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You searched for: Subject term cultivars Remove constraint Subject term: cultivars Subject term Agricultural Research Service Remove constraint Subject term: Agricultural Research Service Text availability Citation in PubAg Remove constraint Text availability: Citation in PubAg
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1. Registration of 'Bigbee' berseem clover

Author:
Knight, W.E.
Source:
Crop science 1985 v.25 no.3 pp. 571-572
ISSN:
0011-183X
Subject:
cultivars; Agricultural Research Service; Trifolium alexandrinum; United States
DOI:
10.2135/cropsci1985.0011183X002500030038x

2. Registration of 'Dawson' soybean

Author:
Orf, J.H.; Lambert, J.W.; Kennedy, B.W.
Source:
Crop science 1985 v.25 no.3 pp. 572
ISSN:
0011-183X
Subject:
Agricultural Research Service; cultivars; Glycine max
DOI:
10.2135/cropsci1985.0011183X002500030039x

3. Registration of 'NC 85' tobacco

Author:
Gwynn, G.R.
Source:
Crop science 1985 v.25 no.3 pp. 573
ISSN:
0011-183X
Subject:
cultivars; Agricultural Research Service; Nicotiana tabacum; United States
DOI:
10.2135/cropsci1985.0011183X002500030041x

4. Registration of Centura wheat

Author:
Schmidt, J.W.; Johnson, V.A.; Mattern, P.J.; Dreier, A.F.; McVey, D.V.; Hatchett, J.H.
Source:
Crop science 1985 v.25 no.3 pp. 574
ISSN:
0011-183X
Subject:
cultivars; Agricultural Research Service; Triticum aestivum; United States
DOI:
10.2135/cropsci1985.0011183X002500030043x

5. Registration of Colt wheat

Author:
Schmidt, J.W.; Johnson, V.A.; Mattern, P.J.; Dreier, A.F.; McVey, D.V.; Hatchett, J.H.
Source:
Crop science 1985 v.25 no.3 pp. 574-575
ISSN:
0011-183X
Subject:
Agricultural Research Service; cultivars; Triticum aestivum
DOI:
10.2135/cropsci1985.0011183X002500030044x

6. Registration of Glenman wheat

Author:
McNeal, F.H.; Alexander, W.L.; McGuire, C.F.; Bergman, J.W.; Carlson, G.R.; Dubbs, A.L.; Kushnak, G.D.; Stallknect, G.F.; Stewart, V.R.; Sharp, E.L.
Source:
Crop science 1985 v.25 no.3 pp. 575
ISSN:
1435-0653
Subject:
Agricultural Research Service; cultivars; Triticum aestivum
DOI:
10.2135/cropsci1985.0011183X002500030045x

7. Registration of Karla barley

Author:
Wesenberg, D.M.; Robbins, G.S.; Burger, W.C.
Source:
Crop science 1985 v.25 no.3 pp. 570
ISSN:
0011-183X
Subject:
cultivars; Hordeum vulgare; Agricultural Research Service; United States
DOI:
10.2135/cropsci1985.0011183X002500030035x

8. Registration of Nodak pinto bean

Author:
Grafton, K.F.; Schneiter, A.A.; Burke, D.W.; Weiser, G.C.
Source:
Crop science 1985 v.25 no.3 pp. 571
ISSN:
0011-183X
Subject:
Phaseolus vulgaris; cultivars; Agricultural Research Service
DOI:
10.2135/cropsci1985.0011183X002500030037x

9. Planting Date in Relation to Yield and Yield Components of Wheat in the Middle Atlantic Region

Author:
T. R. Rocheford; D. J. Sammons; P. S. Baenziger
Source:
Agronomy journal 1988 v.80 no.1 pp. 30-34
ISSN:
0002-1962
Subject:
Agricultural Research Service; Triticum aestivum; agronomy; coastal plains; cultivars; environmental factors; grain yield; piedmont; planting date; seeds; soft red winter wheat; winter wheat; Maryland; Mid-Atlantic region
Abstract:
... A 2-yr study was conducted to assess the effects of early and late planting on six soft red winter wheat (Triticum aestivum L.) cultivars. The purpose was to determine if increased flexibility in planting date is possible for modern wheat cultivars grown in the Middle Atlantic states. Wheat was planted 2 wk prior to, on, and 2 wk after the recommended fly-free planting date at Clarksville (Piedmon ...
DOI:
10.2134/agronj1988.00021962008000010007x

10. Relationship between Plant Height and Flowering Date in Determinate Soybean

Author:
Sun Maw Lin; Randall Nelson
Source:
Crop science 1988 v.28 no.1 pp. 27-30
ISSN:
0011-183X
Subject:
Agricultural Research Service; Argiudolls; Glycine max; cultivars; flowering date; heritability; lodging resistance; phenotypic correlation; plant height; silt loam soils; soybeans; stem elongation; Illinois
Abstract:
... There is increasing interest in growing determinate soybean [Glycine max (L.) Merr.] in the northern USA because of their yielding ability and lodging resistance. These cultivars are approximately half as tall as indeterminate cultivars. The objectives of this study were to estimate the heritabilities of days to R1 and R8, and plant heights at R1 and R8; and to evaluate the relationships among the ...
DOI:
10.2135/cropsci1988.0011183X002800010006x

