ARTÍCULO
TITULO

Efficiency of selection in pepper lines (Capsicum annuum), from four sub-populations, in characters of productive interest. Cien. Inv. Agr. 35(1):37-49.

Yaritza Rodríguez    
Tomás Depestre    
Olimpia Gómez    

Resumen

In Cuba, there is a necessity for pepper lines (Capsicum annum L.) that are well adapted and have multiple resistances to the main viral diseases of big fruits. These cultivars should be used as progenitors in obtaining F1 hybrids with higher quality phenotypes that are more commercially competitive. Therefore, the objective of this work was to characterize the effi ciency of the selection in pepper lines derived from four sub-populations. Genetic and statistical parameters were studied to optimize selection in a group of 27 lines, cultivated in a Red Ferralitic soil. Viral resistance was found for Cucumber mosaic virus (CMV) (subpopulation LIRAC), Tobacco etch virus(TEV) (sub-population LIRAE), Potato virus Y (PVY) (sub-population LIRAP) and Tobacco mosaic virus (TMV) (sub-population LIRAV). The virus identifi cation was performed previously in the INRA-Monfavet, France. These results suggest that existent genetic resources of C. annuum in Cuba permit the development of multiple lines of resistance, adapted to the local climatic conditions and commercially acceptable productive values in pepper. En Cuba, existe necesidad de contar con líneas de pimiento (Capsicum annuum L.) con resistencia múltiple a las principales enfermedades virales, de frutos grandes y de buena adaptación. Estos cultivares deberían ser utilizados como progenitores en la obtención de híbridos F1 con mejores cualidades fenotípicas y comercialmente más competitivos. Por lo tanto, este trabajo tuvo por objetivo caracterizar productivamente líneas de pimiento proveniente de cuatro sub-poblaciones para establecer la efi ciencia de la selección. Se estudiaron los parámetros genéticos y estadísticos que optimizan la selección para caracterizar un grupo de 27 líneas en conjunto, cultivadas en un suelo Ferralítico Rojo. Se determinó resistencia los virus del mosaico del pepino (CMV) (subpoblación LIRAC), virus del grabado del tabaco (TEV) (sub-población LIRAE), virus Y de la papa (PVY) (Sub-población LIRAP) y virus del mosaico del tabaco (TMV) (Sub-población LIRAV). Estos virus fueron previamente determinados en el INRA-Monfavet, Francia. De acuerdo con los resultados obtenidos, es posible concluir que la estrategia basada en el manejo de fuentes de resistencia a virosis, existentes en los recursos genéticos de C. annuum disponibles en Cuba es válida para lograr resistencia múltiple, adaptación climática y valores productivos aceptables en pimiento.

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