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United States Department of Agriculture

Agricultural Research Service

Research Project: SEED INCREASE AND PHYTOSANITARY ASSESSMENT OF QUARANTINED AND TROPICALLY-ADAPTED GENETIC RESOURCES Project Number: 6635-21000-046-00
Project Type: Appropriated

Start Date: May 09, 2008
End Date: Mar 19, 2013

Objective:
Objective 1: Increase seed and conduct phytosanitary assessments for more than 1,000 NPGS Sorghum and Zea accessions which are subject to quarantine restrictions, so as to make additional certified, pathogen-tested seeds available to users. Objective 2: Regenerate about 8,000 NPGS accessions with few seeds, low viabilities, and adaptations to equatorial latitudes and long-seasons, emphasizing Sorghum, Zea, Vigna, Cucurbita, Leucaena, and Psophocarpus. Record key agronomic traits such as host-plant resistance to biotic and abiotic stresses.

Approach:
Select and treat seed for freedom of signs and symptoms of pathogens; conduct annual disease surveys; inspect and verify status of plants (PPQ); grow quarantined and/or photoperiod-sensitive crops, report new diseases, maintain low pest levels, bag heads prior to anthesis; identify diseases and take regulatory action; record key descriptor information for entry into GRIN; harvest seed and examine for disease symptoms; and return seed to National Plant Germplasm System.

Last Modified: 12/25/2014
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