11. Continuous Application of No-Tillage to Ohio Soils

Author:
W. A. Dick; E. L. McCoy; W. M. Edwards; R Lal
Source:
Agronomy journal 1991 v.83 no.1 pp. 65-73
ISSN:
0002-1962
Subject:
Agricultural Research Service; Fragiudalfs; Glycine max; agronomy; conventional tillage; corn; crop rotation; cultivars; no-tillage; organic matter; poorly drained soils; runoff; soil profiles; soybeans; surface water; watersheds; weather; Ohio
Abstract:
... No-tillage (NT) crop production practices have been continuously maintained at four sites in Ohio for more than 25 yr. The original experiments involving NT were designed to determine how much tillage was required to produce crops with satisfactory yields and how tillage and rotation interact to effect crop yields, especially corn (Zen mays L.). Long-term effects of NT on crop yields and soil prop ...
DOI:
10.2134/agronj1991.00021962008300010017x

12. Nitrate Uptake and Assimilation and Chlorate Tolerance of Wheat

Author:
C. T. MacKown; D. A. Van Sanford; Christy G. Rothwell
Source:
Crop science 1996 v.36 no.2 pp. 313-318
ISSN:
0011-183X
Subject:
Agricultural Research Service; Triticum aestivum; chlorates; chlorophyll; chlorosis; crops; cultivars; herbicides; leaf blade; nitrates; nutrition; seedlings; soft red winter wheat; toxicity; Kentucky
Abstract:
... Productivity of nonlegume crops depends partly on nitrate uptake and reduction. To study the nitrate assimilation pathway of plants, the herbicide chlorate has been exploited as an analog of nitrate. Marked variations in visible leaf chlorosis among 15 soft red winter wheat (Triticum aestivum L.) seedlings exposed to 120 μM chlorate were reported by others. From their study, we selected three chlo ...
DOI:
10.2135/cropsci1996.0011183X003600020017x

13. A Relational Database for Agronomic and Genealogical Sugarcane Data

Author:
Eric T. Stafne; James S. Brown; James M. Shine
Source:
Agronomy journal 2001 v.93 no.4 pp. 923-928
ISSN:
0002-1962
Subject:
Agricultural Research Service; breeding programs; computer software; crossing; cultivars; databases; inventories; pedigree; plant breeding; planting; seedlings; sugarcane; true seeds
Abstract:
... A comprehensive relational database has been created at the USDA-ARS Canal Point Sugarcane Field Station to facilitate the entry and retrieval of data for the breeding program using Microsoft Access 2000. This software is readily available and easily adaptable to a wide variety of breeding programs. A relational database provides an efficient and powerful way to store, retrieve, manipulate, query, ...
DOI:
10.2134/agronj2001.934923x

14. 'Biloxi' southern highbush blueberry

Author:
Spiers, J.M.; Stringer, S.J.; Draper, A.D.; Gupton, C.L.
Source:
Acta horticulturae 2002 v. no.574 pp. 153-155
ISSN:
0567-7572
Subject:
Agricultural Research Service; Vaccinium corymbosum; blueberries; breeding; coastal plains; color; cultivars; diploidy; firmness; flavor; growers; hexaploidy; markets; parentage; planting; pollination; ripening; spring; tetraploidy; Southeastern United States
Abstract:
... ‘Biloxi’ tetraploid southern highbush blueberry is a new cultivar developed and released by the Agricultural Research Service of the U.S. Department of Agriculture breeding programs in Beltsville, MD, and Poplarville MS. Plants of “Biloxi’ are upright, vigorous and productive. The fruit ripens early, has medium size, with good color, firmness, stem scar, and flavor. Although ‘Biloxi’ is predominan ...
DOI:
10.17660/ActaHortic.2002.574.21

15. Elimination of viruses from the USDA Pyrus germplasm collection

Author:
Postman, J.D.; Sugar, D.
Source:
Acta horticulturae 2002 v. no.596 pp. 529-530
ISSN:
0567-7572
Subject:
Agricultural Research Service; Pyrus; apical meristems; clones; cultivars; genotype; germplasm; germplasm conservation; hybrids; indicator species; pears; seed trees; viruses; Oregon
Abstract:
... The national genebank for Pyrus in the U.S.A. is maintained by the United States Department of Agriculture, Agricultural Research Service at the National Clonal Germplasm Repository in Corvallis, Oregon. This collection represents world diversity for pears and includes over 1700 accessions representing the 26 major taxa of Pyrus and their hybrids. Clonal genotypes are stored as orchard trees with ...
DOI:
10.17660/ActaHortic.2002.596.88

16. Nature of resistance of sweetpotato to sweetpotato virus disease

Author:
Mwanga, R.O.M.; Moyer, J.W.; Zhang, D.P.; Carey, E.E.; Yencho, G.C.
Source:
Acta horticulturae 2002 v. no.583 pp. 113-119
ISSN:
0567-7572
Subject:
Agricultural Research Service; Crinivirus; additive gene effects; amplified fragment length polymorphism; cultivars; general combining ability; genes; loci; quantitative trait loci; specific combining ability; sweet potatoes; variance; viruses; North Carolina; Peru; South Carolina; Uganda
Abstract:
... Sweetpotato virus disease (SPVD) is a disease syndrome due to the dual infection and synergistic interaction of sweetpotato chlorotic stunt crinivirus (SPCSV) and sweetpotato feathery mottle potyvirus (SPFMV). SPVD causes up to 98% yield loss in East Africa. Uganda’s sweetpotato breeding program released six sweetpotato cultivars with moderate to high levels of field SPVD resistance in 1995. A mul ...
DOI:
10.17660/ActaHortic.2002.583.12

