Aplicación de índices de capacidad funcional para evaluar la capacidad climática para la producción de maíz ante el cambio climático por medio de las variables tiempos térmicos, radiación solar y precipitación.

Abstract

In the present work, the application of univariate functional process capability indices is proposed to evaluate the climatic capability in corn production at La Concordia. Three corn hybrids are studied, and the weather is considered as a process, which is assumed to be in control. These indexes are applied by two methods to relevant climatic variables for maize development such as: thermal times, photosynthetically active solar radiation, and precipitation, which are considered as characteristics to be controlled and are measured on a weekly basis. The specification limits are calculated according to the needs of the corn in relation to the variables.

Prior to this application, it was done a review of different FDA techniques, such as: adjustment of discrete data by smooth functions, functional depth measures and functional central p-region; in order to obtain the functions required by the indexes.

Finally, through this application, it could be proved that method A yields better results than method B. On the other hand, it was determined that there is no precipitation capacity for the production of corn hybrids. It was evidenced that the capacity of thermal times exists for the three corn hybrids. In the case of photosynthetically active radiation, it was observed that through the index Cp(prf), there is capacity for two corn hybrids of the three considered; nevertheless, when considering the index Cpk(prf), there is no capacity to supply the needs of this variable for the production of the corn hybrids considered.