Abstract:
Reports on the natural and laboratory infection of cereals by rhizobium provided the
impetus to embark on research using African landraces of sorghum and millet to study
their interaction with rhizobia. Seven strains of root-nodule bacteria (namely Rhizobium
GHR2, Bradyrhizobium japonicum Tal 110, Sinorhizobium meliloti strain 1, Rhizobium
leguminosarum bv. viceae Cn6, R. leguminosarum bv. viceae strain 30, Rhizobium
NGR234 and Azorhizobium caulinodans ORSS71, hereafter referred to as "rhizobia")
that fix N2, were used to study rhizobial effects on sorghum and millet seedlings grown
aseptically in Leonard jars with Yz strength Hoagland nutrient solution containing 1 mM
KN03•
