Atriplex (canescens)
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Jean Graham Nursery Manager USDI NPS - Joshua Tree National Park Native Plant Nursery 74485 National Park Drive Twentynine Palms, California 92277 760-367-5565 http://www.ggnpa.org |
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| Family Scientific Name: | Chenopodiaceae | ||
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| Family Common Name: | Goose foot Family | ||
| Scientific Name: | Atriplex canescens (Pursh) Nutt. | ||
| Common Name: | Four wing Saltbush | ||
| Species Code: | ATRCAN | ||
| Ecotype: | Joshua Tree NationalPark, California | ||
| General Distribution: | Atriplex canescens is found throughout the western United States in deserts and semi deserts from southern California north to eastern Washington and east to the Great Plains states. | ||
| Propagation Goal: | plants | ||
| Propagation Method: | seed | ||
| ProductType: | Container (plug) | ||
| Stock Type: | 2 Gallon PVC Pipe containers | ||
| Time To Grow: | 6 Months | ||
| Target Specifications: | Height: N/A<br> Caliper: N/A<br> Root System: Firm Root Plug in container. | ||
| Propagule Collection: | Seeds are hand collected late summer through fall when seeds have matured and wings have turned papery. | ||
| Propagule Processing: | Seeds allowed to dry for 4 to 6 weeks in paper bags in a warm, dry room. After seeds have been cleaned,they are stored under refrigeration in air tight containers at 7C. | ||
| Pre-Planting Treatments: |
Seeds are leached/soaked in water for up to 24 hours to remove any inhibitors and to allow full imbibition of seeds prior sowing. Seeds are directly sown into open flats using a growing medium of 2 parts sand, 1 part mulch and 2 parts perlite (v:v:v). |
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| Growing Area Preparation/ Annual Practices for Perennial Crops: |
The Joshua Tree Native Plant Nursery is located in the Mojave Desert of southern California and has an average of 250 frost free days per year and annual rainfall of 5 to 10 cm (2 to 4 in.) The facility is comprised of two greenhouses, shade structures, mist propagation beds and an outdoor growing compound. All propagation environments are utilized at different stages of seedling growth to provide for the variance in temperature and shading requirements during the growing season. |
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| Establishment Phase: | Seedlings are germinated on flats in a germination chamber or under mist where they remain until well established, approximately 2-3 weeks. They are transplanted into newspaper cylinders wrapped with polyvinyl foodwrap. The newspaper container is 29 cm (11.5 in) tall and 7.5 cm (3 in) in diameter. These containers are filled with a growing medium of 2:1:1 (v:v:v) sand, mulch, and perlite. | ||
| Length of Establishment Phase: | 4 weeks | ||
| Active Growth Phase: | Seedlings are ready for transplanting into larger containers at 8 to 12 weeks. The entire pot minus the plastic wrap is transplanted into the PVC containers using the same medium described for the newpaper containers. Osmocote time release fertilizer (9 mo release rate) (13N:13P205:13K20) is incorporated into the medium at the approximate rate of 22 g per 6l(2 gal). PVC containers are 37.5 cm tall (15 in) and are 15 cm (6 in) in diameter. Following transplanting, they are moved to the open growing compound that is covered with a 55% shadecloth during the summer months. The containers are irrigated by an automated drip system; the duration varies according to season. | ||
| Length of Active Growth Phase: | 4 months | ||
| Hardening Phase: | Irrigation frequency and duration is gradually reduced for 4 to 8 weeks prior to out-planting. The shadecloth is removed from the open growing compound in late fall when daytime temperatures begin to cool. Nursery stock is top pruned at this stage. | ||
| Length of Hardening Phase: | 4 weeks | ||
| Harvesting, Storage and Shipping: | Containerized seedlings are over wintered directly in the open growing compound. | ||
| Length of Storage: | variable, depends on out planting date | ||
Citation:
Graham, Jean. 2004. Propagation protocol for production of Container (plug) Atriplex canescens (Pursh) Nutt. plants 2 Gallon PVC Pipe containers; USDI NPS - Joshua Tree National Park Native Plant Nursery Twentynine Palms, California. In: Native Plant Network. URL: https://NativePlantNetwork.org (accessed 2024/05/19). US Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources.
