USDA Forest Service National Tree Seed Laboratory 50 years of service to global reforestation.
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Transcript of USDA Forest Service National Tree Seed Laboratory 50 years of service to global reforestation.
![Page 1: USDA Forest Service National Tree Seed Laboratory 50 years of service to global reforestation.](https://reader036.fdocuments.us/reader036/viewer/2022062417/55155237550346a87d8b6604/html5/thumbnails/1.jpg)
USDA Forest Service National Tree Seed
Laboratory
“50 years of service to global reforestation”
![Page 2: USDA Forest Service National Tree Seed Laboratory 50 years of service to global reforestation.](https://reader036.fdocuments.us/reader036/viewer/2022062417/55155237550346a87d8b6604/html5/thumbnails/2.jpg)
National Tree Seed Laboratory
![Page 3: USDA Forest Service National Tree Seed Laboratory 50 years of service to global reforestation.](https://reader036.fdocuments.us/reader036/viewer/2022062417/55155237550346a87d8b6604/html5/thumbnails/3.jpg)
Laboratory Functions
• Seed Testing of all tree, shrub, and native plants in the US using Association of Official Seed Analysts (AOSA) rules
• Seed Bank –seed to international researchers, certificates for international seed shipments
• Technical Assistance – solve seed problems for the reforestation community
• Seed Technology Center – information distribution, www.ntsl.fs.fed.us
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Seed Testing
• Standardized seed tests for public, private, and corporate agencies – Germination percent with X-ray analysis– Purity percent– Seed per pound, seed per kilogram– Moisture content percent– Filled seed percent from X-ray analysis– Estimated viability percent
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Quality Systems Program
• Accredited by International Seed Testing Association
• Review in October 2004• Quality Assurance Manual
developed and audited internally • Management Review of manual• Standard Operating Procedures
for each seed test
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International Involvement
• Organization for Economic & Community Development (OECD) tree seed committee
• International Seed Testing Association (ISTA) meetings and committees
• International Union of Forest Research Organizations (IUFRO) seed physiology committee
• ISTA certificates for international seed shipments
• Visiting scientists from other countries • International conferences
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Yearly Seed Test Requests
0
500
1000
1500
2000
Number
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
Year
samples
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Seed Tests Type by Year
0200400600800
100012001400160018002000
Number
'92 '93 '94 '95 '96 '97 '98 '99 '00 '01
Year
sd/lb Moisture Purity germ
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Speciality Tests
0
50
100
150
200Number
'92
'93'
94 '95
'96
'97
'98
'99
'00
'01
'02
Year
Tetrazolium, excised embryo X-ray
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International Seed Bank
• Clearinghouse for international seed shipments from the Forest Service to international researchers for genetic testing for a small fee
• Maintain small seed bank in storage• Export / Import requirements for seed• Obtain phytosanitary certificates and permits • Expanded future role – germplasm
conservation
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Technical Assistance
• Free workshops on seed testing and cleaning
• Individual training on seed testing
• Tours for visiting scientists of reforestation programs (public and private)
• Projects and studies on seed problems • Support to other testing laboratories- ring
tests with ISTA and AOSA • Site visits to nurseries, seed plants, etc • Publications- regional, national,
international• Presentations at conferences, meetings
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Projects and Studies
• Juniperus scopulorum seed dormancy study• Quercus rubra seed sizing study in Northeast• Pinus palustris laboratory & nursery
temperature study• Germination media study of Pinus palustris
and Pinus taeda for AOSA and ISTA• Seed storage study of Taxodium distichum,
Liriodendron tulipera, Nyssa, Fraxinus pennsylvanica
• Prunus persica paper on tetrazolium and excised embryo for ISTA
• Stratification study of Diosypros, Malus, Liriodendron
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Seed Technology Center
• Technology Transfer- publications, information distribution
• Websites – www.ntsl.fs.fed.us , rngr.net,
• Training – workshops, conferences• Woody Plant Seed Manual –Ag
Handbook 450, ww.ntsl.fs.fed.us • Forest Service publications – Tree
Planters’ Notes, The Native Plant Journal, Seed Dealers’ Directory