Abstract
The objective of this study was to evaluate grass and legume species in the Dry, Rainy and Windy seasons in Quintana Roo, Mexico for two years. Treatments consisted of harvests every 3, 6, 9 and 12 wk of regrowth. Species reached their highest dry matter (DM) yield and development in the rainy season. The highest forage yield was obtained at 12 wk regrowth (4.1 and 1.8 t DM ha-1 for grasses and legumes, respectively) and was different (P<0.05) from other regrowth ages. Plant height and sward cover increased with time. Interactions season by species, regrowth age by species and season by regrowth age were significant (P<0.05) for annual DM yields, height and sward cover variables. The highest (P<0.05) DM yield was observed in Brachiaria sp. (18 t DM ha-1.) followed by Paspalum atratum (17 t), while Panicum maximum cv. likoni showed the lowest DM yields, 13 t. Cratylia argentea and Crotalaria juncea were the more productive legumes, 9.2 and 9.4 t DM ha-1, respectively. It can be concluded that season and regrowth age affects dry matter yield in all evaluated species.
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