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Título : Effects of selection for resistance to Sesamia nonagrioides on maize yield, performance and stability under infestation with Sesamia nonagrioides and Ostrinia nubilalis in Spain
Autor : Sandoya Miranda, Germán; Malvar Pintos, Rosa Ana; Álvarez Rodríguez, Ángel ; Revilla Temiño, Pedro; Butrón Gómez, Ana María
Palabras clave : GGE interaction
maize
Ostrinia nubilalis
Sesamia nonagrioides
stability
yield
Fecha de publicación : may-2010
Editor: John Wiley & Sons
Citación : Sandoya G, Malvar RA, Álvarez A, Revilla P, Butrón AM. Effects of selection for resistance to Sesamia nonagrioides on maize yield, performance and stability under infestation with Sesamia nonagrioides and Ostrinia nubilalis in Spain. Annals of Applied Biology 156 (3): 377-386 (2010)
Resumen: A maize synthetic population was improved for resistance to the Mediterranean corn borer (MCB, Sesamia nonagrioides) while maintaining yield. The objectives of this research were to investigate whether yield and yield stability of the maize synthetic population named EPS12 were affected by selection for MCB resistance; also to determine which genotypic and environmental covariates could explain the genotype (G), environment (E) and genotype × environment (GE) effects for yield under corn borer infestation. Plants from three cycles of selection and their testcrosses to three inbred testers (A639, B93 and EP42) were evaluated at two locations in 2 years, under MCB and European corn borer infestations. After selection EPS12 was a more stable genotype. Hybrids derived from crosses between B93 and inbreds obtained from the initial cycles of selection could be recommended for cultivation in northern Spain. The yield of crosses between cycles of selection and testers increased when there were fewer days with temperatures >25°C and higher mean maximum temperatures. Differences in yield among these genotypes were mostly explained by resistance to corn borer attack. In general, among EPS12-derived materials, genetic characteristics that contribute to increased grain yield were also responsible for increased abiotic stress tolerance.
Descripción : 31 Pag., 3 Tabl., 1 Fig. The definitive version is available at: http://www3.interscience.wiley.com
Versión del editor: http://dx.doi.org/10.1111/j.1744-7348.2010.00395.x
URI : http://hdl.handle.net/10261/24574
DOI: 10.1111/j.1744-7348.2010.00395.x
ISSN: 0003-4746
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