DOCSLIB.ORG

Helianthus Annuus • Test Leader Didier Demelly • Scope Purity, OSD, Germination Introduction of the Test Leader 11-1

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Helianthus Annuus • Test Leader Didier Demelly • Scope Purity, OSD, Germination Introduction of the Test Leader 11-1 Report of the Proficiency Test Committee presented by Günter Müller Proficiency Test Committee Members • Günter Müller (Chair) • Zita Ripka • Didier Demilly (Vice Chair) • Håkon Tangerås • Sharon Davidson • Benno Voit • Timothy J. Gutormson • Ruojing Wang • Mari Jürman • Gisela Wustmann • Sinikka Köylijärvi • Silvia Zanetti • Gillian McLaren • Rita Zecchinelli • Takayuki Okuda Reports Content Introduction of the Proficiency Test Leaders 2011 Results and Evaluation of performed Proficiency Test Rounds 2011 Results of accredited Laboratories Results of voluntary Laboratories Results of the Seed Mixture OSD Test Influence of Procedures for Promoting Germination and Germination Test Methods used by accredited labs on the Results. Scheduled Proficiency Test Rounds in 2012 and 2013. Introduction of the Proficiency Test Leaders 2011 Introduction of the Test Leader 11-1 • PT 11-1 Helianthus annuus • Test Leader Didier Demelly • Scope Purity, OSD, Germination Introduction of the Test Leader 11-1 • PT 11-1 Flower Seed Lathyrus odoratus • Test Leader Zita Ripka • Scope Germination Introduction of the Test Leader 11-2 • PT 11-2 Triticum aestivum • Test Leader Håkon Tangerås • Scope Purity, OSD, Germination, TZ, Moisture Content Determination Introduction of the Test Leaders • PT 11-3 Trifolium pratense • Test Leader Sinikka Köylijärvi • Scope Purity, OSD, Germination Introduction of the Test Leader Seed Mixture Training Test • Seed Mixture Training Test • Scope: OSD Round • Subject: Determination of • Test Leader 20 different weed and crop species mixed in a sample Günter Müller • Participants: 130 • Seed Testing Station (volunteers only) DE18 Results and Evaluation of performed Proficiency Test Rounds 2011 PT Rounds 2011 Purity Testing Accredited Labs 100% 1 9 80% BMP 60% C 103 99 80 B 40% A 20% 0% 11-1 H.ann 11-2 T.aes 11-3 T.pra PT Rounds 2011 Purity Testing Voluntary Labs 100% 1 3 3 1 4 80% 7 BMP 60% C 41 45 B 40% 34 A 20% 0% 11-1 H.ann 11-2 T.aes 11-3 T.pra PT11-1 Helianthus annuus; Mean Value and Standard Deviation of Pure Seed Pure Seed Sample Mean % SD 1 99.33 0.16 2 99.19 0.18 3 99.09 0.19 PT11-2 Triticum aestivum; Mean Value and Standard Deviation of Pure Seed Pure Seed Sample Mean % SD 1 98.91 0.21 2 98.87 0.21 3 98.83 0.21 PT11-3 Trifolium pratense; Mean Value and Standard Deviation of Pure Seed Pure Seed Sample Mean % SD 1 98.53 0.27 2 98.65 0.25 3 98.56 0.24 PT Rounds 2011 OSD Accredited Labs 2 100% 2 5 C; 1 6 5 13 80% BMP 60% C 96 91 B 40% 71 A 20% 0% 11-1 H.ann 11-2 T.aes 11-3 T.pra PT Rounds 2011 OSD Voluntary Labs 100% 3 4 9 10 80% 3 8 2 8 BMP 60% 16 C B 40% A 29 29 20% 17 0% 11-1 H.ann 11-2 T.aes 11-3 T.pra PT11-3 Trifolium pratense; Retrieval and Identification Rate Lot 1 Retrieval & Species name # Seeds added Identification % Lotus corniculatus 3 77.5 Polygonum aviculare 2 93.7 Taraxacum officinale 4 96.1 PT11-3 Trifolium pratense; Retrieval and Identification Rate Lot 2 Retrieval & Species name # Seeds added Identification % Elytrigia repens 4 80.7 Melilotus albus 3 39.3 Rumex longifolius 2 96.3 PT Rounds 2011 Germination Testing Accredited Labs 1 2 100% 4 2 15 2 3 18 14 80% 8 10 12 60% BMP C B 40% 79 69 68 38 A 20% 0% 11-1 H.ann 11-1 L.odo 11-2 T.aes 11-3 T.pra PT Rounds 2011 Germination Testing Voluntary Labs 100% 1 3 4 4 8 4 4 80% 9 7 3 10 60% 8 BMP C B 40% 34 35 35 A 22 20% 0% 11-1 H.ann 11-1 L.odo 11-2 T.aes 11-3 T.pra PT11-1 Helianthus annuus; Mean Value and