Effect of Arbuscular Mycorrhizal Fungus on Resistance Enhancement of UCB1 Plants to Salt Stress

Message:
Article Type:
Research/Original Article (دارای رتبه معتبر)
Abstract:

To study the effect of arbuscular mycorrhizal fungus on salt resistance of UCB1 pistachio rootstock, a greenhouse experiment was achieved as factorial based on a completely randomized design with two factors of arbuscular mycorrhiza at two levels (with and without mycorrhiza) and water salinity at four levels (EC0.5 as control, EC5, EC10 and EC15 dS.m-1) with five repetitions. 18-month-old UCB1 plants propagated by tissue culture were obtained from Touba company in Kerman and inoculated with Funneliformis mosseae. Plants were grown for 70 days in greenhouse conditions (30±3 ºC and 32% of average relative humidity) and after ensuring of root colonization, they were subjected to salt stress for two months. The results showed that salinity caused a decrease in dry weight, stem height, number and surface of leaves, relative water content of leaves and phosphorus, potassium and magnesium uptake, while the amount of proline and total soluble sugars, sodium and chloride in leaves and roots were increased compared to control. Root symbiosis of UCB1 seedlings with arbuscular mycorrhizal fungus significantly mitigate the adverse effects of salinity stress compared to non-mycorrhizal seedlings. Root colonization of UCB1 pistachio seedlings was decreased under salinity stress. Based on the results, the inoculation of UCB1 plants with the above arbuscular mycorrhiza led to increase in salt stress resistance.

Language:
Persian
Published:
Journal of Pistachio Science and Technology, Volume:7 Issue: 13, 2023
Pages:
38 to 56
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