Ahmed Yaseen MA, Ahmed Fatkhan ZA-D. Response of fig seedlings cv. Aswad Diyala to biochar application and tryptophan foliar spray . Plant Sci. Today [Internet]. 2025 Jun. 10 [cited 2025 Dec. 5];12(2). Available from: https://horizonepublishing.com/index.php/PST/article/view/7632