01724naa a2200325 a 450000100080000000500110000800800410001910000210006024500960008126000090017752007210018665000210090765000200092865000300094865000140097865000280099265000190102065000150103965000150105465000310106965000220110065000160112265000130113865000220115165000140117365300150118770000170120270000150121977301640123415337562023-08-18       1996    bl uuuu     u00u1 u    #d1 aKELLER-GREIN, G.  aNatural variation in Brachiaria and existing germoplasm collections.h[electronic resource]  c1996  aResumo: Seven perennial species of African origin-Brachiaria arrecta, B. brizantha, B. decumbens, B. dictyoneura, B. humidicola, B. mutica, and B. ruziziensis-have been used as fodder plants, particularly in tropical America. The history of the commercial cultivars is given, and their most important attributes are described. Access to germplasm diversity is essential for plant cultivar development. The world's major ex situ collections of Brachiaria germplasm are listed, together with descriptions of their holdings and management. The biogeographic origin of major species and the natural variation in terms of morphology and isozymes are described. Needs for future collection and conservation are identified.  aClimatic factors  aEdaphic factors  aGeographical distribution  aGermplasm  aPlant genetic resources  aPlant genetics  aProvenance  aBrachiaria  aDistribuição Geográfica  aGenética Vegetal  aGermoplasma  aPastagem  aRecurso Genético  aTaxonomia  aMorfologia1 aMAASS, B. L.1 aHARSON, J.  tIn: MILES, J. W.; MAASS, B. L.; VALLE, C. B. do (ed.). Brachiaria: biology, agronomy and improvement. Cali: CIAT; Brasília, DF: EMBRAPA-CNPGC, 1996. p. 16-42.