ISSN:
1432-2242
Keywords:
Pollen
;
Inbreeding
;
Maize
;
Vigor
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Summary The competitive ability of pollen from inbred plants in mixed pollinations in this study is not merely maintained but enhanced through successive generations of selfing. The data presented suggest two conclusions: 1) the possible existence of pollen-stylar interactions during successive selfings, which select for certain pollen genotypes, those best suited for rapid growth through “self” styles; and 2) the presence of sporophytic vigor in the heterotic F1 sporophyte, or its absence in the “depressed” F7 sporophyte, is not necessarily demonstrated in the gametophytic generation, perhaps because it can be overwhelmed by other factors, e.g. gametophytic response to selection.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00273767
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