17. Alturas: A multi-purpose, Russet potato cultivar with high yield and tuber specific gravity

Author:
R. G. Novy; D. L. Corsini; S. L. Love; J. J. Pavek; A. R. Mosley; S. R. James; D. C. Hane; C. C. Shock; K. A. Rykbost; C. R. Brown; R. E. Thornton
Source:
American journal of potato research 2003 v.80 no.5 pp. 295-301
ISSN:
1099-209X
Subject:
Alternaria solani; necrosis; tubers; French fries; crop yield; potatoes; specific gravity; fresh market; blight; nitrogen content; Verticillium wilt; biological resistance; cultivars; agricultural experiment stations; Phytophthora infestans; Fusarium; Agricultural Research Service; growing season; drying; Verticillium dahliae; Streptomyces scabiei; Idaho; Oregon
Abstract:
... ‘Alturas’, a late-maturing, high-yielding, russet potato cultivar with high tuber specific gravity, was released in 2002 by the USDA-ARS and the Agricultural Experiment Stations of Idaho, Oregon, and Washington. Originally selected for dehydration processing, its cold-sweetening resistance also makes it suitable for processing out of storage into french fries and other frozen potato products. Culi ...
DOI:
10.1007/BF02854312

18. Breeding Improved Grasses for Semiarid Rangelands

Author:
Asay, K.H.; Chatterton, N.J.; Jensen, K.B.; Jones, T.A.; Waldron, B.L.; Horton, W.H.
Source:
Arid land research and management 2003 v.17 no.4 pp. 469-478
ISSN:
1532-4982
Subject:
Agricultural Research Service; Agropyron cristatum; Agropyron fragile; Bromus tectorum; Taeniatherum caput-medusae subsp. asperum; breeding; cultivars; forage; genetic improvement; genetic variation; germplasm; grasses; grazing; habitats; indigenous species; livestock; rangelands; rye; semiarid zones; soil resources; vegetation; watersheds; weeds; wildlife; Utah
Abstract:
... Vast areas of semiarid rangelands in western USA are severely degraded and infested with troublesome weeds such as cheatgrass (Bromus tectorum) and medusahead rye (Taeniatherum asperum). Reseeding with appropriate plant materials that are adapted to the site and competitive enough to replace existing undesirable vegetation is often the most plausible way to reclaim such sites. Unfortunately, many ...
DOI:
10.1080/713936115

19. First Report of Rhizomania Disease of Sugar Beet Caused by Beet necrotic yellow vein virus in the Great Lakes Production Region

Author:
Wintermantel, William M.; Crook, Teresa; Fogg, Ralph
Source:
Plant disease 2003 v.87 no.2 pp. 201
ISSN:
0191-2917
Subject:
Beet necrotic yellow vein virus; plant pathology; seedlings; Chenopodium quinoa; sand; roots; beets; absorbance; antibodies; viruses; Polymyxa betae; planting; antiserum; rhizomania; geographical distribution; crop production; cultivars; sampling; sugar beet; discoloration; indicator species; sanitation; soil; quarantine; disease surveillance; Beta vulgaris; soil fungi; Agricultural Research Service; testing; Great Lakes; Ohio; California; Michigan; Europe; Ontario; Great Lakes region
Abstract:
... Rhizomania, caused by Beet necrotic yellow vein virus (BNYVV) and vectored by the soilborne fungus Polymyxa betae Keskin, is one of the most economically damaging diseases affecting sugar beet (Beta vulgaris L.). The virus likely originated in Europe and was first identified in California in 1983 (1). It has since spread among American sugar beet production regions in spite of vigorous sanitation ...
DOI:
10.1094/PDIS.2003.87.2.201C

20. Inheritance of Seed Color in Flax

Author:
Omprakash Mittapalli; Gordon Rowland
Source:
Crop science 2003 v.43 no.6 pp. 1945-1951
ISSN:
0011-183X
Subject:
Agricultural Research Service; Linum usitatissimum; alleles; color; cultivars; epistasis; flax; homozygosity; inheritance (genetics); linolenic acid; loci; markets; mutants; recessive genes; testcrosses; Canada
Abstract:
... Seed color of flax (Linum usitatissimum L.) is used in Canada to identify the two main market types. Traditional, high linolenic acid flax must have brown seed, while solin or zero linolenic acid flax must be yellow-seeded. The objective of this study was to determine the allelic–gene relationship of the dominant yellow gene, the variegated recessive gene, and various spontaneous and unknown reces ...
DOI:
10.2135/cropsci2003.1945

21. Registration of 'Bolivar' rice

Author:
McClung, A.M.; Bergman, C.J.; Fjellstrom, R.G.; Bormans, C.A.; Park, W.D.; Marchetti, M.A.
Source:
Crop science 2004 v.44 no.1 pp. 353-355
ISSN:
0011-183X
Subject:
Oryza sativa; rice; cultivars; laws and regulations; germplasm releases; Agricultural Research Service; disease resistance; Magnaporthe grisea; Thanatephorus cucumeris; plant pathogenic fungi; Cercospora; plant anatomy; Texas

