Heterotic relationships among European maize inbreds

European flint maize (Zea mays L.)cannot be considered an uniform group of germplasm based on its origin and area of adaptation. However, maize breeders have not taken full advantage of the variability within the European flint germplasm. The objective of this work was to study the heterotic relatio...

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Published inEuphytica Vol. 126; no. 2; pp. 259 - 264
Main Authors REVILLA, P, MALVAR, R. A, CARTEA, M. E, SOENGAS, P, ORDAS, A
Format Journal Article
LanguageEnglish
Published Dordrecht Springer 01.01.2002
Springer Nature B.V
Subjects
Agronomy. Soil science and plant productions
Biological and medical sciences
Corn
Fundamental and applied biological sciences. Psychology
Genetics and breeding of economic plants
Heterosis. Floral biology applications: apomixy, male sterility, incompatibility, varia
Plant breeding: fundamental aspects and methodology
Plant reproduction
Europe
Spain
Agronomic character
Monocotyledones
Genetic variability
Zea mays
Cereal crop
Heterosis
Combining ability
Germplasm
Gramineae
Angiospermae
Genetic improvement
Spermatophyta
Inbred
Intraspecific comparison
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Summary:European flint maize (Zea mays L.)cannot be considered an uniform group of germplasm based on its origin and area of adaptation. However, maize breeders have not taken full advantage of the variability within the European flint germplasm. The objective of this work was to study the heterotic relationships among European maize inbreds from different origins. Nine European flint inbreds were crossed in a diallel that was evaluated in three environments in northwestern Spain. The variability within the European flint germplasm and the agronomic value of some inbreds could be utilized for maize breeding programs as an alternative to the systematic introduction of U.S. dent germplasm that is narrowing the germplasm base of breeding programs even in places where it is poorly adapted. Some European flint inbreds may also be valuable sources of earliness (F7 and EP42), resistance to root lodging (EA1070), and yield (EP42).These results suggest that, within the European flint germplasm, there could be some heterotic patterns, such as 'north-central Europe × southern Europe', which could provide an alternative to the heterotic pattern 'European flint × U.S. dent'.[PUBLICATION ABSTRACT]
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0014-2336
1573-5060
DOI:10.1023/A:1016390107871