Track 1-02

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An understanding of the effects of frequency and severity of defoliation on the sward structure of pastures is essential for identifying pasture management strategies that are more efficient in forage usage in tropical environments (Da Silva and Nascimento Jr 2007; Euclides et al. 2010). Some pasture species have not yet been investigated in this way, e.g. cultivars of Cynodon. The potential of this grass in tropical environments suggests that it should be given priority (Pedreira 2010). This study was designed to evaluate the effects of 2 frequencies (90 and 95% light interception) and severities (20 and 30 cm residue) of defoliation on the structural characteristics of Puerto Rico stargrass pasture (Cynodon nlemfuensis) during 3 seasons (fall, winter and spring).

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Structural Characteristics of Porto Rico Stargrass (Cynodon nlemfuensis) Pastures under Different Frequencies and Severities of Defoliation

An understanding of the effects of frequency and severity of defoliation on the sward structure of pastures is essential for identifying pasture management strategies that are more efficient in forage usage in tropical environments (Da Silva and Nascimento Jr 2007; Euclides et al. 2010). Some pasture species have not yet been investigated in this way, e.g. cultivars of Cynodon. The potential of this grass in tropical environments suggests that it should be given priority (Pedreira 2010). This study was designed to evaluate the effects of 2 frequencies (90 and 95% light interception) and severities (20 and 30 cm residue) of defoliation on the structural characteristics of Puerto Rico stargrass pasture (Cynodon nlemfuensis) during 3 seasons (fall, winter and spring).