New Stylosanthes guianensis for tropical grasslands


Autoria(s): Grof, B.; Fernandes, C. D.; Fernandes, ATF; Gomide, J. A.; Mattos, WRS; DaSilva, S. C.
Contribuinte(s)

Universidade Estadual Paulista (UNESP)

Data(s)

20/05/2014

20/05/2014

01/01/2001

Resumo

Hybrid stylos (Stylosanthes guianensis var. vulgaris x var. pauciflora) with durable, quantitative resistance to anthracnose, mid-season harvest maturity date (early-July), high DM and seed yields have been selected at the Embrapa Beef Cattle Research Center, Campo Grande, Brazil. The hybrids displayed improved forage traits in Brazil, the native habitat and major center of diversity of the species and its pathogen, as well as in vastly different ecosystems. Dry forage yields and anthracnose resistance of superior selections and their composites were equal, in some instances, significantly better, than those of cv. Mineir (a) over tildeo in multilocational trials situated in the Cerrados from lat. 6degrees S to lat. 20degrees S. Selected hybrids performed well in comparison with the highly successful CIAT 184 (cv.Reyan II) on Hainan Island, China. Composites have also shown good promise in seed multiplication plots in Queensland, Australia. A positive attribute of composite hybrids is their great genetic diversity in contrast to pure-line cultivars with a relatively narrow genetic base. These truly tropical forms of stylo are best adapted to regions with >1500mm average annual rainfall.

Formato

526-527

Identificador

Proceedings of the Xix International Grassland Congress. Piracicaba: Fundação Estudos Agrarios Luiz Queiroz (fealq), p. 526-527, 2001.

http://hdl.handle.net/11449/39218

WOS:000184566200244

Idioma(s)

eng

Publicador

Fundação Estudos Agrarios Luiz Queiroz (fealq)

Relação

Proceedings of the Xix International Grassland Congress

Direitos

closedAccess

Palavras-Chave #Stylosanthes guianensis #intervarietal hybrids #agronomic attributes #anthracnose resistance
Tipo

info:eu-repo/semantics/conferencePaper