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Aiuminium tolerance of durum wheat germplasm
Authors:T Cosic  M Poljak  M Custic  Z Rengel
Institution:(1) Institute for Agroecology, Faculty of Agriculture, Svetosimunska 25, 41000 Zagreb, Croatia;(2) Department of Plant Science, Waite Agricultural Research Institute, University of Adelaide, 5064 Glen Osmond, S.A., Australia
Abstract:Summary Aluminium tolerance of Macedonian durum wheat (Triticum turgidum L. conv. durum (Desf.) MacKey) germplasm was evaluated in nutrient solutions containing 0, 74 or 148 mgrM of total Al. Relative root length (148 mgrM Al/0 Al) of various genotypes ranged from 41 to 72% (from moderately sensitive to moderately tolerant to Al). No genotype with Al tolerance close to that of very tolerant T. aestivum cultivar Atlas-66 was found. Seed Ca concentration was positively (r=0.64, Ple0.05) and seed Fe concentration negatively (r=–0.71, Ple0.05) related to the relative root growth. Such a significant correlation was not obtained for seed concentrations of other nutrients or seed protein content.Abbreviations HSD Tukey's Honestly Significant Difference - RRL-2 relative root length, in % (74 mgrM total Al/0 mgrM Al) - RRL-4 relative root length, in % (148 mgrM total Al0 mgrM Al)
Keywords:aluminium  durum wheat  germplasm  root growth  screening  seed calcium  tolerance  Triticum turgidum conv  durum
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