List of Articles Number of heads per plant Open Access Article Abstract Page Full-Text 1 - Effect of foliar application of organic growth stimulators on physiological characteristics, yield and percentage of safflower oil (Carthamus tinctorius L.) under levels of drought stress Ali Rashedi Alireza Sirousmehr Mohsen Mousavi nik Ahmad Ghanbari 10.30495/iper.2022.1956384.1786