Effect of cold stress on survival and gas exchanges of olive seedlings (Olea europaea L. )

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Mohadjeri Khadijeh; TABARI KOUCHAKSARAEI MASOUD; SADATI SEYED EHSAN; Khodadust Ali

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Journal: JOURNAL OF PLANT ENVIRONMENTAL PHYSIOLOGY Year:2020 | Volume:14 | Issue:56 Page(s): 28-38

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Title

Effect of cold stress on survival and gas exchanges of olive seedlings (Olea europaea L. )

Author(s)

Mohadjeri Khadijeh | TABARI KOUCHAKSARAEI MASOUD | SADATI SEYED EHSAN | Khodadust Ali | Issue Writer Certificate

Keywords

FreezingQ1

Low temperatureQ2

Olea europaea LQ2

PhotosynthesisQ1

Stomatal conductanceQ1

Abstract

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.

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APA: Copy

Mohadjeri, Khadijeh, TABARI KOUCHAKSARAEI, MASOUD, SADATI, SEYED EHSAN, & Khodadust, Ali. (2020). Effect of cold stress on survival and gas exchanges of olive seedlings (Olea europaea L. ). JOURNAL OF PLANT ENVIRONMENTAL PHYSIOLOGY, 14(56 ), 28-38. SID. https://sid.ir/paper/185610/en

Vancouver: Copy

Mohadjeri Khadijeh, TABARI KOUCHAKSARAEI MASOUD, SADATI SEYED EHSAN, Khodadust Ali. Effect of cold stress on survival and gas exchanges of olive seedlings (Olea europaea L. ). JOURNAL OF PLANT ENVIRONMENTAL PHYSIOLOGY[Internet]. 2020;14(56 ):28-38. Available from: https://sid.ir/paper/185610/en

IEEE: Copy

Khadijeh Mohadjeri, MASOUD TABARI KOUCHAKSARAEI, SEYED EHSAN SADATI, and Ali Khodadust, “Effect of cold stress on survival and gas exchanges of olive seedlings (Olea europaea L. ),” JOURNAL OF PLANT ENVIRONMENTAL PHYSIOLOGY, vol. 14, no. 56 , pp. 28–38, 2020, [Online]. Available: https://sid.ir/paper/185610/en

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