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Page 70 · DO #4777 · 231_Rogers_Bx5FF27_r
- Collection
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David James Rogers (1918–2007) papers
- Item/Folder
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Correspondence - NRC Comm. on Germplasm, 1977
- Digital Object
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DO #4777,
page 70
- Collection-level dates
- 1948–1977
Page transcription
5.
Selected germplasm also enters the National Plant Germplasm System from domestic research programs. These include induced and natural mutations; cytological stocks such as monosomes, trisomes, translocations, etc; marker genes; species hybrids, breeding material with valuable combinations of characters; pest resistant stocks; and obsolete commercial varieties that may have genes useful in the future. Research personnel who develop such material have an obligation to call it to the attention of the appropriate Regional Coordinator or crop curator for inclusion in the maintenance System.
Maintenance is the responsibility of Regional and Interregional Plant Introduction Stations, curators of collections for specific crops, and the National Seed Storage Laboratory. Curators are individual research scientists with special long-term interests in particular kinds of plant germplasm who agree to maintain plant germplasm in cooperation with Regional and Interregional Stations. The National Seed Storage Laboratory is concerned with the long-term storage of seed. The Regional and Interregional Stations and the germplasm curators must continually replenish plant germplasm by regrowing accessions in the field and greenhouse and preserve viable seed stocks for distribution.
Evaluation of plant genetic resources is accomplished in several ways: (1) plant introductions are screened initially for a wide range of desirable characteristics, including their resistance to predominant diseases and insects affecting commercial crops to which they are related, and (2) are extensively evaluated in the field, greenhouse and laboratory by cooperating state, federal, and private plant scientists for the widely varying traits needed in their research. Results are reported back to the maintenance centers.