Browsing by Author "Balarezo Calero, Elenita Del Rocío"

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    Evaluación agronómica de moral fino (Chlorophora tinctoria) con tres tipos de sustrato y tres dosis de ácido giberélico, en el cantón Echeandía provincia Bolívar
    (Universidad Estatal de Bolívar . Facultad de Ciencias Agropecuarias . Escuela de Ingeniería Agroforestal, 2009) Balarezo Calero, Elenita Del Rocío; Fierro Borja, Sonia del Carmen
    The moral fine (Chlorophora tinctoria), it is a specie of a great importance at world level from the social, cultural, economic and environmental point of view. The indiscriminate pruning and the inadequacy of sustained programs of forestation pun in risk the existence of this species and many others. One of the factors that determine the low productivity of this specie is the short viability that presents the seeds, the unfavorable environmental conditions, and the insufficient knowledge of the benefits, for what it is necessary to evaluate the sexual propagation of this specie in different bases and gibberellic acid dose in nursery stage. This investigation was carried out in the canton Echeandía to 6 km road to Guaranda to an altitude of 600 msnm osl, with a temperature average of 18o C and an annual precipitation of 2500 mm. The objectives established in this investigation were:  Determine the most excellent agronomic characteristics that present the plants in each one of the treatments.  Study the effect (answer) of the gibberellic acid on the sexual propagation of fine morals.  Determine the best type of basis to obtain the best germination percentage.  Carry out an economic analysis cost/benefit. A complete blocks design was used DBCA at random in factorial arrangement plus a sample 3x3+1 with there repetitions. The A factor corresponded to there types of bases: A1: black soil plus bark of rice, A2 black soil plus guabos soil plus bark of coffee. The factor B corresponds to three gibberellic acid dose: B1: 100 ppm, B2: 200 ppm and B3: 300 ppm of gibberellic acid, 9 treatments were obtained plus a sample with three repetitions with a total of 30 treatments. The chemical of the bases, variance analysis, test of Tukey to 5%, simple analysis of correlation and simple regression and economic analysis were made. The germination of the seed of this specie is from 80 to 100% provided you sow it on time and with an appropriate treatment. As for the control of plagues and illnesses was carried out with Lynx for the earth and the rest was controlled in a homemade way, putting in practice insecticides, fungicides and trap for insects adults were guided to the organic control, in a nursery tree is more efficient this methodology in the definitive place it become more tedious this type of controls. The results most release obtained in is investigation of agreement a the objectives were: Regarding the most excellent agronomic characteristics the treatment what presented the best results in the 70% of the variably was T6 A2B3: soil plus soil guabos a 300 ppm of gibberellic acid. Regarding to the effect of the application of the different doses of gibberellic acid has effect not significant in the 90 % of the variably in is investigation In relation the basis was present the best results in world the variably except in the variably days the brotation DB was the A2: black soil plus soil guabos. As for a the variably AP the plus results se obtained en T6: A2B3: black soil plus soil guabos whit a value of 65,54 cm to 90 days. Regarding to the economic analysis the treatment that presented the smallest cost in relation to the beneficiate was A2: black soil plus guabos soil with a benefice of $ 0,07 dollars