22. Registration of 'Merlot' small red bean

Author:
Hosfield, G.L.; Varner, G.V.; Uebersax, M.A.; Kelly, J.D.
Source:
Crop science 2004 v.44 no.1 pp. 351-352
ISSN:
0011-183X
Subject:
Phaseolus vulgaris; red beans; cultivars; laws and regulations; germplasm releases; Agricultural Research Service; disease resistance; Uromyces appendiculatus; plant pathogenic fungi; agronomic traits; canning; pest resistance; genes; plant viruses; Bean common mosaic necrosis virus; Colletotrichum lindemuthianum; Michigan

23. Registration of KBNT lpa-1-1 low phytic acid germplasm of rice

Author:
Rutger, J.N.; Raboy, V.; Moldenhauer, K.A.K.; Bryant, R.J.; Lee, F.N.; Gibbons, J.W.
Source:
Crop science 2004 v.44 no.1 pp. 363
ISSN:
0011-183X
Subject:
Oryza sativa; rice; cultivars; phytic acid; mutants; phenotype; germplasm releases; laws and regulations; Agricultural Research Service; grain yield; gamma radiation; irradiation; seeds; phosphorus; humans; livestock; digestibility; nutrient uptake; Arkansas

24. Southern regional research center reveals colorful new methods

Author:
Kimmel, L.; Delhom, C.; Folk. C.
Source:
Proceedings of the Beltwide Cotton Conferences 2004 pp. 2736-2741
Subject:
cotton; cultivars; textile fibers; processing technology; pigmentation; Agricultural Research Service; Gossypium hirsutum; methodology; governmental programs and projects; color; fiber quality; Louisiana
Abstract:
... Naturally colored cotton refers to cultivars that produce lint in any color other than white. Breeders have improved the agronomic and physical properties of some colored cottons recently. However, the prevalence of short, weak fibers has presented some real and perceived processing concerns. The purpose of this paper is to report on the experiences of government scientists during their work with ...
Handle:
10113/12180

25. Registration of 'MiniMax' Soybean

Author:
Matthews, B.F.; MacDonald, M.H.; Song, Q.J.; Cregan, P.B.; Lewers, K.S.
Source:
Journal of plant registrations 2007 v.1 no.2 pp. 97-98
ISSN:
1936-5209
Subject:
Glycine max; soybean products; vegetable crops; cultivars; germplasm releases; crop yield; Agricultural Research Service; height; plant density; early development; Maryland
DOI:
10.3198/jpr2006.10.0653crc

26. Registration of 'Waxy-Pen' Soft White Spring Waxy Wheat

Author:
Morris, C.F.; King, G.E.
Source:
Journal of plant registrations 2007 v.1 no.1 pp. 23-24
ISSN:
1936-5209
Subject:
germplasm releases; cultivars; grain crops; amylose; soft white wheat; Agricultural Research Service; spring wheat; Triticum aestivum; grain yield; food composition; functional properties
DOI:
10.3198/jpr2006.08.0551crc

27. Area-wide Demonstration of Chemical Alternatives to Methyl Bromide for Florida Ornamentals

Author:
Rosskopf, Erin N.; Kokalis-Burelle, Nancy; Nissen, Eric; Nissen, Ole; Hartman, Robert; Skvarch, Ed; McSorley, Robert; Kreger, Robert; Estes, Tony; Owens, Clay
Source:
Annual International Research Conference on Methyl Bromide Alternatives and Emissions Reductions : [proceedings] 2008 pp. 29-37
Subject:
ornamental plants; cultivars; application rate; pesticide application; Agricultural Research Service; plant parasitic nematodes; methyl iodide; chloropicrin; Pythium; fumigants; plant pathogenic fungi; nematode control; methyl bromide; soil fumigation; Fusarium; Florida
Handle:
10113/35772

28. Registration of ‘L 99-226’ Sugarcane

Author:
K. P. Bischoff; K. A. Gravois; T. E. Reagan; J. W. Hoy; C. M. Laborde; C. A. Kimbeng; G. L. Hawkins; M. J. Pontif
Source:
Journal of plant registrations 2009 v.3 no.3 pp. 241-247
ISSN:
1940-3496
Subject:
plant viruses; plant pathogenic bacteria; crop yield; sugarcane; plant pathogenic fungi; pest resistance; Saccharum officinarum; hybrids; patents; Diatraea saccharalis; Ustilago scitaminea; disease resistance; Xanthomonas albilineans; interspecific hybridization; plant variety protection; cultivars; insect pests; genetic improvement; Saccharum spontaneum; germplasm releases; rust diseases; crop quality; Saccharum barberi; Agricultural Research Service; smut diseases; Saccharum sinense; agronomic traits; Puccinia melanocephala; Louisiana
Abstract:
... ‘L 99-226’ (Reg. No. CV-138, PI 655533) sugarcane (a complex hybrid of Saccharum officinarum L., S. barberi Jeswiet, S. spontaneum L., and S. sinense Roxb. amend. Jeswiet) was released on 25 Apr. 2006 by the Louisiana State University Agricultural Center (LSU AgCenter) in cooperation with the USDA–ARS and the American Sugar Cane League, Inc. L 99-226 was released because of its high sugar and cane ...
DOI:
10.3198/jpr2009.04.0210crc