Standard Deviation of normal Seedlings Normal Seedlings Sample Mean SD 1 95.65 1.68 2 98.03 1.00 3 86.02 2.79 PT11-1 Lathyrus odoratus; Mean Value and Standard Deviation of normal Seedlings Normal Seedlings Sample Mean SD 1 87.74 3.10 2 83.40 4.21 3 90.51 1.91 PT11-2 Triticum aestivum; Mean Value and Standard Deviation of normal Seedlings Normal Seedlings Sample Mean SD 1 89.89 1.98 2 94.30 2.38 3 95.90 1.28 PT11-3 Trifolium pratense; Mean Value and Standard Deviation of normal Seedings Normal Seedings Sample Mean SD 1 81.11 3.36 2 85.95 3.05 3 79.57 3.51 PT 11-1 Helianthus annuus; Z-Score Distribution of Normal Seedlings 80 74 68 70 59 60 49 50 40 40 26 Frequency 30 21 23 20 15 15 10 10 11 10 6 5 2 1 0 -4 -3 -2 -1 0 1 2 3 4 -4.5 -3.5 -2.5 -1.5 -0.5 0.5 1.5 2.5 3.5 4.5 >5 Z-scores PT 11-1 Helianthus annuus; Z-Score Distribution of Abnormal Seedlings 120 97 100 90 80 74 60 44 47 Frequency 40 26 20 12 11 11 6 7 3 4 2 1 0 -4 -3 -2 -1 0 1 2 3 4 -4.5 -3.5 -2.5 -1.5 -0.5 0.5 1.5 2.5 3.5 4.5 >5 Z-scores PT Rounds 2009-2011 TZ Testing Accredited Labs 100% 2 1 2 2 7 10 6 2 80% 7 BMP 60% C B 40% 38 44 45 A 20% 0% 09-1 H.vul 10-2 M. lup 11-2 T.aes PT Rounds 2009-2011 TZ Testing Voluntary Labs 100% 1 4 8 7 4 80% 3 8 6 13 BMP 60% C B 40% A 24 31 34 20% 0% 09-1 H.vul 10-2 M. lup 11-2 T.aes PT 11-2 Triticum aestivum; Z-Score Distribution of Viable Seed 70 62 61 60 50 41 40 42 40 30 23 Frequency 18 18 20 11 13 10 8 10 4 4 1 1 0 -4 -3 -2 -1 0 1 2 3 4 -4.5 -3.5 -2.5 -1.5 -0.5 0.5 1.5 2.5 3.5 4.5 >5 Z-scores PT Rounds 2009-2011 Moisture Determination Accredited Labs 100% 4 2 C; 1 2 C; 2 C; 2 3 7 13 80% BMP 60% C 64 81 B 40% 65 A 20% 0% 09-2 L.usi 10-2 V.fab 11-2 T.aes PT Rounds 2009-2011 Moisture Determination Voluntary Labs 100% 6 7 8 80% C; 1 C; 2 7 6 4 BMP 60% 7 C B 40% A 26 35 20% 15 0% 09-2 L.usi 10-2 V.fab 11-2 T.aes PT11-2 Triticum aestivum; Mean Value and Standard Deviation Moisture Content Determination Moisture Content Sample Mean SD 1 11.55 0.36 2 13.05 0.44 3 10.82 0.37 PT 11-2 Triticum aestivum; Z-Score Distribution of Moisture Content Determination 140 125 120 96 100 80 74 60 Frequency 40 35 24 14 20 11 7 12 4 2 5 3 3 2 1 1 0 -4 -3 -2 -1 0 1 2 3 4 -4.5 -3.5 -2.5 -1.5 -0.5 0.5 1.5 2.5 3.5 4.5 >5 Z-scores Conclusion of Purity Analysis Purity Analysis caused no visible problems in PT Rounds Therefore participants scored well mostly There are some small differences in the results between species tested The differences in the results between accredited and voluntary participants are not so serious Conclusion of Other Seed Determination OSD needs a lot of training and skill of the seed analysts Unexperienced participants scored poor frequently The results depend on the species tested and the seeds added To find clover seeds spiked in a clover PT Round caused visible problems There are very big differences in the results between accredited and voluntary participants Conclusion of Germination Testing There are some differences in the results between species tested This may be caused by hidden factors of seed quality for instance seed health and damages Sometimes normal seedlings were classified abnormal There are visible differences between accredited and voluntary participants Conclusion of Viability Testing In TZ Testing accredited participants achieved acceptable results since 2009 Because TZ needs a lot of profession some analysts not confident with the method classified to less viable seeds There are visible diffences in the results between accredited and voluntary participants Conclusion of Moisture Content Determination Experienced participants showed a high performance since 2009 mostly In some cases too high moisture contents were reported This may be caused by mistakes in seed