Effectiveness of sources and doses of silicon for growth, photosynthetic pigments and cardenolide content in Digitalis mariana Boiss subsp. Heywoodii in vitro. RSD [Internet]. 2023 Jan. 20 [cited 2025 Jun. 29];12(2):e5412239719. Available from: https://ojs34.rsdjournal.org/index.php/rsd/article/view/39719