29. Registration of ‘L 99-233’ Sugarcane

Author:
K. A. Gravois; K. P. Bischoff; J. W. Hoy; T. E. Reagan; C. M. LaBorde; C. A. Kimbeng; G. L. Hawkins; M. J. Pontif
Source:
Journal of plant registrations 2009 v.3 no.3 pp. 248-252
ISSN:
1940-3496
Subject:
plant viruses; plant pathogenic bacteria; crop yield; sugarcane; plant pathogenic fungi; high-yielding varieties; pest resistance; Saccharum officinarum; hybrids; patents; Diatraea saccharalis; Ustilago scitaminea; disease resistance; Xanthomonas albilineans; interspecific hybridization; plant variety protection; insect pests; genetic improvement; Saccharum spontaneum; germplasm releases; rust diseases; crop quality; Saccharum barberi; Agricultural Research Service; smut diseases; Saccharum sinense; agronomic traits; Puccinia melanocephala; Louisiana
Abstract:
... ‘L 99-233’ (Reg. No. CV-139, PI 655534) sugarcane (a complex hybrid of Saccharum officinarum L., S. barberi Jeswiet, S. spontaneum L., and S. sinense Roxb. amend. Jeswiet) was released on 25 Apr. 2006 by the Louisiana State University Agricultural Center in cooperation with the USDA–ARS and the American Sugar Cane League Inc. L 99-233 was released because of its high sugar and cane yields along wi ...
DOI:
10.3198/jpr2009.04.0212crc

30. Berry trials in the Azores

Author:
Mota, J.; Hummer, K.; Williams, R.
Source:
Acta horticulturae 2011 v. no.918 pp. 753-758
ISSN:
0567-7572
Subject:
Agricultural Research Service; Rubus idaeus; Spodoptera littoralis; Vaccinium corymbosum; apples; bananas; blackberries; blueberries; budbreak; crops; cultivars; germplasm; grapes; horticulture; hybrids; leaf rust; pears; pineapples; raspberries; temperate zones; Azores; Oregon
Abstract:
... The Direcção de Serviços de Agricultura e Pecuária, Ponta Delgada, São Miguel, Açores, Portugal, began a collaboration with the United States Department of Agriculture, Agricultural Research Service, National Clonal Germplasm Repository at Corvallis, Oregon, and The Ohio State University, Department of Entomology in 2004. While previous horticultural production in the Azores included bananas, pine ...

31. Russian wheat aphid biotype RWASA2 causes more vascular disruption than RWASA1 on resistant barley lines

Author:
M.A. Jimoh; C.E.J. Botha; O. Edwards
Source:
South African journal of botany 2011 v.77 no.3 pp. 755-766
ISSN:
0254-6299
Subject:
Agricultural Research Service; Diuraphis noxia; Hordeum vulgare; antibiotics; barley; biotypes; breeding; callose; cultivars; fluorescence; leaves; phloem; population size; transmission electron microscopy; xylem
Abstract:
... We investigated the comparative effects of the feeding damage caused by two Russian wheat aphid (RWA, Diuraphis noxia Kurdjumov) biotypes, RWASA1 and RWASA2, on leaves of three RWA-resistant barley (Hordeum vulgare L.) lines from the USDA-ARS, and used a South African non-resistant cultivar as control. The relationship between aphid breeding capacity and the structural damage inflicted by the aphi ...
DOI:
10.1016/j.sajb.2011.03.012

32. Analysis of genetic diversity and structure of some historic olive (Olea europaea L.) germplasm in the United States using microsatellite markers

Author:
Koehmstedt, A.M.; Aradhya, M.K.; Soleri, D.; Smith, J.L.; Polito, V.S.
Source:
Acta horticulturae 2012 v. no.948 pp. 159-168
ISSN:
0567-7572
Subject:
Agricultural Research Service; Olea europaea; alleles; arboreta; cluster analysis; cultivars; genetic techniques and protocols; genetic variation; germplasm; germplasm conservation; heterozygosity; loci; microsatellite repeats; nut crops; olives; Arizona; California; Mediterranean region
Abstract:
... Fifteen microsatellite simple-sequence repeat (SSR) loci were used to genotype 58 accessions of cultivated olive, Olea europaea L. ssp. europaea var. europaea, from two collections of 19th to 20th century plantings in Arizona and California, in order to examine genetic diversity and structure within and among collections. These collections are Lotusland Gardens in Santa Barbara, CA, and the Arbore ...
DOI:
10.17660/ActaHortic.2012.948.17

33. Association Mapping of Russian Wheat Aphid Resistance in Barley as a Method to Identify Diversity in the National Small Grains Collection

Author:
Lynn S. Dahleen; Phil Bregitzer; Dolores Mornhinweg; Eric W. Jackson
Source:
Crop science 2012 v.52 no.4 pp. 1651-1662
ISSN:
0011-183X
Subject:
Agricultural Research Service; Diuraphis noxia; Hordeum vulgare; barley; breeding lines; chlorosis; cultivars; domestication; germplasm; grain yield; haplotypes; leaf spot; leaves; loci; phenotypic variation
Abstract:
... Russian wheat aphid (RWA) (Diuraphis noxia Kurdjumov) infestations of barley (Hordeum vulgare L.) cause chlorotic leaf spotting and streaking and prevent unrolling of leaves, which traps spikes and reduces grain yield. Resistant accessions identified in the USDA-ARS National Small Grains Collection (NSGC) were used to develop adapted, resistant germplasm and cultivars. This study identified loci a ...
DOI:
10.2135/cropsci2011.09.0525

