Seed size variation and predation of seeds produced by wild and crop-wild sunflowers.

@article{Alexander2001SeedSV,
  title={Seed size variation and predation of seeds produced by wild and crop-wild sunflowers.},
  author={H. M. Alexander and C. L. Cummings and L. Kahn and A. Snow},
  journal={American journal of botany},
  year={2001},
  volume={88 4},
  pages={
          623-7
        }
}
The movement of pollen between crop and wild sunflowers (both Helianthus annuus) has led to concerns about the possible introduction of crop transgenes into wild populations. The persistence of crop traits in wild populations will depend in part on the relative fitness of crop-wild hybrid vs. wild plants. Using seeds from two large experimental field plots, we found that seeds produced by crop-wild plants were twice the size of wild seeds and differed in coloration. Head diameter, date of… Expand
Increased germination of diverse crop-wild hybrid sunflower seeds.
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