) Cultivars with an Iranian Wild population}, booktitle = {28th international Horticultural Congress}, year = {2010}, location = {Lisbon}, keywords = {Hypericum perforatum; Hypericin; Medicinal plants}, }