Document Type : Research Paper

Authors

1 shahrekord

2 Associate Professor of Department of Horticulture, Shahrekord University, Shahrekord, Iran

3 Professor of Department of Biotechnology, Shahrekord University, Shahrekord, Iran

4 Associate Professor of Department of Horticulture, Isfahan University of Technology, Isfahan, Iran

5 Assistant Professor of Department of Biotechnology, Shahrekord University, Shahrekord, Iran

Abstract

An experiment was achieved to compare the resistance of different mycorrhizal pistachio rootstocks to salinity and drought stress in completely randomized design with three replications. In this experiment, we used of Funneliformis mosseae and four pistachio species, Badami-e Riz Zarand, Qazvini, Sarakhs and UCB1. In addition, experiment of water stress in 4 levels (100, 80, 60 and 40% FC), and experiment of salinity stress in 4 levels (0.91, 7.57, 16.12 and 24.63 dSm-1), were applied for 60 days. At the end of experiment, different characteristic such as total biomass, leaf area, tissue moisture percentage and electrolyte leakage was measured. Also, during of experiment total chlorophyll, carotenoids and anthocyanin pigments were survey and analyzed. The results indicated that mycorrhizal symbiosis improved total biomass, leaf moisture content under both of drought and salinity stress. Under both stress conditions, tissue moisture content and total leaf chlorophyll content was decreased and anthocyanin content and electrolyte leakage increased and the lowest leaf, stem and root moisture content were observed at the highest drought and salinity levels. UCB1 had the highest biomass and moisture under salinity stress and the highest leaf and stem moisture content and lowest electrolyte leakage was observed in Sarakhs rootstock under drought stress. It seems UCB1 and Sarakhs symbiotic with mycorrhiza can be useful for salinity and drought stress respectively.

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