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Specific relations between some strains of diazotrophs and corn hybrids
Authors:M R Sarić  Zora Sarić  M Govedarica
Institution:(1) Institute of Biology, Faculty of Natural Sciences, Faculty of Agriculture, Novi Sad, Yugoslavia;(2) Institute of Field and Vegetable Crops, Faculty of Agriculture, Novi Sad, Yugoslavia
Abstract:Summary We tested the effect of a large number of diazotrophic strains from the genera Azotobacter, Klebsiella, Escherichia, Derxia, Beijerinckia, and Azospirillum, on nitrogen concentration in four corn hybrids. The range obtained, from highly significant positive to highly significant negative effects, indicates that the strains studied differed in their characters, including the capacity to form useful associations with certain hybrids. The forming of positive associations depended on the specificity of diazotrophic strains and corn hybrids.
Keywords:Associations  Corn hybrids  Diazotroph strains  Genotype  N-concentration
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