Híbridos dobles de maíz de baja depresión endogámica en F2.

Humberto de León; Arcenio Jaramillo; Gaspar Martínez; Sergio Rodríguez

doi:10.15517/am.v9i1.24623

Double hybrids of low in breeding depression corn in F2.

Authors

Humberto de León UAAAN-Universidad Autónoma Agraria Antonio Narro, Saltillo, Coahuila, México.
Arcenio Jaramillo UAAAN-Universidad Autónoma Agraria Antonio Narro, Saltillo, Coahuila, México.
Gaspar Martínez UAAAN-Universidad Autónoma Agraria Antonio Narro, Saltillo, Coahuila, México.
Sergio Rodríguez UAAAN-Universidad Autónoma Agraria Antonio Narro, Saltillo, Coahuila, México.

DOI:

https://doi.org/10.15517/am.v9i1.24623

Abstract

The first and second generations (F1 and F2) of 33 double hybrids of com were studied in order to evaluate grain yield decrease caused by generational advance, and to detect hybrids with a low inbreeding depression. Effects of in breeding depression were also evaluated according to flowering days (FD), plant height (PH), ear height (EH), root lodging (RL), and stem height (SH), bad coverage (BC), and roUen ears (RE). Doub1e hybrids with a high yield were obtained in F1, and without in breeding in F2 at arate of six to nine percent, depending on the evaluation environment, indicating insignificant in breeding effects.

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References

BUSBICE, T. H. 1970. Predicting yield of synthetic varietieso Crop Sci. 10: 265-269.

FASOULAS, A. 1986. The aplication of genetics to plant breeding. Pub. No 8. Dept. Gen. Plant Breeding. Aristotelian Univ. ofThessaloniki, Greece. pp. 23-25.

HERNÁNDEZ, A, J.; REYES C., P. 1986. Estudio de las generaciones Fl y F2 de cruzas intervarietales de maíz con genes de enanismo. Memorias del XI Congreso Nacional de Fitogenética. p 230.

STEEL, R G. D.; TORRIE, 1. H. 1960. PrincipIes and Procedures of Statistics. McGraw-HilI Co., New York, p. 158.

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Published

2016-05-31

How to Cite

de León, H., Jaramillo, A., Martínez, G., & Rodríguez, S. (2016). Double hybrids of low in breeding depression corn in F2. Agronomía Mesoamericana, 9(1), 38–41. https://doi.org/10.15517/am.v9i1.24623

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Issue

1998: Agronomía Mesoamericana: Vol. 9, Issue 1 (January-June)

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Articles

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