%0 Journal Article %T Evaluation of Chlorophyll Fluorescence and Biochemical Traits of Lettuce under Drought Stress and Super Absorbent or Bentonite Application %A Valizadeh, Akram %A Nemati, Seyyed Hossein %A Tehranifar, Ali %A Emami, Hojat %J Journal of Stress Physiology and Biochemistry %@ 1997-0838 %D 2014