Publication Date
1985
Location
Kyoto Japan
Description
Brazil has a wealth of native legumes in Stylosanthes, Centrosema and Zomia in soils with pH 4.2-6.5. Collection of those with pasture potential is needed before elimination by agricultural development. Main ecological zones for legume collection include the Cerrados, Amazonia and the Caatinga. Acid-soil factors determining legume adaptation are discussed. Efficient root absorption in the presence of high Al saturation is critical. Increased Ca migration into subsoils through the use of appropriate compounds in needed. Native legumes like Stylosanthes species from areas with pH 4.2-5.4 have potential for oxisols-ultisols. Anthracnose resitance is essential in all Stylosanthes species, and in addition high seed production in S. guianensis (tardio ). C. pubescens and Leucaena are poorly adapted to oxisols-ultisols so suitable breeding programs have been developed with promising results.
Citation
Hutton, E M. and de Sousa, F B., "Collecting and Breeding Legumes for Brazilian Tropical Pastures" (1985). IGC Proceedings (1985-2023). 8.
(URL: https://uknowledge.uky.edu/igc/1985/ses2/8)
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Collecting and Breeding Legumes for Brazilian Tropical Pastures
Kyoto Japan
Brazil has a wealth of native legumes in Stylosanthes, Centrosema and Zomia in soils with pH 4.2-6.5. Collection of those with pasture potential is needed before elimination by agricultural development. Main ecological zones for legume collection include the Cerrados, Amazonia and the Caatinga. Acid-soil factors determining legume adaptation are discussed. Efficient root absorption in the presence of high Al saturation is critical. Increased Ca migration into subsoils through the use of appropriate compounds in needed. Native legumes like Stylosanthes species from areas with pH 4.2-5.4 have potential for oxisols-ultisols. Anthracnose resitance is essential in all Stylosanthes species, and in addition high seed production in S. guianensis (tardio ). C. pubescens and Leucaena are poorly adapted to oxisols-ultisols so suitable breeding programs have been developed with promising results.
