Selección de híbridos de maíz con alto potencial productivo para el Chaco Boliviano
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INIAF
Resumen
El Programa Maíz del INIAF, ha orientado esta investigación con el objetivo de identificar híbridos avanzados introducidos del germoplasma del CIMMYT. Durante la gestión del 2011, se ha introducido 18 híbridos con el código 11TTWCLY, de los cuales dos híbridos simples fueron promisorios y posteriormente el 2012 y 2013, se evaluó la adaptación de los mismos frente a otros trece híbridos también introducidos del CIMMYT, demostrando su estabilidad agronómica y aceptación por parte de los productores del Chaco hacia los híbridos INIAF H1 e INIAF HQ2 los cuales actualmente cuentan con el debido certificado de registro de variedades. El estudio de adaptación muestra rendimientos superiores en las condiciones del Chaco de Tarija y Chuquisaca y con menor productividad en las condiciones del Trópico de Santa Cruz. De acuerdo a los análisis de regresión, el cambio en las condiciones ambientales afecta por igual al comportamiento de los híbridos, no se evidenció la interacción genotipo × ambiente. Actualmente la semilla genética de estos híbridos es producida por el INIAF y la semilla certificada a través de alianzas con productores asociados, las sub gobernaciones, la Empresa Nacional de Semillas, entre otras, cubriendo con la producción de mayor volumen de semilla híbrida a precios más accesibles para los productores.
The INIAF Maize Program has guided this research with the objective of identifying advanced hybrids introduced from germplasm of CIMMYT. During the 2011 season, 18 hybrids with the code 11TTWCLY were introduced, from this set two simple hybrids were promising and later in 2012 and 2013, the adaptation of the same was evaluatede against other 13 hybrids also introduced from CIMMYT, showing their agronomical stability and acceptance by Chaco region growers of the hybrids INIAF H1 and INIAF HQ2, these have its own certificate of registration. The adaptation performance shows higher yields in the conditions of the Chaco in Tarija and Chuquisaca and lower productivity in the tropical conditions of Santa Cruz. According to the regression analysis, the change in environmental conditions affects the response of the hybrids equally, we found any genotype × environment interaction. Currently, the genetic seed is produced by INIAF and certified seed through alliances with associated producers, sub-governors, the National Seed Company, among others, fulfilling the production of greater volume of hybrid seed at prices more accessible to producers
The INIAF Maize Program has guided this research with the objective of identifying advanced hybrids introduced from germplasm of CIMMYT. During the 2011 season, 18 hybrids with the code 11TTWCLY were introduced, from this set two simple hybrids were promising and later in 2012 and 2013, the adaptation of the same was evaluatede against other 13 hybrids also introduced from CIMMYT, showing their agronomical stability and acceptance by Chaco region growers of the hybrids INIAF H1 and INIAF HQ2, these have its own certificate of registration. The adaptation performance shows higher yields in the conditions of the Chaco in Tarija and Chuquisaca and lower productivity in the tropical conditions of Santa Cruz. According to the regression analysis, the change in environmental conditions affects the response of the hybrids equally, we found any genotype × environment interaction. Currently, the genetic seed is produced by INIAF and certified seed through alliances with associated producers, sub-governors, the National Seed Company, among others, fulfilling the production of greater volume of hybrid seed at prices more accessible to producers
Descripción
2017 4(9): 7-14 p.


