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Plantago (patagonica)

Andrea Kramer
Conservation Scientist
Chicago Botanic Garden - Research
1000 Lake Cook Road
Glencoe, Illinois 60022
847-835-6971
akramer@chicagobotanic.org
http://www.chicagobotanic.org
Family Scientific Name: Plantaginaceae
Scientific Name: Plantago patagonica
Species Code: PLPA
Ecotype: wild collected from Emery County, Utah
Propagation Goal: Seeds
Propagation Method: Seed
ProductType: Propagules (seeds, cutings, poles, etc.)
Pre-Planting Treatments: APPROACH: This project aimed to determine optimal germination conditions for species currently used in restoration in the Colorado Plateau, as well as other priority forb species that may be beneficial to include in future restoration efforts. For this study, seeds were plated on 1.5% agar in petri dishes (4 replicates of 25 seeds per treatment) and incubated in growth chambers at Chicago Botanic Garden using six temperature treatments intended to represent different seed sowing times and locations in the Colorado Plateau (treatments are shown as day/night temperatures respectively, using a 12h/12h light/dark cycle):

TREATMENTS:
1) early-spring (4 weeks at 52°F/34°F)
2) winter (12 weeks at 34°F) and early-spring (4 weeks at 52°F/34°F)
3) mid-spring (4 weeks at 59°F/41°F)
4) winter (12 weeks at 34°F) and mid-spring (4 weeks 59°F/41°F)
5) late-spring (4 weeks at 68°F/50°F)
6) winter (12 weeks at 34°F) and late-spring (4 weeks 68°F/50°F)
Establishment Phase: RESULTS: Almost all viable seeds from this Seeds of Success collection from Emery County, Utah germinated to high levels in all six treatments. The highest and most consistent germination was found in treatment 1 (early-spring conditions), while the lowest and least consistent germination was found in treatment 2 (winter followed by early-spring conditions: only 60% germination on average). This indicates that seeds are not dormant and may benefit from an early-spring sowing. Sowing in the fall may induce dormancy in some seeds. Additional research is needed to identify whether these results are representative of the entire species. The figure at http://tinyurl.com/CBGSeedGerminationPLPA shows the average percent germination and standard deviation of viable seeds for each treatment.

Citation:

Kramer, Andrea T; Foxx, Alicia. 2016. Propagation protocol for production of Propagules (seeds, cutings, poles, etc.) Plantago patagonica Seeds Chicago Botanic Garden - Research Glencoe, Illinois. In: Native Plant Network. URL: https://NativePlantNetwork.org (accessed 2024/07/23). US Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources.