List of Articles Olea europaea L

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  1 - Effect of cold stress on survival and gas exchanges of olive seedlings (Olea europaea L.)
  Khadijeh Mohadjeri Masoud Tabari Kouchaksaraei Sadati Seyed Ehsan Ali Khodadust
  Cold tolerance is one of the important factors in the distribution of plant species. The aim of this study was to investigate the survival and gas exchange responses of olive (Olea europaea L.) seedlings to low temperature and freezing stress. For this purpose, 144 two- More

  Cold tolerance is one of the important factors in the distribution of plant species. The aim of this study was to investigate the survival and gas exchange responses of olive (Olea europaea L.) seedlings to low temperature and freezing stress. For this purpose, 144 two-years-old potted seedlings of olive (cultivar yellow) with averaged height of 30 cm were examined as factorial in a completely random design (CRD) with 3 replications. Seedlings were exposed to six temperature levels (+2, -5, -7, -10, -16, and -20° C) for 1 and 3 hours. Gas exchange parameters such as net photosynthesis rate, transpiration, and stomatal conductance were measured for each treatment in three steps: before stress, immediately after stress, and 12 days after stress. Results showed that in each temperature level net photosynthesis rates, stomatal conductance, and transpiration reduced in both 1 and 3 hours chilling and this reduction was higher in seedlings subjected to 3 hours chilling. Olive seedlings exposed to -10, -16 and -20 °C temperatures were dead while in seedlings subjected to -7 °C and higher temperature (under both 1 and 3 hours chilling) gas exchange variables were recovered on day 12 after the stress. In general, this research revealed that olive seedlings (cultivar yellow) are able to tolerate low temperature up to -7°C for 3 hours. Manuscript profile
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  2 - Extraction and compare of Oleuropin compound in olea europaea L. in three province state of Gilan, Tehran and Fars
  Jaimand, جایمند M.B Rezaee, A.N Ashtiany مصطفی Golipoor
  Phenolic compounds in Olive fruits are important factors to consider in order to evaluate the quality of virgin Olive oil. Several studies concerning phenolic compounds in the Olive have already been carried out. Oleuropein, have pharmacological properties which have a More

  Phenolic compounds in Olive fruits are important factors to consider in order to evaluate the quality of virgin Olive oil. Several studies concerning phenolic compounds in the Olive have already been carried out. Oleuropein, have pharmacological properties which have a antibiotic and antiviral effects. In this research, we study about determination of oleuropein in leaf and fruits of Olea europaea L. from three province of Gilan, Tehran and Fars are colected. After collection of samples in every months for leaves and fruits from June up to December, samples are dried and Extraction was with methanol and determinded by HPLC. In this study, oleuropein in leaves from three proviance of Gilan, Tehran and Fars are 39217, 33665 and 31311 ppm in January respectly, and in fruits are 35328 and 29740 ppm in July and 22095 ppm in September, respectly. These amounts shows that highest are in Gilan provience and Fars have a lowest. Manuscript profile