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EnglishFor more than eight years, INIFAP has carried out research work focused on inputs for the production of biofuels, including the mexican pinenut(Jatropha curcasL.). Throughout this time, genetic tests were established in four tropical environments in Mexico based on selected genotypes according to their agronomic and industrial attributes. The main selection criteria addressed were: grain yield, oil content, growth habit (bearing and branching pattern) and the presence of female flowers. The best genotypes of the trials were two varieties with the presence of 100% female flowers and a variety with a predominance of male flowers, but also with the presence of female and hermaphrodite flowers. One of these varieties with 100% female flowers was registered under the name ‘Dona Aurelia’with a breeder's title number 1541. This variety has proven to be stable in terms of morphological and production characteristics over theyears of evaluation and study. This variety can produce an average yield in humid tropics of 0.49 t ha-1in the first year of the crop, with a potential yield at the first year of 0.98 t ha-1, under dry tropic conditions. It reaches yields of 3 tons of dry grain per hectare at the fourth year of production. The average oil content in the seeds of the variety is 53.4%. The physicochemical characteristics of the oil are: 98.57 gI2/100 iodine index, 00.921 gcm-3density, 34.894 mm2s-1viscosity and 2.974 mgKOHg-1acid number and with a fatty acid composition of 35.36% fatty acids saturated and 64.64% unsaturated fatty acids, according to the American standard ASTM ‘Dona Aurelia’is considered of good quality as raw material for the production of biodiesel MultipleDurante mas de ocho anos, el INIFAP ha realizado trabajos de investigacion enfocados a los insumos para la produccion de biocombustibles entre ellos el pinon mexicano (Jatropha curcas L.). A lo largo de este tiempo, se establecieron ensayos geneticos en cuatro ambientes tropicales de Mexico basados en genotipos seleccionados de acuerdo con sus atributos agronomicos e industriales. Los principales criterios de seleccion abordados fueron: rendimiento de grano, contenido de aceite, habito de crecimiento y presencia de flores femeninas. Los mejores genotipos de los ensayos fueron dos variedades con presencia de 100% de flores femeninas y una variedad con predominio de flores masculinas, pero tambien con la presencia de flores femeninas y hermafroditas. Una de estas variedades con flores 100% femeninas se registro con la denominacion ‘Dona Aurelia’ con titulo de obtentor numero 1541. Esta variedad ha demostrado ser estable en cuanto a sus caracteristicas morfologicas y de produccion en los anos de evaluacion. Esta variedad tiene un rendimiento promedio en ambientes del tropico humedo de 0.49 t ha-1 en el primer ano del cultivo, con un rendimiento potencial al primer ano de 0.98 t ha-1, bajo condiciones de tropico seco. Alcanza rendimientos de 3 t de grano seco por hectarea al cuarto ano de produccion. El contenido promedio de aceite en las semillas de la variedad es de 53.4%. Las caracteristicas fisicoquimicas del aceite son: 98.57 gI2/100 de indice de yodo, 0.921 g cm-3 de densidad, 34.894 mm2 s-1 de viscosidad y 2.974 mg KOH g-1 de indice de acidez y composicion de acidos grasos de 35.36% de acidos grasos saturados y 64.64% de acidos grasos insaturados, de acuerdo con la norma americana ASTM ‘Dona Aurelia’ se considera de buena calidad como materia prima para obtener biodiesel.

Doña Aurelia: nuevo cultivar de piñón para el trópico de México