34. Breeding for Parthenocarpic Fruit Development in Blueberry

Author:
Mark K. Ehlenfeldt
Source:
International journal of fruit science 2012 v.12 no.1-3 pp. 261-268
ISSN:
1553-8621
Subject:
Agricultural Research Service; Vaccinium corymbosum; blueberries; breeding; cross pollination; cultivars; greenhouses; insect pollination; parthenocarpy
Abstract:
... The USDA-ARS breeding program has identified a recessively-controlled genetic variant in highbush blueberry (V. corymbosum L.) that results in parthenocarpic fruit development. Current studies are underway to refine our understanding of this variant, and to move this trait into desirable and useful genetic backgrounds. In rabbiteye blueberry (V. ashei Reade), a species with critical cross-pollinat ...
DOI:
10.1080/15538362.2011.623082

35. Effects of Planting Configuration and In-Row Plant Spacing on Photosynthetically Active Radiation Interception for Three Irrigated Potato Cultivars

Author:
David D. Tarkalson; Bradley A. King; David L. Bjorneberg; John P. Taberna Jr.
Source:
Potato research 2012 v.55 no.1 pp. 41-58
ISSN:
0014-3065
Subject:
Agricultural Research Service; Solanum tuberosum; bedding plants; canopy; crop yield; cultivars; developmental stages; leaf area; photosynthetically active radiation; planting; potatoes; silt; soil; spatial distribution; sprinkler irrigation; tubers
Abstract:
... Research studies have evaluated the production of potatoes (Solanum tuberosum L.) grown in conventional and bed planting configurations. However, intercepted photosynthetically active radiation (PAR) from these planting configurations has not been quantified. A study conducted in 2008 and 2009 quantified and compared the intercepted PAR from three planting configurations (four row conventional rid ...
DOI:
10.1007/s11540-011-9205-2

36. Identification of New Sources of High Levels of Resistance to Dwarf Bunt and Common Bunt among Winter Wheat Landraces in the USDA-ARS National Small Grains Collection

Author:
Blair J. Goates; Harold E. Bockelman
Source:
Crop science 2012 v.52 no.6 pp. 2595-2605
ISSN:
0011-183X
Subject:
Agricultural Research Service; Triticum aestivum; breeding programs; cultivars; disease resistance; genetic variation; introgression; landraces; parents; races; resistance genes; seed treatment; smut diseases; virulence; winter wheat
Abstract:
... Although seed treatments are available for control of common bunt and dwarf bunt of wheat (Triticum aestivum L. and other Triticum species), host resistance is an important part of cultivar development in many areas of the world. Few resistance genes are used, creating vulnerability to new pathogenic races. Thousands of landraces from the USDA National Small Grains Collection were screened for res ...
DOI:
10.2135/cropsci2012.01.0060

37. Induced polyploidy and mutagenesis of embryogenic cultures of ornamental ginger (Hedychium J. Koenig)

Author:
Sakhanokho, H.F.; Rajasekaran, K.; Tabanca, N.; Sampson, B.J.; Nyochembeng, L.M.; Pounders, C.T.; Wedge, D.E.; Islam-Faridi, N.; Spiers, J.M.
Source:
Acta horticulturae 2012 no.935 pp. -
ISSN:
0567-7572
Subject:
Agricultural Research Service; Hedychium; breeding methods; container-grown plants; cultivars; flowers; ginger; hybrids; micropropagation; mutagenesis; planting; polyploidy; sodium azide; tissue culture; Mississippi
Abstract:
... Hedychium J. Koenig is among the largest genera of Zingiberaceae. These plants are increasingly being used as ornamentals worldwide because of their diverse and showy, scented flowers. Hedychium plants are mainly planted in the landscape because they are generally too tall to be grown as potted plants. In 2004, a Hedychium breeding program was initiated at the USDA-ARS research station in Poplarvi ...

38. Microsatellite Markers: Valuable in Vaccinium L.

Author:
Nahla V. Bassil
Source:
International journal of fruit science 2012 v.12 no.1-3 pp. 288-293
ISSN:
1553-8621
Subject:
Agricultural Research Service; Vaccinium corymbosum; blueberries; chromosome mapping; cranberries; cultivars; diploidy; expressed sequence tags; genetic variation; genomics; germplasm; heterozygosity; microsatellite repeats; specialty crops; tetraploidy; wide hybridization; Oregon
Abstract:
... The United States Department of Agriculture, Agricultural Research Service, National Clonal Germplasm Repository, Corvallis, Oregon, maintains a collection of Vaccinium L. that contains >1,700 accessions representing 66 species from 33 countries. The mission of the National Clonal Germplasm Repository is to acquire, preserve, evaluate, document, and freely distribute crop germplasm. Microsatellite ...
DOI:
10.1080/15538362.2011.619438

39. Pea Germplasm with Partial Resistance to Sclerotinia sclerotiorum Extends the Time Required by the Pathogen to Infect Host Tissue

Author:
Lyndon D. Porter
Source:
Crop science 2012 v.52 no.3 pp. 1044-1050
ISSN:
0011-183X
Subject:
Agricultural Research Service; Pisum sativum; Sclerotinia sclerotiorum; cultivars; death; environmental factors; fungi; genotype; germplasm; introduced plants; pathogens; peas; plant tissues; relative humidity; reproduction; temperature
Abstract:
... White mold, caused by the fungus Sclerotinia sclerotiorum (Lib.) de Bary, can be a serious disease in pea (Pisum sativum L.). Currently there are no pea genotypes with complete resistance to this pathogen. The objective of this research was to identify pea germplasm with partial resistance to S. sclerotiorum, focusing on initial infection and severity as influenced by environment. Selected pea gen ...
DOI:
10.2135/cropsci2011.09.0479