grinding or insufficient drying in the oven The differences between accredited and voluntary participants are serious Results of the Seed Mixture OSD Test Seed Mixture OSD Test Comparison of Labs Accredited labs Voluntary labs n=87 n=43 1%1% 12% 14% 14% 53% 84% 21% A B C BMP Identification Rate Part 1 Species name # of seeds Identification added rate (%) Avena fatua 6 94.9 Avena sativa 6 98.5 Avena sativa black husks 5 94.4 Brachiaria brizantha 5 44.5 Cannabis sativa 7 92.2 Identification Rate Part 2 Species name # of Seeds Identification added rate (%) Chloris gayana 6 84.6 Crambe abyssinica 5 81.4 Festuca arundinacea 6 88.8 Hordeum vulgare 5 99.5 Lolium multiflorum 6 90.5 Identification Rate Part 3 Species name # of Seeds Identification added rate (%) Medicago lupulina 6 78.4 Medicago sativa 5 81.8 Panicum maximum 7 66.8 Phacelia tanacetifolia 5 90.2 Secale cereale 7 98.6 Identification Rate Part 4 Species name # of seeds Identification added rate (%) Sorghum bicolor 5 95.2 Trifolium pratense 5 88.9 Triticum aestivum 5 98.2 Triticum durum 5 92.3 xTriticosecale 5 62.9 Conclusion Seed Mixture Test Seed mixture tests are a training tool for participants not confident in seed identification It helps them to know species from all over the world used in PT Rounds It is a procedure without seed retrieval Most seeds were identifiied by paricipants in some cases however seeds were unknown and identified not or incorrectly Accredited participants scored much better than volunteers Influence of Procedures for Promoting Germination and Germination Test Methods on Results PT11-1 Helianthus annuus; Procedures for Promoting Germination Pre- # Normal Seedlings % treatment Labs Lot 1 Lot 2 Lot 3 Mean Not 67 93.8 97.2 85.7 92.2 treated Light 5 96.8 98.0 87.4 94.1 Prechill 25 98.4 96.9 84.5 93.3 PT11-1 Helianthus annuus; Substrate used for Germination Tests # Normal Seedlings % Substrate Labs Lot 1 Lot 2 Lot 3 Mean BP 42 93.6 96.7 85.5 91.9 PP 2 84.0 96.0 89.0 89.7 TP 1 98.0 97.5 85.0 93.5 S 40 94.9 97.3 85.0 92.4 OG 12 95.6 98.2 86.8 93.5 PT11-1 Helianthus annuus; Temperature used for Germination Tests Temperat # Normal Seedlings % ure Labs Lot 1 Lot 2 Lot 3 Mean 20 C 24 95.8 98.0 84.7 92.8 25 C 27 95.5 97.8 85.6 93.0 20-30 C 46 92.6 96.3 85.8 91.6 PT11-1 Lathyrus odoratus; Procedures for Promoting Germination Pre- # Normal Seedlings % treatment Labs Lot 1 Lot 2 Lot 3 Mean Not 67 89.5 87.0
Load more

Recommended publications
  • State of New York City's Plants 2018
    STATE OF NEW YORK CITY’S PLANTS 2018 Daniel Atha & Brian Boom © 2018 The New York Botanical Garden All rights reserved ISBN 978-0-89327-955-4 Center for Conservation Strategy The New York Botanical Garden 2900 Southern Boulevard Bronx, NY 10458 All photos NYBG staff Citation: Atha, D. and B. Boom. 2018. State of New York City’s Plants 2018. Center for Conservation Strategy. The New York Botanical Garden, Bronx, NY. 132 pp. STATE OF NEW YORK CITY’S PLANTS 2018 4 EXECUTIVE SUMMARY 6 INTRODUCTION 10 DOCUMENTING THE CITY’S PLANTS 10 The Flora of New York City 11 Rare Species 14 Focus on Specific Area 16 Botanical Spectacle: Summer Snow 18 CITIZEN SCIENCE 20 THREATS TO THE CITY’S PLANTS 24 NEW YORK STATE PROHIBITED AND REGULATED INVASIVE SPECIES FOUND IN NEW YORK CITY 26 LOOKING AHEAD 27 CONTRIBUTORS AND ACKNOWLEGMENTS 30 LITERATURE CITED 31 APPENDIX Checklist of the Spontaneous Vascular Plants of New York City 32 Ferns and Fern Allies 35 Gymnosperms 36 Nymphaeales and Magnoliids 37 Monocots 67 Dicots 3 EXECUTIVE SUMMARY This report, State of New York City’s Plants 2018, is the first rankings of rare, threatened, endangered, and extinct species of what is envisioned by the Center for Conservation Strategy known from New York City, and based on this compilation of The New York Botanical Garden as annual updates thirteen percent of the City’s flora is imperiled or extinct in New summarizing the status of the spontaneous plant species of the York City. five boroughs of New York City. This year’s report deals with the City’s vascular plants (ferns and fern allies, gymnosperms, We have begun the process of assessing conservation status and flowering plants), but in the future it is planned to phase in at the local level for all species.
