Browsing by Author "Chimborazo Gómez, Mercy Alexandra"

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    Evaluación agronómica de plántulas de yagual (Polylepis Incana) propagadas por estacas, utilizando tres tipos de sustratos y dos tipos de enraizadores en Laguacoto I, cantón Guaranda, provincia Bolívar
    (Universidad Estatal de Bolívar . Facultad de Ciencias Agropecuarias . Escuela de Ingeniería Agronómica, 2014) Chimborazo Gómez, Mercy Alexandra; Fierro, Sonia
    This test of yagual asexual stake Propagation (Polylepis incana) using three types of substrate and two types of hormones it was made in the province Bolivar, Veintimilla parish, sector Laguacoto I of the State University of Bolivar” was made it being based on the method of the observation, allowing to have one greater vision of the handling and production of the stakes of yagual, being able to obtain results real. In last times deforestation has be one of the factors main it stops that forests natural be disappearing quickly, mainly the native species like the yagual; for that reason one looks for to find the form simplest of reproduction by means of use of substrates and hormones. The present investigation it is justified because when evaluating the process of yagual asexual stake multiplication , using substrates and hormones. The objectives raised in this investigation were: To determine the morphologic characteristics that they present/display plántulas of yagual in each one of the treatments. To establish the type of substrate and the hormone more adapted for the propagation of this plant. To make an economic analysis Relation Benefit Cost B/C. A design was used Design of Complete Blocks at random (DBCA) in factorial adjustment 3 x2 + 1 with 3 Repetitions. The factor To corresponded to three types of substrates: A1: Black earth 75% + Sand 25%; A2: Black earth 75% + Humus 25%; A3: Black earth 50% + Humus 25% + Sand 25%. Factor B was two types of hormones: B1: Rootmost; B2: raizal 400. Seven treatments were had. They were made Test of Tukey to 5% to compare averages of treatments and factor To, Analysis of main effect stops factor B, Analysis of correlation and simple regression, Analysis of the relation benefit/ cost (B/C). The variables in study were: days to the brotación of the stake, percentage of prendimiento to the 90 days, I number of buds by stake to the 90 days, height of the bud, diameter of the bud of the stem, length of pecíolo of the leaf, number of leaves, length of the leaves, wide of the 150 leaf to 90 and and volume by root to the 150 days. The main results were: The substrate with the greater percentage of prendimiento of plántulas of yagual to the 90 days went A1: A1: Black earth 75%+ Sand 25% con 99.17%. The hormone with the greater percentage of prendimiento of stakes of yagual to the 90 days was Rootmost with a 92.56%. The treatment (Types of substrates by types of hormones), with the percentage of prendimiento upper of stakes of yagual to the 90 days was: T1: A1B1 (Earth negra75% + sand 25% + Rootmost) with 99.25%. The independent variables that contributed to a greater percentage of prendimiento of plántulas of yagual to the 90 days were: Height of the bud; Diameter of the bud of the stem; Number of leaves a; Length of the leaf; Wide of the leaf to the 90 and 150 days and volume by root to the 150 days. Economically the treatment with the net benefit upper was the T1: A1B1 (Black Earth (75%) + Sand (25%) + Rootmost (20cc/l of water), with $ 2, 14 of RB/C and a value of RI/C of $. 1,13. Finally this study contributed to determine that the asexual propagation of the yagual by means of stakes, is more efficient in time, with 90 days less in relation to the a sexual propagation, which makes the activity more competitive of the nurseryman