Publication Date
1985
Location
Kyoto Japan
Description
Forty-two accessions of the morphologically distinct Stylosanthes guiansis ssp. guianensis var. pauciflora collected in Brazil and Venezuela were evaluated for their adaptation to environment in the tropical savanna region of central Brazil. The study was conducted on an Oxisol at the Centro de Pesquisa Agropecuaria dos Cerrados (CPAC), 35 km from Brasilia at latitude 15° 36' S. Results showed that was marked variation in plant yield and, as a group, Brazilian accessions produced more dry matter than Venezuelan accessions. Anthracnose resistance and digestible dry matter content were also markedly higher in the accessions from Brazil. No significant differences in N and Ca contents were observed although Venezuelan accessions tended to have higher P levels. The potential of these types for the savannas of Brazil is discussed. It is suggested that further germ plasm collection should be concentrated in Brazil because of the higher susceptibility of Venezuelan accessions to anthracnose.
Citation
Thomas, D; de Andrade, R P.; and Lenne, J, "Preliminary Observations with Accessions of Stylosanthes guianensis ssp. guianensis var. pauciflora in Brazil" (1985). IGC Proceedings (1985-2023). 19.
(URL: https://uknowledge.uky.edu/igc/1989/session14/19)
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Preliminary Observations with Accessions of Stylosanthes guianensis ssp. guianensis var. pauciflora in Brazil
Kyoto Japan
Forty-two accessions of the morphologically distinct Stylosanthes guiansis ssp. guianensis var. pauciflora collected in Brazil and Venezuela were evaluated for their adaptation to environment in the tropical savanna region of central Brazil. The study was conducted on an Oxisol at the Centro de Pesquisa Agropecuaria dos Cerrados (CPAC), 35 km from Brasilia at latitude 15° 36' S. Results showed that was marked variation in plant yield and, as a group, Brazilian accessions produced more dry matter than Venezuelan accessions. Anthracnose resistance and digestible dry matter content were also markedly higher in the accessions from Brazil. No significant differences in N and Ca contents were observed although Venezuelan accessions tended to have higher P levels. The potential of these types for the savannas of Brazil is discussed. It is suggested that further germ plasm collection should be concentrated in Brazil because of the higher susceptibility of Venezuelan accessions to anthracnose.
