An Assessment of Native Seed Needs and the Capacity for Their Supply Final Report (2023) / Chapter Skim
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8 Knowledge Gaps and Research Needs to Support the Native Seed Supply
8 Knowledge Gaps and Research Needs to Support the Native Seed Supply
Pages 99-110
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From page 99... ...
Other issues call for the accelerated development and wider dissemination of improved technical knowledge relevant to specific regions and/or species, including how to improve the genetic diversity, viability, quality testing, long-term storage, and deployment of seeds and other native plant materials for restoration. While not a research topic per se, the utility of seed certification is highlighted (Box 8-2)
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From page 100... ...
Despite the existence of considerable case-by-case research on local adaptation, there is still a great need to improve the overall scientific basis for seed zone definitions, with the goal of creating widely accepted standards for seed zone delineation which could significantly improve the functioning of the native seed market. SEED SOURCING AND CLIMATE CHANGE Rapid climate change now poses a fundamental challenge to traditional approaches to seed sourcing in restoration.
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From page 101... ...
. SPECIES DIVERSITY AND COMPOSITION Just as seed selection will be informed by studies on the role of genetic diversity and provenance within a species and population, there are many research questions to be addressed about the appropriate selection of species and species mixes for restoration projects.
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From page 102... ...
. The Fort Belknap Native Seed and Restoration Program and the Grand Ronde Tribal Native Plant Materials Program described in Chapter 5 show how native knowledge and western science can successfully engage.
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From page 103... ...
So, the first step is to measure the total land area planted with native species and the annual demand for native seed and plant materials. As this report has shown, the uses of native seeds and plant materials vary widely.
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From page 104... ...
SEED BIOLOGY AND SEED ANALYSIS Accurate information about seed quality is essential for setting seed prices and calculating seeding rates. Seed tests that do not represent accurate seed quality affect costs and project success for users and income for producers.
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From page 105... ...
Seed quality data are essential for setting seed prices and calculating seeding rates. Because both initial germination and total viability (includes dormant seed)
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From page 106... ...
Some private and public organizations pro cure seed from trusted collectors and growers without such verification, but for most native plant materials offered for sale, independent, third-party verification can be provided by state seed certification agencies (SCAs)
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From page 107... ...
Conclusion 8-2: Important gaps in basic research include developing and testing strategies for seed sourcing that take rapid climate change into account; integration of traditional ecological knowledge into ecological restoration; and the role of species diversity, traits that contribute to survival, and the economics of the native seed industry. Conclusion 8-3: Critical needs for the development and dissemination of improved technical knowledge include identifying basic growing requirements for more species, maintaining genetic integrity during cultivation, improved approaches to seed analysis, and greater use of seed certification.
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From page 108... ...
2017. Evolution of plant materials for ecological restoration: Insights from the applied and basic literature.
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From page 109... ...
2014. The challenge of using native plant materials for sagebrush steppe restoration in the Great Basin, USA (Chapter 4.2)
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