Leaf anatomy and gas exchange of ornamental sunflower in response to silicon application . Bioscience Journal [online], 2017. [online], vol. 33, no. 4, pp. 833–842. [Accessed14 December 2025]. DOI 10.14393/BJ-v33n4a2017-36559. Available from: https://seer.ufu.br/index.php/biosciencejournal/article/view/36559.