Desempenho agronômico de forrageiras híbridas do gênero urochloa

Abstract

The objective was to evaluate the agronomic performance of six forages of the Urochloa genus among forage hybrids and commercial cultivars, in the search for alternatives in the formation of more productive and adapted pasture areas. The experimental design was a randomized block design, with six treatments with four replications. The evaluated treatments were the commercial forages Marandu, Xaraés, and the hybrid Mavuno, and three more non commercial hybrids (G151, G153, and G156) that belong to the breeding program of tropical forage grasses of the company Barenbrug in Brazil. The response variables were forage production in (kg ha -1), leaf dry matter production in (kg ha-1), stem dry matter production (kg ha-1), percentage of leaf dry matter (%), forage production rate (kg ha-1), and plant height (cm). The productive characteristics of each forage species were estimated with the data. In the water period, the forage production (MST), the leaf blade production (MSLF), and the forage production rate (TPF), the highest production was observed in the forage Xaraés and the hybrid G156, already the plant height ( cm) the Xaraés grass showed greater growth, the percentage of leaf blade (% LF) the hybrid G153 was higher. In the dry period, forage production, leaf blade production, percentage of the leaf blade, and the rate of leaf appearance did not differ between the evaluated forages, whereas height (cm) and stem production, Xaraés grass had the highest production. In this way, the Xaraés grass and the G156 hybrid showed good production in the water period, and in the drought period, all forages had intermediate production.