H. Khathayer F. Effect of Tobacco Nicotiana tabacum L. Water Extracts in Growth and Regeneration Lactuca sativa L. leaves Callus and Isolation Nicotine from it. RSCI [Internet]. 2013 Dec. 1 [cited 2025 Oct. 2];24(12):31-54. Available from: https://rsprs.uomosul.edu.iq/index.php/rsci/article/view/47530