Racquets, Hoppers, and Felt Boards--Low-Tech Devices for Processing Seeds

Jensen, Scott

doi:10.1353/npj.2004.0013

Cited by 4 publications

(3 citation statements)

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“…Clipping seed heads into a bag or netting, or whacking seed heads with a racquet into a large collection container, are two low-tech means for collecting seeds ( Figure 5C). A modified portable vacuum can also be used, especially for collecting smaller seeds (Lippitt et al, 1994;Jensen, 2004b;ENSCONET, 2009). In some cases, manual harvesting of SAV can yield large numbers of seed (e.g., of upper third of photosynthetic reproductive stems of Potamogeton perfoliatus L. and Ruppia maritima L.; Ailstock et al, 2010), but more creative solutions are often required such as using a barge-mounted commercial harvester or smaller bowmounted, mechanized harvester (e.g., with Zostera marina L.; Marion and Orth, 2010).…”

Section: Seed Collection Approachesmentioning

confidence: 99%

Need to Seed? Ecological, Genetic, and Evolutionary Keys to Seed-Based Wetland Restoration

Kettenring

Tarsa

2020

Front. Environ. Sci.

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As we approach the Decade of Ecosystem Restoration (2021-2030), there is renewed focus on improving wetland restoration practices to reestablish the habitat and climate mitigation functions and services that wetlands provide. A first step in restoring these functions and services is to reestablish the native vegetation structure and composition through strategic seed-based approaches. These approaches should be driven by ecological, genetic, and evolutionary principles, along with consideration for economics, logistics, and other social constraints. Effective seed-based approaches must consider the chosen species, seed sourcing, dormancy break and germination requirements, seed enhancement technologies, potential invaders, seeding densities, and long-term monitoring. Choice of species should reflect historical plant communities and future environmental conditions, species that support functional goals including invasion resistance, and seed availability constraints. Furthermore, seeds should be sourced to ensure ample genetic diversity to support multifunctionality and evolutionary capacity while also considering the broad natural dispersal of many wetland species. The decision to collect wild seeds or purchase seeds will also impact species choice and genetic diversity, which can have cascading effects for functional goals. To ensure seedling establishment, seed dormancy should be addressed through dormancy breaking treatments and the potentially narrow germination requirements of some species will require targeted sowing timing and location to align with safe sites. Other seed enhancements such as priming and coatings are poorly developed for wetland restoration and their potential for improving establishment is unknown. Because wetlands are highly invasion prone, potential invaders and their legacies should be addressed. Seeding densities should strike a balance between outcompeting invaders and preserving valuable seed resources. Invader control and long-term monitoring is key to improving revegetation and restoration. Here, we review scientific advances to improve revegetation outcomes, and provide methods and recommendations to help achieve the desired goals. Gaps in knowledge about seed-based wetland restoration currently exist, however, and untested practices will certainly increase risks in future efforts. These efforts can be used to better understand the ecological, genetic, and evolutionary processes related to wetland seeds, which will bring us one step closer to seed-based restoration of functions and services needed for human and ecological communities.

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Section: Seed Collection Approachesmentioning

confidence: 99%

Need to Seed? Ecological, Genetic, and Evolutionary Keys to Seed-Based Wetland Restoration

Kettenring

Tarsa

2020

Front. Environ. Sci.

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“…Clair et al 2013) for numerous species native to sagebrush ecosystems. Specialized equipment and cultural practices are being developed by FS scientists and collaborators to improve seed yields for species grown in agronomic settings (Shock et al 2014(Shock et al , 2015 Novel equipment for collecting seeds has been described (Jensen 2004) and guidelines are available for proper collection and certification of seed from natural stands (Adair et al 2006;Currans et al 1997;Young et al 1995). FS researchers and their collaborators continue to develop cultural practices needed to increase the availability and quality of seed needed for sagebrush ecosystem restoration (Shaw et al 2012).…”

Section: 43-native Plant Development-seed and Seedling Biology Andmentioning

confidence: 99%

Conservation and restoration of sagebrush ecosystems and sage-grouse: An assessment of USDA Forest Service Science

Finch¹,

Boyce²,

Chambers³

et al. 2016

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“…Big sagebrush seed must be collected in late fall or early winter. Collections are typically done by hand using clubs or tennis rackets to dislodge achenes before gathering them into sacks or hoppers (see Jensen 2004). Viability rates decrease sharply after the first year so seeds are sown the first spring following collection and any unused seed remaining after the second spring is discarded.…”

Section: S E E D a C Q U I S I T I O Nmentioning

confidence: 99%