Effect of altitude and defoliation frequency in the quality and growth of Kikuyu grass (Cenchrus clandestinus)

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dc.creatorMiguel Alejandro Escobar Charry
dc.creatorEdgar Alberto Cárdenas Rocha
dc.creatorJuan Evangelista Carulla Fornaguera
dc.date2020
dc.date.accessioned2026-07-07T03:30:52Z
dc.descriptionThis study aimed at determining the nutritional efficiency of Kikuyu grass, when it is cultivated at different altitudes and defoliated with a different number of leaves per tiller. Four farms, with Kikuyu pastures (Cenchrus clandestinus), were selected, two in an average altitude of 2,552 m.a.s.l. and two in average altitude of 2,914 m.a.s.l. In each farm, there were established eight plots of 4 m2 each (four treatments, two replicates). For 10 months, the pastures were defoliated when they presented 4, 5, 6, and 7 leaves per tiller (treatments) at 5 cm above ground when 90% of the tillers reached the number of leaves corresponding to each treatment. Data were analyzed as serial experiments using a completely randomized block (farms) design with an analysis of variance. The leaf appearance interval was higher for the highest altitude (8 vs. 10 days) but vary among treatments at a lower altitude (P<0.05). Pastures at higher altitudes were shorter (8.9 vs. 13.5 cm), but its height varied among treatments depending on the altitude (P<0.001). The quality of the pastures was similar, except for the ones with seven leaves per tiller at 2,552 m.a.s.l. that had less protein and in vitro dry matter digestibility (P<0.01). The nutrient yield was higher for the pastures cultivated at 2,552 m.a.s.l. (P<0.001), and, at this altitude, pastures defoliated with five leaves had the largest nutrient yield. The Kikuyu cultivated at higher altitudes grows slowly and yield fewer nutrients independently of the number of leaves per tiller.
dc.formatapplication/pdf
dc.identifier0304-2847
dc.identifierhttps://www.redalyc.org/articulo.oa?id=179962699012
dc.identifierhttps://www.redalyc.org/journal/1799/179962699012/
dc.identifierhttps://www.redalyc.org/journal/1799/179962699012/html/
dc.identifierhttps://www.redalyc.org/journal/1799/179962699012/179962699012.epub
dc.identifierhttps://www.redalyc.org/journal/1799/179962699012/movil
dc.identifier10.15446/rfnam.v73n1.77330
dc.identifier.urihttp://hdl.handle.net/123456789/436037
dc.languageen
dc.publisherUniversidad Nacional de Colombia
dc.relationhttp://www.redalyc.org/revista.oa?id=1799
dc.rightsRevista Facultad Nacional de Agronomía - Medellín
dc.sourceRevista Facultad Nacional de Agronomía - Medellín (Colombia) Num.1 Vol.73
dc.subjectAgrociencias
dc.titleEffect of altitude and defoliation frequency in the quality and growth of Kikuyu grass (Cenchrus clandestinus)
dc.typeartículo científico

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Revista Facultad Nacional de Agronomía - Universidad Nacional de Colombia