Costa, O.A.D., Ferreira, O.G.L., Silva, J.L.S. da, Fluck, A.C., Kröning, A. bahr, Oliveira, L.V., Coelho, R.A.T. and Brondani, W.C. 2018. Yield, structural composition and nutritive characteristics of ryegrass cultivars used to haymaking in lowland soils . Bioscience Journal. 34, 5 (Oct. 2018), 1232–1238. DOI:https://doi.org/10.14393/BJ-v34n5a2018-39405.