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Flowering and Seed Set

  • Miller B. McDonald
  • Lawrence O. Copeland

Abstract

Plant reproduction is central to survival of the species. This process is accomplished asexually and/or sexually. Asexual reproduction often is the result of modification of vegetative structures such as stems or roots that possess sufficient fleshy tissue for energy storage. Such structures include rhizomes (bluegrass), corms (gladiolas), bulbs (onion), and tubers (potato). Another form of asexual reproduction is apomixis. Two types of apomixis result in the formation of seedlike structures: vivipary and agamospermy. Vivipary is often expressed by the conversion of the vegetative spikelet or leaf into a somatic structure with reproductive capability. Agamospermy occurs when nucellar (unfertilized) tissue in the embryo sac develops into a diploid egg cell that further differentiates into a “seed.” This form of asexual reproduction requires pollination even though fertilization does not occur. Most plants that reproduce primarily through apomixis also have a limited amount of sexual reproduction. This form of asexual reproduction is generally confined to certain grasses such as Kentucky bluegrass.

Keywords

Seed Production Male Sterility Cytoplasmic Male Sterility Female Flower Asexual Reproduction 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Bibliography

  1. Barden, J. A., R. G. Halfacre and D. J. Parrish. 1987. Plant Science. McGraw-Hill, New York.Google Scholar
  2. Fehr, W. R. 1987. Principles of Cultivar Development, vol. I. Theory and Technique. Macmillan, New York.Google Scholar
  3. Frankel, R. and E. Galun. 1977. Pollination Mechanism, Reproduction and Plant Breeding. Springer-Verlag, New York.CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media Dordrecht 1997

Authors and Affiliations

  • Miller B. McDonald
    • 1
  • Lawrence O. Copeland
    • 2
  1. 1.Ohio State UniversityUSA
  2. 2.Michigan State UniversityUSA

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