Cultivar and pH effects on competition for nodule sites between isolates of Rhizobium in beans

@article{Vargas2005CultivarAP,
  title={Cultivar and pH effects on competition for nodule sites between isolates of Rhizobium in beans},
  author={Alvaro A. T. Vargas and Peter H. Graham},
  journal={Plant and Soil},
  year={2005},
  volume={117},
  pages={195-200}
}
Two experiments were carried out to evaluate the effect of acidity on bean-Rhizobium competition for nodule sites. SevenPhaseolus vulgaris host cultivars differing in acid-pH tolerance were grown in sand culture, and irrigated using a sub-irrigation system and nutrient solutions of pH 4.5, 5.0, 5.5, and 6.0. A mixed inoculant of two antibiotically markedRhizobium leguminosarum bvphaseoli strains CIAT899 (acid-tolerant) and CIAT632 (acid-sensitive) was used. The acid-tolerant CIAT899 dominated… CONTINUE READING

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