List of Articles کارایی کوانتومی Open Access Article Abstract Page Full-Text 1 - Effect of light intensity on trend of chlorophyll fluorescence parameters changes in stevia (Stevia rebaudiana Bertoni) medicinal plant under cold stress Mehranoosh Emamian Tabarestani Esfandiar Farahmandfar Hemmatollah Pirdashti Yasser Yaghoubian