Peat-Based Inoculum of <Emphasis Type="Italic">Bradyrhizobium japonicum</Emphasis> and <Emphasis Type="Italic">Sinorhizobium fredii</Emphasis> Supplemented with Xanthan Gum |
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Authors: | G Lorda J D Breccia V Barbeito F Pagliero S Boeris C Castaño A Pordomingo F Altolaguirre M D Pastor |
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Institution: | (1) Depto. de Química, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de La Pampa (UNLPAM), Uruguay 151, 6300 Santa Rosa, La Pampa, Argentina |
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Abstract: | The addition of xanthan to high water retention capacity peat (HWRC) inoculants did not show differences on the survival of
Bradyrhizobium japonicum E109. In low water retention capacity peats (LWRC) however, xanthan increased the survival of B.japonicum significantly. Xanthan showed the best effect at 0.1 g/l for B. japonicum, in contrast to Sinorhizobium fredii USDA205 where the concentrations evaluated (0–1.0 g/l) did not affected significantly its survival. Nevertheless, when the
symbiotic performance on soybean was evaluated, the presence of 0.1 g xanthan/l increased the nodule number for both strains. |
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Keywords: | Inoculant Bradyrhizobium japonicum Xanthan Sinorhizobium fredii Nodulation Soybean |
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