RT Journal Article SR Electronic T1 Optimum Storage and Germination Conditions for Seeds of Pickerelweed (Pontederia cordata L.) from Florida JF Native Plants Journal JO NATIVE PLANTS JOURNAL FD University of Wisconsin Press SP 4 OP 12 DO 10.2979/NPJ.2009.10.1.4 VO 10 IS 1 A1 Gettys, Lyn A A1 Dumroese, R Kasten YR 2009 UL http://npj.uwpress.org/content/10/1/4.abstract AB Clean seeds of pickerelweed (Pontederia cordata L. [Pontederiaceae]) germinated best (84 to 94%) under water, even after being stored dry up to 6 mo at about 25 °C (77 °F), but germination of clean seeds under water was reduced to 43% when seeds were stored at 4 °C (39 °F) for 6 mo. Underwater germination of seeds enclosed in fruits was less effective; germination of fresh fruits or fruits stored for 3 mo ranged from 70 to 90% and was reduced to 38 to 42% when seeds were stored for 6 mo. The least effective method was burial, which significantly reduced germination in seeds or fruits stored for 3 or 6 mo. Understanding seed cleaning and germination requirements will make it even easier to propagate this attractive native perennial freshwater shoreline species.