USFS Region 2 Native seed germination test result library

The Reveg Edge Reports , Box 609, Redwood City, CA. 94064 - (650) 325-7333

on seed collected from the Rocky Mountains and Region 2 of the USFS.


METHOD: Cold, moist stratification (40ºF. five-days/week, 70ºF two days/week) on top of cooton + light. Germinated seedlings counted on the 28th, 33rd, 54th, 78th and 113rd day. Seeds were collected from the Pike's Peak National Forest in 1998.


Species...........Lot........Elev.....28d..33d..54d..78d..113d..hard seed



Agropyron scribneri..Elk Park......11,800'...10%...50%...70%...70%...70%.....0%
Artemisia frigida....P.P. Hwy...... 9,400'...60....65....65....65....65......0
Bistoria bistoroides.Devil's Play..12,920'...10....10....20....20....20.....50
Bromus ciliatus......Ski area......10,900'...90...100...100...100...100......0
Calamag. purpur......Halfway....... 9,960'...60....80....90....90....90......0
Calamag. purpur......Elk Park......11,800'...40....60....60....60....60......0
Elymus canadensis....Toll Gate..... 7,740'....0....20....60....60....60.....40
Elymus canadensis....--- .....8.960-9,040'....0.....0....10....30....80......0
Geum rossii..........Elk Park......11,800'....0....10....20....20....20......0
Geum rossii..........Devil's play..12,920'...20....70....70....70....70......0
Muhl. montana........ -- .......... 8,560'....0....20....30....30....30.....10
Muhl. montana........ -- .......... 9,280'....0....30....40....40....40.....10
Poa fenderiana.......Elk Park......11,800'...50....60....60....60....60......0
Trisetum spicatum....Ski area......10,800'...80...100...100...100...100......0
Trisetum spicatum....Devil's play..12,900'..100...100...100...100...100......0

NOTES: "Hard seed"=there were still dormant seed after 113 days of stratification, which means seed will probably germinate over a two-year period in the wild. There was a ecotypic/elevational difference in the Elymus canadensis populations in how fast they germinated.

HOW TO READ THE CHART: Using Bromus ciliatus as the example, after 28 days of cold moist stratification, 90% of the seed germinated; and by the 33rd day, 100% had germinated. There was no change after the 33rd day, and threr were no dormant or "hard seed" left at the end of the test.