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Breeding Centrosema pubescens better adapted to the acid infertile soils of South America



Breeding Centrosema pubescens better adapted to the acid infertile soils of South America



Proceedings of the XIV International Grassland Congress, Lexington, Kentucky, June 15-24, 1981: 215-218



Lines of C. pubescens and seven other Centrosema species were evaluated in the greenhouse and field on Carimagua oxisol (pH 4.5, 90% Al saturation). Most C. pubescens lines had moderate acid tolerance, while C. macrocarpum and C. schiedeanum were highly tolerant. The degree of tolerance was negatively correlated with Al uptake. Five promising C. pubescens lines and one line each of C. macrocarpum and C. schiedeanum were selected for crosses aimed at increasing the tolerance of C. pubescens.

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