List of Articles عملکرد توتون Open Access Article Abstract Page Full-Text 1 - Possible Use of the Chlorophyll Meter for Diagnosing Nitrogen Deficiency in Early Growth Stage of Tobacco under Field Condition Mohammadtaghi shamelrostami Abbas Biabani Abdollatif Gholizadeh Hosein Sabouri Ebrahim Golamalipour Alamdari