    [Show full text]
  • Species Lists
    Appendix D: Species Lists Appendix D: Species Lists In this appendix: Great Lakes Fish Species Gravel Island NWR Gravel Island and Green Bay NWRs Harbor Island NWR Huron NWR Michigan Islands NWR (National Wildlife Refuge = NWR, Refuge) Great Lakes Fish Species Common Name Scientific Name Present/Absent Regional/State Status Lake Lake Huron Lake R3-Conservation Priority in Region 3 Michigan Superior E- Federal Endangered T-Federal Threatened SE-State Endangered ST-State Threatened SSC-State Special Concern Acipenseridae R3 (rare/declining, recreational/ Acipenser Lake sturgeon x x x economic value, tribal trust), SSC fulvescens (WI), ST (MI) Amiidae Bowfin Amia calva x x Catostomidae Catostomus White sucker x x x commersoni Catostomus Longnose sucker x x x catostomus Centrarchidae Ambloplites Rockbass x x x rupestris Micropterus Smallmouth bass x x x dolomieui Pumpkinseed Lepomis gibbosus x x x Clupeidae Dorosoma Gizzard shad # x x x cepedianum Alosa Alewife # x x pseudoharengus Cyprinidae Carp # Cyprinus Carpio x x x Esocidae Northern pike Esox Lucieus x x x Muskellunge Esox masquinongy x x x Gadidae Burbot Lota lota x x x Gobiidae Neogobius Round goby # x x x R3 (nuisance) melanostomus Moronidae White bass Morone chrysops x x Osmeridae Rainbow smelt # Osmerus mordax x x x Percichthyidae White perch # Morone americana x x x Gravel Island, Green Bay, Harbor Island, Huron, and Michigan Islands NWRs/Comprehensive Conservation Plan 221 Appendix D: Species Lists Common Name Scientific Name Present/Absent Regional/State Status Percidae R3 (rare/declining,
    [Show full text]
  • Illinois Exotic Species List
    Exotic Species in Illinois Descriptions for these exotic species in Illinois will be added to the Web page as time allows for their development. A name followed by an asterisk (*) indicates that a description for that species can currently be found on the Web site. This list does not currently name all of the exotic species in the state, but it does show many of them. It will be updated regularly with additional information. Microbes viral hemorrhagic septicemia Novirhabdovirus sp. West Nile virus Flavivirus sp. Zika virus Flavivirus sp. Fungi oak wilt Ceratocystis fagacearum chestnut blight Cryphonectria parasitica Dutch elm disease Ophiostoma novo-ulmi and Ophiostoma ulmi late blight Phytophthora infestans white-nose syndrome Pseudogymnoascus destructans butternut canker Sirococcus clavigignenti-juglandacearum Plants okra Abelmoschus esculentus velvet-leaf Abutilon theophrastii Amur maple* Acer ginnala Norway maple Acer platanoides sycamore maple Acer pseudoplatanus common yarrow* Achillea millefolium Japanese chaff flower Achyranthes japonica Russian knapweed Acroptilon repens climbing fumitory Adlumia fungosa jointed goat grass Aegilops cylindrica goutweed Aegopodium podagraria horse chestnut Aesculus hippocastanum fool’s parsley Aethusa cynapium crested wheat grass Agropyron cristatum wheat grass Agropyron desertorum corn cockle Agrostemma githago Rhode Island bent grass Agrostis capillaris tree-of-heaven* Ailanthus altissima slender hairgrass Aira caryophyllaea Geneva bugleweed Ajuga genevensis carpet bugleweed* Ajuga reptans mimosa
