List of Articles chlorophyll a Open Access Article Abstract Page Full-Text 1 - Effect of mycorrhiza and salicylic acid on yield and physiological parameters of maize (Zea mays) Poria Mazloom mohsen peyman younespor Morteza Sam daliri Amir Abbas Mousavi Mirkalaei Morteza Moballeghi, 10.30495/iper.2021.679540 20.1001.1.76712423.1400.16.62.6.6 Open Access Article Abstract Page Full-Text 2 - Investigation of the effect of plant density and humic acid on paddy yield, water use efficiency, and biochemical traits of direct-seeded rice cultivation (Oryza sativa L.) in northern Iran Manizhe Kalteh Hossein Ajam Norouzi Abolfazl Faraji Abdol Aziz Haghighi Ebrahim Gholamalipour Alamdari 10.30495/iper.2022.688804 20.1001.1.24237671.1401.17.67.10.7 Open Access Article Abstract Page Full-Text 3 - Investigation of the effect of silica spraying and salinity stress on some physiological traits of Camelina sativa oil plant Ebrahim Fani Shokoofeh Hajihashemi 10.30495/iper.2022.1954207.1780 20.1001.1.24237671.1402.18.69.8.6 Open Access Article Abstract Page Full-Text 4 - e 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 Mohammad reza Dadnia Mojtaba Alavifazel shahram Lack Tayeb Sakinejad 10.30495/iper.2023.1974662.1835 Open Access Article Abstract Page Full-Text 5 - 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 6 - 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 Shahram Lac Tayeb Sakinejad