The evaluation of physiological and biochemical traits of olive trees cvs. Zard and Direh under heat stress

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Ajani Ahmad; SOLEIMANI ALI; ZEINANLOO ALI ASGHAR; SEIFI ESMAEIL

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Journal: Iranian Journal of Horticultural Science Year:2021 | Volume:51 | Issue:4 Page(s): 785-795

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Title

The evaluation of physiological and biochemical traits of olive trees cvs. Zard and Direh under heat stress

Author(s)

Ajani Ahmad | SOLEIMANI ALI | ZEINANLOO ALI ASGHAR | SEIFI ESMAEIL | Issue Writer Certificate

Keywords

Heat stressQ1

oil yieldQ2

Olea europaea L.Q2

photosynthesisQ1

prolineQ2

Abstract

The physiological and biochemical traits of 12-year-old olive trees cvs. Zard and Direh were studied in response to thermal fluctuations during growing seasons in Tarom region (Zanjan province, NW of Iran) for two successive years 2017-2018. The experiment was carried out as split plots in time based on complete randomized block design (cultivar as main plot and time as sub-treatment). The sampling and data recording were performed during four different time including; May, July, August and September correspond to the 28, 45, 44 and 36 ° C, respectively. The results showed that the photosynthesis rate of cv. Direh during stressful high temperature conditions at July, and in compare to May decreased two times more than cv. Zard. Cultivar Zard, in spite of its high photosynthesis rate, showed lower amount of cumulative shoot growth and dry weight, which was mainly due to the large amount of fruit yield efficiency in this cultivar. The proline accumulation in leaf tissue of ‘ Direh’ failed to play a constructive role in developing higher Heat stress tolerance in this cultivar. The soluble carbohydrates concentration in ‘ Zard’ was higher than ‘ Direh’ during all period of study. In general, cv. Zard had more tolerance to increased Heat stress during growth season.

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APA: Copy

Ajani, Ahmad, SOLEIMANI, ALI, ZEINANLOO, ALI ASGHAR, & SEIFI, ESMAEIL. (2021). The evaluation of physiological and biochemical traits of olive trees cvs. Zard and Direh under heat stress. IRANIAN JOURNAL OF HORTICULTURAL SCIENCES (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), 51(4 ), 785-795. SID. https://sid.ir/paper/387913/en

Vancouver: Copy

Ajani Ahmad, SOLEIMANI ALI, ZEINANLOO ALI ASGHAR, SEIFI ESMAEIL. The evaluation of physiological and biochemical traits of olive trees cvs. Zard and Direh under heat stress. IRANIAN JOURNAL OF HORTICULTURAL SCIENCES (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES)[Internet]. 2021;51(4 ):785-795. Available from: https://sid.ir/paper/387913/en

IEEE: Copy

Ahmad Ajani, ALI SOLEIMANI, ALI ASGHAR ZEINANLOO, and ESMAEIL SEIFI, “The evaluation of physiological and biochemical traits of olive trees cvs. Zard and Direh under heat stress,” IRANIAN JOURNAL OF HORTICULTURAL SCIENCES (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), vol. 51, no. 4 , pp. 785–795, 2021, [Online]. Available: https://sid.ir/paper/387913/en

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