Abstract

HINOJOSA Y., L.A. et al. Producción y características agronómicas de cuatro variedades de pasto de corte del género Pennisetum, en Trinidad, Bolivia. Rev.Cient.Agro.Amaz. [online]. 2014, n.3, pp. 28-35. ISSN 2307-9606.

Four varieties of forage crops from genus Pennisetum were evaluated in order to determ ine productivity and agronomic characteristics during three years (October 2007 - October 2010). The forage crops were P. purpureum cv. C-22, P. purpureum cv. Camerún, P. purpureum cv. Morado y P. sp. (Maralfalfa). They were organized in a randomized block design with four treatments and four repetitions, in Trinidad, Bolivia. During the research period, the annual average temperature was 26,2°C and 2260,3 mm of rainfall. The forage crops were cultivated in silt-loam soils, pH slightly acidic (6,10) and poor in organic matter (2,44%). The best production was for P. purpureum cv. C-22 with 164,80 tons wet matter per hectare per year (t MV/ha/año); 30,01 tons dry matter per hectare per year (t MS/ha/año) and 18,27% of dry matter. Meanwhile, Maralfalfa showed the lowest values (p<0,05). Then, all varieties exhibited a similar nutrient content, although P. purpureum cv. Morado showed a Gross Protein Value 11,5%, higher than the rest. It is recommended P. purpureum cv. C-22 for being the most productive during the whole year, having an average content of protein and also for lacking steam and leaf hair which is an advantage for cutting

Keywords : King grass; forage crop; dry matter; wet matter.