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Título

Corn Borer (Lepidoptera: Noctuidae and Crambidae) Resistance of Main Races of Maize from North America

Autor Revilla Temiño, Pedro; Butrón Gómez, Ana María; Ordás López, Bernardo; Soengas Fernández, María del Pilar; Malvar Pintos, Rosa Ana
Palabras clave Zea mays
Sesamia nonagrioides
Ostrinia nubilalis
Fecha de publicación 2007
EditorEntomological Society of America
Citación Journal of Economic Entomology 100(1):209–214 (2007)
ResumenResistance to corn borers, Ostrinia nubilalis (Hübner) (Lepidoptera: Crambidae) and Sesamia nonagrioides (Lefebvre) (Lepidoptera: Noctuidae) in maize, Zea mays L., populations is partial, and more resistant populations are needed. The objective of this research was to compare resistance to corn borers of the main maize races from North America. Twenty open-pollinated maize populations belonging to the races Southern Dent, Corn Belt Dent, and Northern Flint, and three check populations, were evaluated under artificial infestation with S. nonagrioides and O. nubilalis. None of the populations had complete resistance. Northern Flint had the lowest yield under corn borer infestation, whereas Southern Dent had the highest yield but also the largest damage. Corn Belt Dent had a shorter growing cycle and similar yield of infected plants than Southern Dent. The checks had intermediate yield and resistance and were not significantly different from Corn Belt Dent for any trait. The Southern Dent populations Tennessee Red Cob and White Dent (PI221885 and PI311232) could be used as sources of tolerance to corn borers, although they are not expected to provide great gains compared with the levels of tolerance already present in some Corn Belt Dent and European Flint populations and would require adaptation to short growing cycle. The Corn Belt Dent synthetic BS17 had the highest yield and general agronomic performance under corn borer infestation, along with Rustler and Silver King, and the European Flint composite EPS13.
Versión del editorhttp://dx.doi.org/10.1603/0022-0493(2007)100[209:CBLNAC]2.0.CO;2
URI http://hdl.handle.net/10261/9653
DOI10.1603/0022-0493(2007)100[209:CBLNAC]2.0.CO;2
ISSN0022-0493
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