    [Show full text]
  • Biological Activities of Trifolium Pratense: a Review
    Acta Scientific Pharmaceutical Sciences (ISSN: 2581-5423) Volume 3 Issue 9 September 2019 Review Article Biological Activities of Trifolium Pratense: A Review Atiq-ur-Rehman1,2* 1University College of Pharmacy, University of the Punjab, Lahore, Pakistan 2Faculty of Pharmacy, The University of Lahore, Lahore, Pakistan *Corresponding Author: Atiq-ur-Rehman, Faculty of Pharmacy, The University of Lahore and University College of Pharmacy, University of the Punjab, Lahore Pakistan. Received: July 25, 2019; Published: August 16, 2019 Abstract Trifolium pratense is an important plant of the Legume family. It has drawn the attention of several researchers around the globe. This plant was traditionally used as forage or as soil improver is now seen as the plant containing vast therapeutic activities which include anti-oxidative, anti-cancer, neuroprotective, anti-hyperglycemic, anti-hyperlipidemic, osteoprotective and cardio protective properties. The therapeutic properties are shown in various in vivo, in vitro and ex vivo experiments. The review highlights the Tri- forium pratense basic knowledge its extraction, components and their actions, major activities possessed by plant along with their mechanisms. Trifolium plant is mainmajorly used in menopausal women to reduce the discomfort and menopausal effects such as moderate cancer causing cells. Various strategies were applied and the plant is still under study for further development in its effects. hot flushes and increase in breast density. The plant is also majorly responsible for preventing breast cancer and other apoptosis of Keywords: Trifolium Pratense; Cancer; Trifolium Introduction Family The genus Trifolium comprises of almost 240 species each re- It belongs to the family Fabeaceae leguminosae. markable for its agricultural and therapeutic effects.
    [Show full text]
  • RED CLOVER This Plant May Become Weedy Or Invasive in Some Regions Or Habitats and May Displace Other Vegetation Trifolium Pratense L
    Plant Guide Weediness RED CLOVER This plant may become weedy or invasive in some regions or habitats and may displace other vegetation Trifolium pratense L. if not properly managed. Consult your local NRCS Plant Symbol = TRPR2 Field Office, Cooperative Extension Service Office, or state natural resource or agriculture department Contributed by: Idaho Plant Materials regarding its status and use. Weed information is also available from the PLANTS web site at plants.usda.gov Description Trifolium pratense L., red clover, is an introduced biennial or short-lived perennial that grows as one of two types: medium (double-cut) or mammoth (single- cut). Red clover initiates growth from the plant crown. Plants have hollow, hairy stems and branches. Stem lengths of medium and mammoth types average 18 inches and 24-30 inches, respectively. Medium types have about 4 branches per stem; mammoth types have 6 branches per stem. USDA NRCS PLANTS Each leaf consists of a slender stalk bearing 3 leaflets. The taproot of red clover normally disintegrates in the second year and plants that Uses survive have developed secondary, extensively Red clover is the most widely grown of all the true branched roots. Flowers are borne in compact clovers and is the most important legume hay crop in clusters at the tips of the branches and are usually the northeastern United States. Red clover is rose-pink in color. The flower shape is similar to pea primarily used for hay, pasture, silage, and soil flowers except is more elongated and much smaller. improvement. It is a quick growing crop, easily Flower heads usually consist of up to 125 flowers.
