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Title: Seed production and field establishment of hoary tansyaster (Machaeranthera canescens)
Author: Tilley, Derek J.;
Source: Native Plants Journal. 16(1): 61-66.
Publication Series: Scientific Journal (JRNL)
Description: The USDA NRCS Aberdeen Plant Materials Center (PMC) produces certified early generation seed of hoary tansyaster (Machaeranthera canescens (Pursh) A. Gray [Asteraceae]), a late summer and fall blooming forb native to the Intermountain West region. Hoary tansyaster is an excellent forb candidate for restoration efforts in arid to semiarid sites. It is relatively easy to manage in a seed production system, establishes quickly in a rangeland situation, and provides blooms in late summer during the establishment year. Propagation methodologies including establishment, weed control, harvest, and seed processing are herein discussed. We have grown seed production fields of hoary tansyaster in 2 different field systems, one using weed barrier fabric and the other in open drill-seeded fields. Seed can be collected by hand, combine, Flail-Vac, or vacuum-type harvester and can be processed with brush machine and air-screen type cleaning equipment. Seed yields at Aberdeen, Idaho, range between 2 and 8 kg pure live seed (PLS)/ha (2-7 lb/ac).
Keywords: forb, harvest, management, seed cleaning, rangeland, restoration, Asteraceae
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Tilley, Derek J. 2015. Seed production and field establishment of hoary tansyaster (Machaeranthera canescens). Native Plants Journal. 16(1): 61-66.
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