Breeding Legumes for Enhanced Symbiotic Nitrogen Fixation

Abstract

Efficiencies and inefficiencies in the legume/Rhizobium symbiosis - A review.- Improving nitrogen fixation in legumes by plant breeding the relevance of host selection experiments in red clover (Trifolium pratense L.) and subterranean clover (T. subterraneum L.).- A multiple-trait breeding program for improving the symbiosis for N2 fixation between Medicago sativa L. and Rhizobium meliloti.- Selection for improved nitrogen fixation in Glycine max (L.) Merr. and Phaseolus vulgaris L..- Developing a breeding strategy to exploit quantitative variation in symbiotic nitrogen fixation.- Mutation breeding of grain legumes.- Gene centres, a source for genetic variants in symbiotic nitrogen fixation: The symbiotic response of the cultivated pea to Rhizobium leguminosarum strains from Europe and the Middle East.- Field evaluation of symbiotic nitrogen fixation by rhizobial strains using 15N methodology.- Rhizobium inoculation trials designed to support a tropical forage legume selection programme.- Breeding soybeans for the tropics capable of nodulating effectively with indigenous Rhizobium spp..- Effect of plant genotype and nitrogen fertilizer on symbiotic nitrogen fixation by soybean cultivars.- Quantitative assessment of symbiotic nitrogen fixation in diverse mutant lines of field bean (Vicia faba minor).- Host genes in Pisum sativum L. conferring resistance to European Rhizobium leguminosarum strains.- Modification of symbiotic interaction of pea (Pisum sativum L.) and Rhizobium leguminosarum by induced mutations.