Evaluación de la propagación de hyeronima macrocarpa Schltr. (Motilón), en tres tipos de sustratos, en la parroquia Ulba cantón Baños, provincia de Tungurahua.

Abstract

Within the native flora of the Andean region of Ecuador is the species Hyeronima macrocarpa, which is considered a species that provides environmental benefits. This research propose: to evaluate the spread of Hyeronima macrocarpa Schltr. (Motilón) on three types of substrates, in the parish of Ulba, Baños de Agua Santa Canton, Tungurahua province; a completely random experimental design (DCA) was used, in accordance bifactorial 4 (treatments, including the control) x 3 (substrates) and 3 repetitions. The factors studied were: A1 (control), A2 (immersion of the seed in sulfuric acid 30% for 15 minutes), A3 (immersion the seed in water at 100 °C for 5 minutes), A4 ( vegetative material stakes); B1 (black earth 50% + sand 25% + organic fertilizer 25%), B2 (black earth 50% + rice husk 25% + organic fertilizer 25%) and B3 (cloak mountain). The coefficient of variation is expressed in percentage and the Tukey test was performed 5%. Getting results through sexual propagation; the emergence of this species began at 40 days and ended 100 days after sowing, the best treatment evaluated for the emergence percentage was A3B3 (immersion of seeds in water at 100 °C for 5 minutes using substrate mount cloak), presenting emergency 75.33%; for variable height and number of leaves treatment he presented better results was (Immersion seeds in sulfuric acid 30% for 15 minutes using a substrate mount cloak). According to the cost analysis A3B3 (immersion of seeds in water at 100 °C for 5 minutes using substrate mount cloak), this treatment presented a lower production cost, with a value of USD 0.10 per seedling.

KEY WORDS: sexual transmission, pre- germination treatments, substrates.