An Essay on Juvenility, Phase Change, and Heteroblasty in Seed Plants

@article{Jones1999AnEO,
  title={An Essay on Juvenility, Phase Change, and Heteroblasty in Seed Plants},
  author={Cynthia S. Jones},
  journal={International Journal of Plant Sciences},
  year={1999},
  volume={160},
  pages={S105 - S111}
}
  • Cynthia S. Jones
  • Published 1999
  • Biology, Medicine
  • International Journal of Plant Sciences
Phase change (the change from nonreproductive to reproductive status) and heteroblasty (ontogenetic changes in vegetative metamers) are two determinants of longitudinal asymmetry in plants. These concepts are critically important to understanding the regulation of plant development as well as morphological evolution and life‐history variation. Since Goebel, the two have been conflated. This article questions how phase change and heteroblasty are delimited and explores some of the problems that… Expand

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A review of the available literature shows that dissociation and addition/deletion do occur in association with changes in flowering phenology, and that response to selection for earlier or later flowering is potentially constrained. Expand
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