Dapour AE-S. The effects of different seed priming agents on improving emergence, growth, yield and essential oil percentage of purple coneflower (Echinacea angustifolia DC.) under field condition. Fundam. Appl. Agric. [Internet]. 2022 Jun. 30 [cited 2024 Nov. 22];7(2):84-93. Available from: http://f2ffoundation.org/faa/index.php/home/article/view/283