Volume 7, Issue 27 (vol. 7, no. 27 2019)                   2019, 7(27): 19-30 | Back to browse issues page

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Nobakht P, Ebadi A, Parmoon G, Nickhah Bahrami R. Study role H2O2 in Photosynthetic pigments Peppermint (Mentha piperita L) on Water stress conditions.. Plant Process and Function 2019; 7 (27) :19-30
URL: http://jispp.iut.ac.ir/article-1-577-en.html
1- Faculty of Agriculture, University of Mohaghegh Ardabil
2- Faculty of Agriculture, University of Mohaghegh Ardabil , ebadi@uma.ac.ir
3- Agriculture Research and Education Center, Ardabil
Abstract:   (2823 Views)

In order creation tolerant stimulate signal to drought stress in Peppermint, experimental for factorial in a randomized completely design by three repeat in was conducted researcher greenhouse Faculty Agriculture University of Mohaghegh Ardabili in 2015. Treatments include drought stress in three level (85, 55 and 35 percentage of field capacity) and spraying H2O2 in four level (0, 2.5, 5 and 7.5 mM) and characteristics including photosynthetic pigments (chlorophyll a, b, total and b/a), pigments auxiliary (carotenoids, anthocyanin, flavonoids and phenolic compounds) and pigments fluorescence index (Fv/F0, Fv/Fm, F′v/F′m, qP, qNP and ˚PSII), SPAD and dry weight plant. The result showed, main effect drought stress and H2O2 had effected significant in examined characteristics. Stress cause reduce photosynthetic pigments, pigments auxiliary (except carotenoids), increased fluorescence index (except Fv/F0 and qP) and decrease dry weight plant (25%). Generally can say stress because reduce plant photosynthetic capacity and reduce production biomass, spraying concentrations of moderate H2O2 also can be used as a signal to improve photosynthetic systems operate.

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Type of Study: Research | Subject: Droughts Stress
Received: 2017/03/5 | Accepted: 2017/07/22 | Published: 2019/02/3

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