40. Quince (Cydonia oblonga Mill.) center of origin provides sources of disease resistance

Author:
Postman, J.D.
Source:
Acta horticulturae 2012 v. no.948 pp. 229-234
ISSN:
0567-7572
Subject:
Agricultural Research Service; Cydonia oblonga; Diplocarpon mespili; Erwinia amylovora; Fabraea; Gymnosporangium; Malus; Podosphaera; Pyrus; apples; center of origin; clones; cultivars; disease resistance; dwarfing; environmental factors; fungi; fungicides; genes; genotype; germplasm; landraces; leaf spot; leaves; pathogens; pears; plant response; powdery mildew; quinces; rootstocks; trees; Middle East; Oregon; Turkmenistan; Ukraine
Abstract:
... Quince is a close relative of apples (Malus sp.) and pears (Pyrus sp.) in the Rosaceae family. It has been cultivated for thousands of years in central Asia and the Middle East for its fruit, and for hundreds of years as a dwarfing rootstock for pears. The USDA-ARS National Clonal Germplasm Repository in Corvallis, Oregon has assembled a diverse living Cydonia collection that includes wild collect ...
DOI:
10.17660/ActaHortic.2012.948.26

41. Ribes L. gene bank management in the United States

Author:
Barney, D.L.; Hummer, K.E.; Robertson, N.L.; Gilmore, B.S.
Source:
Acta horticulturae 2012 v. no.946 pp. 73-76
ISSN:
0567-7572
Subject:
Agricultural Research Service; Arabis; Cronartium ribicola; Podosphaera; Ribes; blister rust; cultivars; currants; disease resistance; gene banks; genetic variation; germplasm; gooseberries; information sources; laboratory techniques; microsatellite repeats; powdery mildew; seeds; tobacco; tomatoes; Alaska; Arctic region; Asia; Europe; Oregon; South America
Abstract:
... A world collection of Ribes species and cultivars is maintained by the U.S. Department of Agriculture, Agricultural Research Service, National Plant Germplasm System (NPGS). The NPGS is a cooperative effort by State, Federal, and private organizations to preserve plant genetic diversity by acquiring, preserving, evaluating, documenting, and distributing crop germplasm. The program provides scienti ...
DOI:
10.17660/ActaHortic.2012.946.8

42. SSR fingerprinting of black raspberry cultivars shows discrepancies in identification

Author:
Dossett, M.; Bassil, N.V.; Finn, C.E.
Source:
Acta horticulturae 2012 v. no.946 pp. 49-53
ISSN:
0567-7572
Subject:
Agricultural Research Service; DNA fingerprinting; Rubus occidentalis; breeding; clones; cultivars; farmers; genetic variation; genotype; germplasm; microsatellite repeats; plums; raspberries; seedlings; Oregon
Abstract:
... Breeding progress in black raspberry (Rubus occidentalis L.) has been limited by a lack of genetic diversity in elite germplasm. Black raspberry cultivars are noted for showing very few differences, and seedlings for a lack of segregation for important traits. Genetic fingerprinting using microsatellite, or simple sequence repeat (SSR) markers, can reliably identify unique clones and evaluate dive ...
DOI:
10.17660/ActaHortic.2012.946.4

43. Understanding Variation in Switchgrass Biomass Composition

Author:
M. R. Schmer; K. P. Vogel; R. B. Mitchell; B. S. Dien; H. G. Jung; M. D. Casler
Source:
CSA News Magazine 2012 v.57 no.3 pp. 14
ISSN:
2325-3584
Subject:
foods; enzymes; field experimentation; business planning; feedstocks; scientists; Panicum virgatum; petroleum; cell walls; glucose; industry; xylose; bioenergy; near-infrared spectroscopy; weather; forage; cell wall components; cultivars; equations; ethanol production; teams; biomass; ethanol; prediction; Agricultural Research Service; microorganisms; growing season; pentoses; researchers; United States
Abstract:
... Switchgrass is being developed as a cellulosic ethanol feedstock for the temperate regions of North America. Cellulosic ethanol sources, such as switchgrass, have the potential to displace a significant portion of current United States petroleum consumption. Cellulosic refineries using biochemical processing will convert biomass cell wall carbohydrates into simple sugars and microorganisms will th ...
Handle:
10113/571877

44. ‘Pearl’ Southern Highbush Blueberry

Author:
Stephen J. Stringer; Arlen D. Draper; James M. Spiers; Donna A. Marshall
Source:
International journal of fruit science 2012 v.12 no.1-3 pp. 246-248
ISSN:
1553-8621
Subject:
Agricultural Research Service; Vaccinium corymbosum; blueberries; cultivars; fresh market; fruit quality; growers; hybrids; ripening; Southeastern United States
Abstract:
... ‘Pearl’ is a new southern highbush blueberry (Vaccinium spp. hybrid) developed and released by the United States Department of Agriculture Agricultural Research Service. The new cultivar has several advantages for growers in the Southeastern U.S. over rabbiteye blueberry cultivars, the most widely grown type of blueberry in the region. Among these are an earlier ripening period, high yield potenti ...
DOI:
10.1080/15538362.2011.619437

