List of Articles Chlorophyll a Open Access Article Abstract Page Full-Text 1 - Effect of cold stress on chlorophyll content, chlorophyll fluorescence and activity of oxidative enzymes of barley cultivars (Hordeum vulgare L.) Ali Bashirzadeh Khanlar Dayyan Abdullayev Zaman Mahmudov Open Access Article Abstract Page Full-Text 2 - The effect of hydrogen peroxide pretreatment and copper foliar application on some physiological traits and quantitative yield of SC704 maize hybrid under water deficit stress Abdollah Ayaran Mohamad Reza Dadnia mojtaba alavifazel شهرام لک Tayeb Sakinejad