Native legumes in Minas Gerais State, Brazil
Costa, Nuno Maria de Sousa
Native legumes in Minas Gerais State, Brazil - p. 337-346
The multiplicity of soils, climates and vegetation types in Minas Gerais State has resulted in a large variation in the genera and species of legumes that occur naturally there. A number of these appear to have forage potential. This paper reports on the occurrence, nodulation and resistance to stress conditions of some naturally occurring species, but emphasizes Stylosanthes spp. In observations of natural settings and field nurseries, six different rooting patterns were found in species of Stylosanthes. Three Stylosanthes species had unusually large nodules, while in S. capitata and S. macrocephala few or no nodules were found under natural field conditions. By contrast S. guianensis var. vulgaris, the new species S. debilis, and S. grandifolia showed good nodulation, even on poor soils. Anthracnose, caused by Colletotrichum gloesporioides was the most serious disease of Stylosanthes species in Minas Gerais, though S. macrocephala and S. capitata appeared less susceptible than other species. Root nematodes and stem borers were not a major problem in Minas Gerais.
Stylosanthes
Root nodulation
Disease resistance
Pest resistance
Brazil
Stylosanthes
Nodulación
Resistencia a la enfermedad
Resistencia a las plagas
Brasil
Forage Articles in proceedings Forrajes Artículos en memorias CIAT Externos Biología del suelo Soil biology Serial book chapters
QR 89 .7 B56
Native legumes in Minas Gerais State, Brazil - p. 337-346
The multiplicity of soils, climates and vegetation types in Minas Gerais State has resulted in a large variation in the genera and species of legumes that occur naturally there. A number of these appear to have forage potential. This paper reports on the occurrence, nodulation and resistance to stress conditions of some naturally occurring species, but emphasizes Stylosanthes spp. In observations of natural settings and field nurseries, six different rooting patterns were found in species of Stylosanthes. Three Stylosanthes species had unusually large nodules, while in S. capitata and S. macrocephala few or no nodules were found under natural field conditions. By contrast S. guianensis var. vulgaris, the new species S. debilis, and S. grandifolia showed good nodulation, even on poor soils. Anthracnose, caused by Colletotrichum gloesporioides was the most serious disease of Stylosanthes species in Minas Gerais, though S. macrocephala and S. capitata appeared less susceptible than other species. Root nematodes and stem borers were not a major problem in Minas Gerais.
Stylosanthes
Root nodulation
Disease resistance
Pest resistance
Brazil
Stylosanthes
Nodulación
Resistencia a la enfermedad
Resistencia a las plagas
Brasil
Forage Articles in proceedings Forrajes Artículos en memorias CIAT Externos Biología del suelo Soil biology Serial book chapters
QR 89 .7 B56