01106naa a2200217 a 450000100080000000500110000800800410001910000170006024501370007726000090021452004860022365000140070965000220072365300230074565300100076865300110077865300200078970000190080970000170082877300430084513700001998-08-20       1984    bl ---       0--  u    #d1 aUDDIN, M. R.  aCompetition between inoculum and native rhizobia for nodulation of cowpea (Vigna unguiculata (l) Walp)buse of a dark-nodule strain.  c1984  aCoepea rhizobia strains were examined with indigenous populations in nodulating cowpea(Vigna unguiculata (L) Walp) cv. Laura B.strain IRC256 formed dark nodules on cowpea, and were used as the standard against orthodox pink-nodule strain in evaluating nodulating competitiveness. The dark nodule phenotype and intrinsic antibiotic resistance pattern were used to identify the strains in the nodules. Our results showed the usefulness of the dark-nodule strains were not indigenous.  aRhizobium  aVigna Unguiculata  aBacteria faixadora  aCaupi  aCowpea  aFixing bacteria1 aMcLAUGHLIN, W.1 aAHMAD, M. H.  tPlant and Soilgv.81, p.305-307, 1984.