Photoperiodic Responses of Dill, a Very Sensitive Long Day Plant

  title={Photoperiodic Responses of Dill, a Very Sensitive Long Day Plant},
  author={K. C. Hamner and A. W. Naylor},
  journal={Botanical Gazette},
  pages={853 - 861}
1. Approximately 2 per cent of the seedlings from the commercial dill seed employed flowered soon after germination if grown on 9-hour photoperiods, while the remainder continued in a rosette condition for 11 months when grown in the greenhouse at the same photoperiod. 2. Vegetative plants transferred from conditions of short to those of long photoperiod were induced to flower after exposure to as few as four long photoperiods. 3. If vegetative plants which have been maintained on short… Expand
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