    [Show full text]
  • Conservation Plants Pocket ID Guide
    About this guide.......... The purpose of this guide is to help you identify come commonly used conservation plants. Its color photos, line drawings and seed photos will help you make identifications. Also included are plant stand evaluation and recommended use charts. Keep this guide with you as long as you need it! Uses 1 2 Evaluating Stands Seeding success may not be obvious from visual observation. Use the chart below to determine whether your first-year stand is adequate. Lay a square-foot frame, or a circular frame with a 42.5-inch circumference on the ground. Count the number of seedlings within the frame, taking at least 10 counts for each 10 acres, in representative areas of the field. The table is based on pure stands; if a mixture of grass and legume is planted, reduce the numbers by the ratio of each species planted. Inadequate stands should be re-seeded. When a stand is judged to be between adequate and inadequate, it should be reevaluated after the second growing season. Warm-season grasses may need to be evaluated after the third growing season. 3 Seeds Early ID -- Seed is Key Grasses can be very difficult to identify in early growth stages. The seed may be the best identify aid. A seed retains its form and position in the ground through the seedling's early growth stages. To identify a seedling, carefully dig it up and compare it to photographs or actual seeds. 4 Plant Parts Conservation Plants The Elsberry Plant Materials Center The Elsberry Plant Materials Center is a 243-acre facility near Elsberry, Missouri.
    [Show full text]
  • Comparative Analysis of Nodulation-Related Small Secreted Peptides Across Legume Species
    Comparative analysis of nodulation-related small secreted peptides across legume species A DISSERTATION SUBMITTED TO THE FACULTY OF THE UNIVERSITY OF MINNESOTA BY Diana Trujillo IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF DOCTOR OF PHILOSOPHY Nevin Young November 2017 © Diana Trujillo 2017 Acknowledgments I would like to thank all those who, one way or another, have made this work possible. First and foremost, thanks go to my advisor, Nevin Young, who helped shape my vision for this project and was always available to give me support or the necessary guidance in the right direction. I would also like to thank Kevin Silverstein who played a large role during the development of my LSE pipeline, and was a helpful mentor in bioinformatic matters. Thanks to the other members of my advisory committee, Peter Morrell, Michael Sadowsky, and Robert Stupar, who provided a fresh outlook and valuable advice that helped to improve this study. I would like to thank Joseph Guhlin and Peng Zhou who were always one step away when I had Unix concerns, and Shaun Curtin and Roxanne Denny who guided me through the technical aspects of growing or transforming Medicago. I am grateful that I had a strong network of friends and colleagues to discuss biology, coding, and life. To Allison Haaning, Beth Fallon, Christina Smith, Leland Werden, Derek Nedveck, and Eli Krumholz: thanks for sharing the journey. I would like to thank my mother, María Cecilia, who instilled my love of reading, truth-seeking, and plants. To my husband, Dylan Huss, thank you for always calling to see if I already ate (including as I typed these words).
