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The Forest Service National Center for Reforestation, Nurseries, and Genetic Resources (RNGR) is a leading source of technical information for nurseries and land managers regarding production and planting of trees and other native plants for reforestation, restoration, and conservation.

 
NPN Protocol Details Image

Downingia (yina)

Amy Bartow
Seed and Plant Production Manager
USDA NRCS - Corvallis Plant Materials Center
3415 NE Granger Ave
Corvallis, Oregon 97330
(541) 757-4812 ext 103
(541) 757-4733 (fax)
amy.bartow@or.usda.gov
http://plant-materials.nrcs.usda.gov/orpmc
Family Scientific Name: Campanulaceae
Family Common Name: Bellflower Family
Scientific Name: Downingia yina Applegate
Common Name: Cascade calicoflower
Species Code: DOYI
Ecotype: Seeds were collected from Lane Co., Oregon near Eugene.
Propagation Goal: seeds
Propagation Method: seed
ProductType: Propagules (seeds, cuttings, poles, etc.)
Time To Grow: 0
Target Specifications: Grow plugs to be transplanted into a field covered with weed fabric for seed increase.
Propagule Collection: Pods were allowed to split on the weed fabric and drop seed. Most pods did not shatter upon ripening. All plants were cut and put through a large brush machine to thresh them. The weed fabric was vacuumed using small battery-powered hand vacuums to collect seed that had shattered.
Propagule Processing: Seeds were cleaned using a small air screen machine.
Growing Area Preparation/
Annual Practices for Perennial Crops:		 Seeds were sown into cone-tainers filled with Sunshine #1 (a soil-less, peat-based media) amended with micro-nutrients (Micromax) and a slow-release fertilizer (Osmocote 14-14-14). Flats of cone-tainers were placed in an unheated greenhouse.Seeds will germinate in warm or cold temperatures.
Other Comments: Seeds are sown in December in a minimally heated greenhouse (about 50 degrees). Plugs are ready to be transplanted outside in mid march.

Citation:

Bartow, Amy. 2007. Propagation protocol for production of Propagules (seeds, cuttings, poles, etc.) Downingia yina Applegate seeds USDA NRCS - Corvallis Plant Materials Center Corvallis, Oregon. In: Native Plant Network. URL: https://NativePlantNetwork.org (accessed 2024/07/02). US Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources.