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Article
Effect of storage time, site and floral morph on seed germination of the threatened distylous primrose Primula cusickiana var. maguirei
Plant Science Biology (2013)
  • Eugene W. Schupp, Utah State University
  • Andrew P Rayburn
  • Jacob B Davidson
Abstract

Ex situ conservation of rare plant species requires an understanding of germination requirements. We report the first successful germination trials for Maguire primrose (Primula cusickiana var. maguirei[L.O. Williams] N.H. Holmgren & S. Kelso), a threatened perennial herb narrowly restricted to a 20-km canyon in northern Utah, USA. Seeds collected from different sites (upper or lower canyon populations) and flower morphs (pin or thrum) that had been stored for either 1 or 2 years were cold, moist stratified in darkness at 1–2°C for 270 days. Independent of treatment, time to first germination was approximately 75 days, time to 50% germination (T50) was approximately 165 days, and total germination was 55.8%...

Disciplines
Publication Date
April, 2013
Citation Information
Eugene W. Schupp, Andrew P Rayburn and Jacob B Davidson. "Effect of storage time, site and floral morph on seed germination of the threatened distylous primrose Primula cusickiana var. maguirei" Plant Science Biology Vol. 28 Iss. 2 (2013)
Available at: http://works.bepress.com/eugene_schupp/137/