Journal
COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS
Volume 44, Issue 22, Pages 3317-3326Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/00103624.2013.848284
Keywords
Arbuscular mycorrhizal species; salinity stress; soil labeling; specific activity; wheat cultivars; P-32 isotope
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Phosphorus (P) behavior and its efficiency in mycorrhizal plants are of great importance. The objective was to evaluate the behavior of soil labeled P absorbed by different mycorrhizal wheat genotypes subjected to saline water. Three wheat genotypes including cultivar Kavir, the local cultivar Roshan, and the mutated line Tabasi T-65-7-1 were inoculated with different species of arbuscular mycorrhiza (AM) including Glomus etunicatum, G. mosseae, and G. intraradices. Plants were irrigated using saline water (electrical conductivity of 13.87 dS m(-1)). The experiment was a factorial with 12 treatments and three replications under greenhouse conditions. Wheat genotypes and AM species significantly affected plant dry weight, specific activity, and total plant activity (P=0.01). A maximum of 1.49-fold increase in specific activity or P uptake per gram of plant dry matter and 3.53-fold increase in plant activity or plant total P uptake resulted by G. etunicatum as compared with control.
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