Generación de tecnologías para incrementar la productividad del algodón Gossypium hirsutum L. en Manabí, Ecuador
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E. E. Portoviejo
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p. 85-95
Abstract
El objetivo de esta investigación fue generar tecnología para la producción de algodón. En ese sentido se evaluó la respuesta de dos variedades (DP-Acala 90 y Coker) a dos densidades de siembra (62.500 y 50.000 plantas ha-1) y dos programas de manejo agronómico (tecnología INIAP y tecnología clásica). El ensayo se realizó en la época seca de 2018, en la Estación Portoviejo del INIAP (01°09´51”S,
80°23´24”W, 60 msnm y 26,4 °C, 81% de HR, 851,57 mm). Se formaron ocho tratamientos, dispuestos en un Diseño de Bloques Completos al Azar con Arreglo de Parcelas Subdivididas, con cuatro repeticiones. Se evaluaron variables agronómicas, fitosanitarias y productivas. La densidad de 50.000 plantas ha-1 tuvo menor incidencia de insectos-plaga, como trozadores y trips, además de una mejor relación peso fibra/semilla. La variedad DP Acala-90, se comportó significativamente mejor frente a la incidencia de trips y mosca blanca, además, presentó una mejor relación porcentual de peso fibra/semilla. El uso de la tecnología INIAP, tuvo significativamente más rendimiento que la tecnología clásica.
The goal of this experiment was to evaluate the response of two varieties of cotton (DP-Acala 90 and Coker) to two planting densi- ties (62.500 and 50.000 ha-1 plants) and two agronomic management programs (INIAP technology and classic technology). The trial was conducted in the dry season of 2018, at INIAP's Portoviejo Station, (01°09'51 "S, 80°23'24 "W, 60 msnm and 26.4 °C, 81% RH, 851.57 mm). Eight treatments were laid out on a randomized complete block design with split-split plot arrangement and four repetitions. Agronomic, phytosanitary and production variables were evaluated. The density of 50,000 plants ha-1 had the lowest incidence of insects, such as cutworms and thrips, in addition to a better relation of fiber weight/seed. The variety DP Acala-90 behaved significantly better against the incidence of thrips and whiteflies and also showed a better relation of fiber weight/seed. The use of INIAP´s technology, had significantly more yield than the classic technology.
The goal of this experiment was to evaluate the response of two varieties of cotton (DP-Acala 90 and Coker) to two planting densi- ties (62.500 and 50.000 ha-1 plants) and two agronomic management programs (INIAP technology and classic technology). The trial was conducted in the dry season of 2018, at INIAP's Portoviejo Station, (01°09'51 "S, 80°23'24 "W, 60 msnm and 26.4 °C, 81% RH, 851.57 mm). Eight treatments were laid out on a randomized complete block design with split-split plot arrangement and four repetitions. Agronomic, phytosanitary and production variables were evaluated. The density of 50,000 plants ha-1 had the lowest incidence of insects, such as cutworms and thrips, in addition to a better relation of fiber weight/seed. The variety DP Acala-90 behaved significantly better against the incidence of thrips and whiteflies and also showed a better relation of fiber weight/seed. The use of INIAP´s technology, had significantly more yield than the classic technology.