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Improvement of varieties of maize of Jalisco by limited backcrossing

By: Sahagun Castellanos, Luis | 16, Congreso de Fitogenetica. Texcoco, Mex. (Mexico). 6-11 Oct 1996.
Contributor(s): Carrera V, Jose A [coaut.] | Marquez Sanchez, F [coaut.].
Material type: materialTypeLabelBookAnalytics: Show analyticsPublisher: 1996ISBN: 968-839-214-6.Other title: Mejoramiento de maices criollos de Jalisco por retrocruza limitada.Subject(s): America | Breeding methods | Crossbreeding | Gramineae | Latin America | Mexico | North America | Plant genetics and breeding | ZeaDDC classification: 97-074904 In: Sahagun Castellanos, Jaime; Ramirez-Vallejo,-Porfirio; Castillo-Gonzalez,-Fernando (Comp.). [16, Plant Breeding Congress, Texcoco, Mexico State. 1996 (Proccedings)]. 16, Congreso de Fitogenetica, Texcoco, Estado de Mexico. 1996 (Memoria). Texcoco, Mexico (Mexico). Sociedad Mexicana de Fitogenetica, A.C.; Colegio de Postgraduados. 1996. p. 188Summary: There are regions in the state of Jalisco where no improved populations of maize are sown. This research, for the midlands, had the purpose of improving native varieties by the limited backcrossing method. The variety is crossed to an improved population and backcrossed once to the variety. The resulting three-fourth of populations came from selecting toward yield and low plant archetype. An evaluation in 1995 showed a yield increase of 10 % as an average, though this was variable when taking individual cases. With the average of eight commercial hybrids there was only 2 % superiority over the improved native varieties. Plant hight was reduced 26 cm as average, while ear height was reduced 11 cmCollection: AGRIS Collection
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Lic. Jose Juan Caballero Flores

 

AGRIS Collection 97-074904 (Browse shelf) Available
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2 Cuadros. Sumario (En) SOMEFI. Ap. Postal No. 21, Chapingo, Mexico, C.P. 56230. (Mexico)

There are regions in the state of Jalisco where no improved populations of maize are sown. This research, for the midlands, had the purpose of improving native varieties by the limited backcrossing method. The variety is crossed to an improved population and backcrossed once to the variety. The resulting three-fourth of populations came from selecting toward yield and low plant archetype. An evaluation in 1995 showed a yield increase of 10 % as an average, though this was variable when taking individual cases. With the average of eight commercial hybrids there was only 2 % superiority over the improved native varieties. Plant hight was reduced 26 cm as average, while ear height was reduced 11 cm

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