Improvement of the photosynthetic activity of Moldavian dragonhead (Dracocephalum moldavica L.) through foliar application of a nitrophenolate–based biostimulant
Sławomir Kocira, Agnieszka Sujak, Tomasz Oniszczuk, Agnieszka Szparaga, Mariusz Szymanek, Hanna Karakuła-Juchnowicz, Anna Krawczuk and Karol Kupryaniuk