title: Arbuscular mycorrhizas enhance nutrient uptake in different wheat genotypes at high salinity levels under field and greenhouse conditions.
abstract: Since most experiments regarding the symbiosis between arbuscular mycorrhizal (AM) fungi and their host plants under salinity stress have been performed only under greenhouse conditions, this research work was also conducted under field conditions. The effects of three AM species including Glomus mosseae, G. etunicatum and G. intraradices on the nutrient uptake of different wheat cultivars (including Roshan, Kavir and Tabasi) under field and greenhouse (including Chamran and Line 9) conditions were determined. At field harvest, the concentrations of N, Ca, Mg, Fe, Cu, and Mn, and at greenhouse harvest, plant growth, root colonization and concentrations of different nutrients including N, K, P, Ca, Mg, Mn, Cu, Fe, Zn, Na and Cl were determined. The effects of wheat cultivars on the concentrations of N, Ca, and Mn, and of all nutrients were significant at field and greenhouse conditions, respectively. In both experiments, AM fungi significantly enhanced the concentrations of all nutrients including N, K, P, Ca, Mg, Mn, Cu, Fe, Zn, Na and Cl. The synergistic and enhancing effects of co-inoculation of AM species on plant growth and the inhibiting effect of AM species on Na(+) rather than on Cl(-) uptake under salinity are also among the important findings of this research work.
authors.affiliation: Department of Soil Science, College of Agriculture, Tarbiat Modares University, Tehran, Iran.
authors.forename: Baran
authors.initials: B
authors.lastname: Mardukhi
authors.forename: Farhad
authors.initials: F
authors.lastname: Rejali
authors.forename: Gudarz
authors.initials: G
authors.lastname: Daei
authors.forename: Mohammad Reza
authors.initials: MR
authors.lastname: Ardakani
authors.forename: Mohammad Javad
authors.initials: MJ
authors.lastname: Malakouti
authors.forename: Mohammad
authors.initials: M
authors.lastname: Miransari
mesh_terms: D000383:Agriculture / Q000379:methods; D005838:Genotype; D038821:Mycorrhizae; D009747:Nutritional Physiological Phenomena; D054712:Salinity; D014908:Triticum / Q000235:genetics / Q000378:metabolism*