Breeding soybeans for the tropics capable of nodulating effectively with indigenousRhizobium spp. |
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Authors: | E A Kueneman W R Root K E Dashiell J Hohenberg |
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Institution: | (1) International Institute of Tropical Agriculture, Ibadan, Nigeria |
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Abstract: | Summary Most soybean varieties fail to nodulate effectively in tropical soils unless inoculated with a competitive strain ofRhizobium japonicum. Developing countries in the tropics, with few exceptions, lack inoculant industries to produce and distribute viable inoculants to small farmers and extension programs to teach them to use inoculant. Several soybean genotypes have been identified that nodulate effectively with many strains of the cowpea inoculation group which is ubiquitous in tropical soils of Africa. Soybean genotypes that nodulate and grow well without inoculant application are called promiscuous. Methodologies for incorporation of the promiscuity character into high-yielding backgrounds are discussed.Supported in part by grant 05-0560 from United Nations Development Program to the International Institute of Tropical Agriculture. |
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Keywords: | Breeding Glycine max Nodulation Rhizobium spp Soybean |
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