    [Show full text]
  • Biology of a New Virus Isolated from Lupinus Nootkatensis Plants in Alaska
    University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln U.S. Department of Agriculture: Agricultural Publications from USDA-ARS / UNL Faculty Research Service, Lincoln, Nebraska 2004 Biology of a new virus isolated from Lupinus nootkatensis plants in Alaska N. L. Robertson USDA, ARS Follow this and additional works at: https://digitalcommons.unl.edu/usdaarsfacpub Robertson, N. L., "Biology of a new virus isolated from Lupinus nootkatensis plants in Alaska" (2004). Publications from USDA-ARS / UNL Faculty. 1443. https://digitalcommons.unl.edu/usdaarsfacpub/1443 This Article is brought to you for free and open access by the U.S. Department of Agriculture: Agricultural Research Service, Lincoln, Nebraska at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in Publications from USDA-ARS / UNL Faculty by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. Plant Pathology (2004) 53, 569–576 Doi: 10.1046/j.0032-0862.2004.01058.x BlackwellBiology Publishing, Ltd. of a new virus isolated from Lupinus nootkatensis plants in Alaska N. L. Robertson USDA, ARS, Arctic Plant Germplasm Introduction and Research Project, 533 E. Fireweed Avenue, Palmer, AK 99645, USA A new virus named Nootka lupine vein-clearing virus (NLVCV) was isolated from Lupinus nootkatensis plants that were confined to a relatively small area in the Talkeetna mountains of south-central Alaska. Annual surveys (2000–03) con- sistently found leaf symptoms of pronounced vein clearing and mosaic on 3- to 4-week-old plants in late June. Spherical particles ≈30 nm in diameter were isolated from these leaves. Virions contained a single-stranded RNA of ≈4·0–4·2 kb and one species of capsid protein estimated to be ≈40 kDa.
    [Show full text]
  • 2.4 FORAGE LEGUMES MILLETS and TIMOTHY.Pdf
    2.4 FORAGE LEGUMES, MILLETS AND TIMOTHY** Alfalfa, clovers, sweet clover, crown vetch, kidney vetch, cicer milkvetch, birds-foot’s trefoil, black medick, timothy, millets (Grade Tables VIII to X) ** Note: MIXTURES Forage mixtures, lawn mixtures, and ground cover mixtures (Grade Tables XIII to XV), prerequisite accreditation for forage legumes, millets and timothy and grasses English Common Picture Grade Y/N Botanical Name Full Botanical Name & References Tables Name French Common Name Family y Anthyllis vulneraria Anthyllis vulneraria L. VIII Vetch, kidney Anthyllide vulnéaire Fabaceae y Astragalus cicer Astragalus cicer L. VIII Milk-vetch, cicer Astragale pois chiche Fabaceae Echinochloa frumentacea Link or E. esculenta (A. Brown) H. Scholz. (=E. crus-galli (L.) P. Beauv. var. frumentacae y Echinochloa frumentacea (Link) E. G. Camus & A. Camus) VIII Millet, Japanese Millet japonais Poaceae Kummerowia stipulacea (Maxim.) Makino (=Lespedeza y Kummerowia stipulacea stipulacea Maxim.) VIII Lespedeza. Korean Lespédeza, de Corée Fabaceae Kummerowia striata (Thunb.) Schindl. (=Lespedeza Lespedeza, common or y Kummerowia striata striata (Thunb.) Hook. & Arn.) VIII Kobe Lespédeza, commun ou kobe Fabaceae Lespedeza, sericea or Lespédeza, sericea ou de y Lespedeza cuneata Lespedeza cuneata (Dum.-Cours.) G. Don VIII Chinese Chine Fabaceae y Lotus corniculatus Lotus corniculatus L. X Trefoil, bird's foot Lotier corniculé Fabaceae y Medicago lupulina Medicago lupulina L. IX Medick, black Lupuline Fabaceae y Medicago sativa Medicago sativa L. VIII Alfalfa Luzerne Fabaceae Clover sweet - white Mélilot ou trèfle d'odeur - y Melilotus albus Melilotus albus Medik. VIII blossom fleurs blanches Fabaceae Clover sweet - yellow Mélilot ou trèfle d'odeur - y Melilotus officinalis Melilotus officinalis (L.) Lam.
