Vicia (americana)
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Hannah Demler Innovative Restoration Technician 258 Main St Suite 200 Lander, Wyoming 82520 hannah.demler@tnc.org |
| Family Scientific Name: | Fabaceae | ||
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| Family Common Name: | Pea Family | ||
| Scientific Name: | Vicia americana | ||
| Common Name: | American vetch | ||
| Species Code: | VIAM | ||
| Ecotype: | Fremont County, Wyoming | ||
| General Distribution: | Vicia americana is widespread across Canada and the United States excluding the south eastern region of the country. | ||
| Propagation Goal: | Plants | ||
| Propagation Method: | Seed | ||
| Propagule Collection: |
Fruit is a legume pod. V. americana seed is dark brown to forest green in color. Seed is collected when the pods dry out but before they begin to split. Plants do not hold the seed after pods split. Seeds mature uniformly on individual plants throughout mid-summer. Seed was stored in cloth bags at room temperature until cleaned and then vacuum sealed and placed in a freezer for storage. Seeds/lb for this ecotype was ~22,200 |
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| Propagule Processing: | Seeds have a hard seed coat and exhibit physical dormancy (PY) | ||
| Pre-Planting Treatments: |
Seeds need to be scarified prior to germination. In an imbibition trial seeds were weighed throughout imbibition on moistened filter paper and un-scarified seeds had an average percent mass increase due to water uptake of only 2.7 % percent. Scarified seeds demonstrated an average percent mass increase of 81.1 %, indicating that the scarification treatment sufficiently abraded the seed coat and allowed for seed imbibition. Seeds were scarified with coarse grit sandpaper for 60-90 seconds until seed coat abrasion and chipping was observed under a microscope. A germination trial was also conducted on scarified seeds to determine optimum germination temperature. Growth chambers were set to three different diurnal temperature regimes, corresponding to the average temperatures in Fremont county, WY in May, June and July (4/19° C, 9/25° C, or 12/30° C respectively). The highest average germination was obtained after 28 days under the 4/19° C temperature regime, corresponding to average temperatures in May. |
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Citation:
2023. Propagation protocol for production of Vicia americana Plants Lander, Wyoming. In: Native Plant Network. URL: https://NativePlantNetwork.org (accessed 2025/04/15). US Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources.
