Heliconia wagneriana Petersen is a Short-day Plant

in HortScience
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  • 1 Department of Horticulture, University of Hawaii, Honolulu, HI 96822-2279
  • | 2 College of Agriculture, University of Hawaii, Hilo, HI 96720-4091

Seasonal flowering behavior of Heliconia wagneriana Petersen was found to be caused by short daylengths (SD) using artificial short days (8 to 9 hours) and long days as daylength extension or night break lighting with incandescent lamps. The natural time for flower initiation was estimated to be mid- to late October (11 hours 40 minutes to 11 hours 20 minutes) in Hawaii, and 120 to 150 days were required from the onset of inductive SD to inflorescence emergence. The results may be used to manipulate flower availability for flower markets.

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