Forage yield and morphogenesis of Megathyrsus maximus cultivars in Roraimas’s savannas ; Producción de forraje y morfogénesis de cultivares de Megathyrsus maximus en las sabanas de Roraima ; Produtividade de forragem e morfogênese de cultivares de Megathyrsus maximus nos cerrados de Roraima

In order to evaluate the forage productivity and the morphogenic and structural characteristics of Megathyrsus maximus cultivars (Massai, Mombasa, Kenya, Tamani, Tanzania and Zuri), an experiment was conduct under natural environmental conditions in the savannahs of Roraima. The highest yields of green dry matter (GDM) were found with cultivars Zuri (4,317 kg ha-1) and Mombasa (4,115 kg ha-1), followed by Kenya (3,868 kg ha-1) and Tamani (3,755 kg ha-1), while Massai (3,341 kg ha-1) and Tanzania (3,225 kg ha-1) were the least productive. GDM yield was directly correlated with LAI and inversely... Mehr ...