    [Show full text]
  • Nectar and Pollen Plants
    NECTAR AND POLLEN PLANTS BY EVERETT OEETEL > A beekeeper must have available data on the Beekeepers are advised to record the blossoming nectar and pollen plants in the vicinity of his api- period for the nectar and pollen plants in their ary for successful honey production. Such informa- vicinity (fig. 1). Most State agricultural extension tion enables him to determine when to install services have publications available on beekeeping. package bees, divide colonies, put on supers, use These publications usually contain a list of the swarm-control measures, remove honey, requeen, important nectar and pollen plants. Unknown prepare colonies for winter, and locate profitable plants can be sent to the botany department of the apiary sites. State university for identification. Vansell {1931) listed 150 species of nectar and pollen plants in California, but only six are princi- Beekeeping Locations pal sources for commercial honey production. He listed about 90 species of nectar and pollen plants Beekeepers, especially commercial operators, in Utah but noted that the main sources of com- have learned that the nectar- and pollen-producing mercial honey are alfalfa and sweetclover (1949). plants may change considerably over the years. Wilson et al. (1958) observed honey bees visiting Variations may be caused by droughts, changes in the blossoms or extrafloral nectaries of 110 species agricultural crops and practices, irrigation projects, of plants in Colorado, of which the most important and subdivision development. Changes have been honey sources were alfalfa, yellow sweetclover, and particularly rapid since World War II and are dandelion (fig. 1). likely to continue. Acreages planted to buckwheat, alsike clover, and cotton have decreased, whereas those with alfalfa hay, mustard, safflower, and soybeans have increased.
    [Show full text]
  • Long-Term Dynamics of Plant Communities After Biological
    www.nature.com/scientificreports OPEN Long‑term dynamics of plant communities after biological remediation of oil‑contaminated soils in far north A. B. Novakovskiy1*, V. A. Kanev1 & M. Y. Markarova1,2 We studied the long‑term dynamics of plant communities after bio and phytoremediation of oil‑ polluted soils. Nine plots located in European Northeast and treated using various bioremediation methods were monitored from 2002 to 2014. Geobotanical descriptions (relevés) of each plot were performed in 2006 and 2014, and Grime’s theoretical CSR (competition–stress–ruderality) framework was used to assess the vegetation state and dynamics. We observed a clear shift of communities from pioneer (where ruderal species were prevalent) to stable (where competitor species were dominant) states. However, the remediation type did not signifcantly impact the vegetation recovery rate. After 12 years, all methods led to a 55–90% decrease in the oil content of the soil and a recovery of the vegetation cover. The plant communities contained mainly cereals and sedges which signifcantly difered from the original tundra communities before the oil spill. The control plot, treated only by mechanical cleaning, had minimum oil degradation rate (50%) and vegetation recovery rates, although, in CSR terms, its vegetation assemblage resembled the background community. Cereals (Agrostis gigantea, Deschampsia cespitosa, Phalaris arundinacea, and Poa pratensis), sedges (Carex canescens, Carex limosa, and Eriophorum vaginatum), and shrubs (Salix) were found to be the most efective species for phytoremediation, exhibiting high community productivity under the harsh northern conditions. Modern human activity is strongly associated with the extraction, storage, transportation, and refning of large volumes of petroleum products.
    [Show full text]
  • Cytoplasmic Inheritance of Plastids in Impatiens Sultanii Hook, F., Petunia
    CYTOPLASMIC INHERITANCE OF PLASTIDS IN IMPATIENS SULTANII HOOK, P., PETUNIA VIOLACEA LINDL. AND CHOLROPHYTUM ELATUM R. BR.1 K. K. PANDEY AND GLENN W. BLAYDES Department of Botany and Plant Pathology, The Ohio State University, Columbus 10 INTRODUCTION The inheritance and mode of chlorophyll distribution in variegated plants have long attracted the attention of botanists. It is probable that most variegated varieties of plant species, domesticated and wild, are somatic, mutant individuals which appear as chimeras (Blaydes, 1953). Many of these may be propagated vegetatively and persist indefinitely through the aid of man. However, the understanding of the processes involved in the structure and inheritance of leaf variegation is still far from complete. A favorable condition for the study of chlorophyll inheritance is found in plants where one or more shoots are completely albino. Such shoots are incapable of independent existence, except when under special cultural methods, and may be found as mutants or somatic segregates on green or variegated plants (Blaydes, 1953). The most frequent occurrence of such albino mutants is found in periclinally, mericlinally and sectorially variegated plants. Since flowers on albino shoots are frequently unable to produce seed normally, mericlinal, periclinal, or sectorial chimeras are generally used for genetical experiments. As the repro- ductive cells are derived from the sub-epidermal layer of the shoot, the second layer of the shoot apex must be regularly albino if the genetic data from crosses in such plants are to be relied upon. Sectorially variegated plants in which the histogenic tissues are constantly rearranging are not reliable for genetic studies on variegation.
    [Show full text]