RESUMO Este estudo teve como objetivo avaliar, no outono, as características morfogênicas de oito gramíneas nativas da região central do Rio Grande do Sul, classifi cadas sob uma tipologia funcional, segundo o teor de matéria seca e a área foliar específi ca em A, B, C, D: Axonopus affi nis (A), Palavras-chave: bioma pampa, fi locrono, tipos funcionais de plantas. ABSTRACT The morphogenetic characteristics of eight native grasses of South Brazil were evaluated during autumn. They were classifi ed in a functional typology, according to dry matter content and specifi c leaf area (A, B, C, D): Axonopus affi nis (A), Andropogon lateralis (B), Paspalum notatum (B), Paspalum plicatulum (C), Piptochaetium montevidense (C) Aristida laevis (D), Saccharum angustifolius (D) and Sorghastrum pellitum (D), under two nitrogen (N) fertilization levels (zero and 200kg ha -1 N). Experimental design was completely randomized in a factorial arrangement: eight (species) x two (N levels) with three replicates or four (functional types) x two (N levels
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