03684naa a2200733 a 450000100080000000500110000800800410001902400270006010000230008724501240011026000090023452015860024365000210182965000210185065000160187165000250188765000150191265000190192765000190194665000220196565000220198765000120200965000180202165000120203965000190205165000230207065000250209365000230211865000210214165000340216265000160219665000180221265000160223065000250224665000260227165000350229765000220233265000250235465000180237965000280239765000250242565300090245065300240245965300240248365300170250765300220252465300210254665300200256765300270258765300220261465300190263665300220265565300270267765300320270465300200273665300260275665300130278265300250279565300190282070000170283970000210285670000220287777300510289921016192018-12-17       2018    bl uuuu     u00u1 u    #d7 a10.1111/gfs.123832DOI1 aASSIS, G. M. L. de  aIdentification of stylo lines with potential to compose mixed pastures with higher productivity.h[electronic resource]  c2018  aForage legumes from the genus Stylosanthes are frequently used as pasture cover crops with positive effects in controlling weeds, soil fertility and crop yield while providing livestock feed and additional income for farmers through seed production. Stylosanthes guianensis is native to South America and extensively grown worldwide. Therefore, efforts to improve this species may help the sustainability of livestock production in pasture areas managed with this legume. We evaluated 12 sister lines spread through seeds under clippings in the western Amazon region, Brazil. The results were analysed using the methodology of mixed models. Five sister lines mixed with the grass Brachiaria brizantha were evaluated under continuous grazing for two consecutive years. We estimated the genetic and phenotypic parameters of the forage legume and then identified and validated, under grazing, the sister lines most promising to be used in an area of the western Brazilian Amazon. Total drymatter yield, soil coverage, height before clipping, height after clipping and seed production showed low‐to‐moderate broad‐sense heritability (0.1?0.5), contrasting with reduced genetic variability for the characters associated with nutritive value. The S. guianensis lines had, on average, 278 g/kg of crude protein in the dry matter of the leaves and 200 g/kg in the stems, suggesting that the use of this species may help to overcome the low protein content of tropical pastures. There are promising stylo lines that can be used in mixed pastures in humid tropical regions.  aAgronomic traits  aAnimal nutrition  aBeef cattle  aChemical composition  aCrop yield  aForage grasses  aForage legumes  aForage production  aGenetic variation  aLegumes  aMixed grazing  aNellore  aPlant breeding  aUrochloa brizantha  aBrachiaria Brizantha  aCampo Experimental  aCapim Brachiaria  aCaracterísticas Agronômicas  aEstilosante  aGado de Corte  aGado Nelore  aGramínea Forrageira  aLeguminosa Forrageira  aMelhoramento Genético Vegetal  aNutrição Animal  aPastagem Consorciada  aProdutividade  aStylosanthes Guianensis  aVariação Genética  aAcre  aAmazonia Occidental  aAmazônia Ocidental  aEmbrapa Acre  aFazenda Manjerona  aFitomejoramiento  aGanado de carne  aLeguminosas forrajeras  aNutrición animal  aPastoreo mixto  aPastos forrajeros  aRaza de bovinos Nelore  aRendimiento de los cultivos  aRio Branco (AC)  aSenador Guiomard (AC)  aTropical  aVariación genética  aWestern Amazon1 aBEBER, P. M.1 aMIQUELONI, D. P.1 aRESENDE, R. M. S.  tGrass Forage Sciencegv. 73, p. 897-906, 2018.