Published
2012-01-16
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Effect of four levels of shade on Oreopanax Floribundum germination in nursery conditions

DOI: https://doi.org/10.22490/21456453.930
Section
Artículos de Investigación
Carmen Rosa Montes-Pulido Universidad Nacional Abierta y a Distancia (UNAD); Escuela de Ciencias Agrícolas, Pecuarias y del Medio Ambiente (ECAPMA), Bogotá, Colombia
Jorge Alexander Silva
Jorge Rondón Universidad Nacional Abierta y a Distancia (UNAD); Escuela de Ciencias Básicas, Tecnología e Ingenierías (ECBTI), Bogotá, Colombia

The objective was to determine the effect of four shade levels of on Oreopanax floribundum germination. Under greenhouse, the fruits were placed in sealed plastic bags for 48 hours; they were scarified in river sand and immersed in water for 12hours.Then, they were left on newspaper for two days, in trays with a substrate consisting of organic matter (40%), peat(20%), river sand (20%) and perlite(20%). Four levels of shadow were managed: 90%, 65 %, 33% and control. A positive effect was obtained with use of polyshade in the percentage and speed of seed germination. With polyshade of 90 % was reached a daily germination of 18 % during the first two days, whereas under the polyshade of 65 % and 33 % the germination was 17 %, and 14 %, during 7 and 9 days, respectively. For 39 days of duration of the test under effect of polyshade the total of germinated seeds was between 69 and 70 % and without polyshade in 30 %.