Resumen

CASTRO-RINCON, Edwin; CARULLA-FORNAGUERA, Juan Evangelista  y  CARDENAS-ROCHA, Edgar Alberto. Adaptation of grasses associated with Lotus uliginosus Schkuhr in the high Colombian tropic. Pastos y Forrajes [online]. 2019, vol.42, n.1, pp.13-22. ISSN 0864-0394.

The objective of this study was to evaluate the agronomic performance of 11 grass accessions associated with the legume Lotus uliginosus Schkuhr, at two cutting ages, in the high Andean tropic of Colombia. The trial was conducted at the Marengo Animal Husbandry Center, of the National University of Colombia, in the Mosquera municipality, Cundinamarca, Colombia. Eleven grass accessions associated with the legume and a pure control (Cenchrus clandestinus Hochst. ex Chiov), were evaluated, using a randomized block design with split-strip arrangement and three repetitions. The biomass production was measured when cutting at 45 and 70 days in the rainy and dry seasons. In general, L. uliginosus as well as the associated grasses showed good growth in the establishment stage. The total aerial biomass production was higher in the rainy season and with the 70-day frequency, especially in the associations with Festuca rubra, Festuca arundinacea, Bromus catharticus, Anthoxantum odoratum and Holcus lanatus. The grasses F. rubra, F. arundinacea, B. catharticus and C. clandestinus (naturalized) stood out for their high aerial biomass production, with a higher production than that of the pure control. It is concluded that the associations with the best performance were F. arundinacea and C. clandestinus, the naturalized as well as the introduced one, which stood out for their higher resistance to pests and diseases during the establishment stage, showing the potential of this type of system in the high Colombian Andean tropic.

Palabras clave : biomass; plant establishment; forage legumes.

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