45. Biotechnological advances in the genetic improvement of Prunus Domestica

Author:
Scorza, R.; Callahan, A.M.; Dardick, C.D.; Srinivasan, C.; DeJong, T.M.; Abbott, A.G.; Ravelonandro, M.
Source:
Acta horticulturae 2013 no.985 pp. 111-117
ISSN:
0567-7572
Subject:
Agricultural Research Service; European Union; Plum pox virus; Prunus domestica; breeding; climate change; cultivars; dormancy; flowering; fruit quality; fruiting; genetic engineering; genetic improvement; growers; juvenility; labor; pathogens; pests; plums; rootstocks; seedlings; transgenes; trees; Europe; United States
Abstract:
... Plum producers world-wide are facing multiple challenges including climate change, reductions in available labor, the need for reduced chemical inputs, the spread of native and exotic pests and pathogens, and consumer demands for improved fruit quality and health benefits. Meeting these challenges will require innovation in many areas of science and technology and especially in plum breeding. In a ...

46. Breeding Potential of Elite Pee Dee Germplasm in Upland Cotton Breeding Programs

Author:
B. T. Campbell; D. B. Weaver; R. Sharpe; J. Wu; D. C. Jones
Source:
Crop science 2013 v.53 no.3 pp. 894-905
ISSN:
0011-183X
Subject:
Agricultural Research Service; Gossypium hirsutum; agronomic traits; cotton; cultivars; fiber quality; genetic improvement; germplasm; hybrids; progeny
Abstract:
... Successful plant breeding programs begin with parental line selection. Effective parental line selection is facilitated when the breeding potential of candidate parental lines is known. Using topcross families involving germplasm from eight U.S. public cotton (Gossypium hirsutum L.) breeding programs, we evaluated the breeding potential of recently developed, elite Pee Dee germplasm. Based on pare ...
DOI:
10.2135/cropsci2012.09.0549

47. Cryopreservation and maintenance of hop material in the usda germplasm collection

Author:
Reed, B.M.; Hummer, K.E.
Source:
Acta horticulturae 2013 no.1010 pp. 191-197
ISSN:
0567-7572
Subject:
Agricultural Research Service; Humulus lupulus; cooling; cryopreservation; cultivars; germplasm; germplasm conservation; greenhouses; meristems; pollen; researchers; seeds; tissue culture; viruses; Colorado
Abstract:
... The National Clonal Germplasm Repository (NCGR-Corvallis) is responsible for conservation of the hop (Humulus lupulus L.) genetic resources for the US Department of Agriculture (USDA), Agricultural Research Service (ARS). The collection includes 675 accessions representing 7 Humulus taxa (species and subspecies) from 18 countries. This germplasm includes: wild collected seeds, virus and viroid tes ...

48. Evaluation of tomato accessions for flavour and flavour-contributing components

Author:
Dilip R. Panthee; Joanne A. Labate; Larry D. Robertson
Source:
Plant genetic resources 2013 v.11 no.2 pp. 106-113
ISSN:
1479-263X
Subject:
Agricultural Research Service; agronomic traits; chemical constituents of plants; cultivars; flavor; fruit quality; genetic background; odors; plant genetic resources; titratable acidity; tomatoes; total soluble solids
Abstract:
... Flavour is one of the most highly demanded consumer traits of tomato at present; poor flavour is one of the most commonly heard complaints associated with modern varieties of tomato. In order to combine flavour with other desirable fruit traits in improved cultivars, it is important to determine how much variability exists in the crucial compounds that contribute most to flavour. The objective of ...
DOI:
10.1017/S1479262112000421

49. Insect Resistance in Traditional and Heirloom Sweetpotato Varieties

Author:
Jackson D. Michael; Harrison Howard F.
Source:
Journal of economic entomology 2013 v.106 no.3 pp. 1456-1462
ISSN:
0022-0493
Subject:
Agricultural Research Service; Chaetocnema confinis; Cylas formicarius elegantulus; Diabrotica; Elateridae; Phyllophaga; Systena; beetle infestations; breeding programs; cultivars; field experimentation; genotype; germplasm; insect larvae; insect pests; insect resistance; roots; soil insects; sweet potatoes; South Carolina
Abstract:
... Fifty-nine sweetpotato cultivars, including 16 heirlooms, 11 near-heirlooms (developed in the 1960s and 1970s), 19 cultivars from the 1980s, and 13 modern varieties (since 1990), were evaluated for resistance to soil insects in field experiments during 2010–2011 at the U.S. Department of Agriculture-Agriculture Research Service, U.S. Vegetable Laboratory (USDA-ARS, USVL), Charleston, SC. These exp ...

50. Nuclear and chloroplast microsatellite markers to assess genetic diversity and evolution in hazelnut species, hybrids and cultivars

Author:
Nahla Bassil; Paolo Boccacci; Roberto Botta; Joseph Postman; Shawn Mehlenbacher
Source:
Genetic resources and crop evolution 2013 v.60 no.2 pp. 543-568
ISSN:
0925-9864
Subject:
Agricultural Research Service; Corylus; alleles; chloroplasts; cultivars; evolution; genetic variation; germplasm; glaciation; hazelnuts; heterozygosity; hybridization; hybrids; loci; microsatellite repeats; shrubs; trees; Asia; Europe; Oregon
Abstract:
... The US Department of Agriculture, Agricultural Research Service, National Clonal Germplasm Repository in Corvallis, Oregon, preserves more than 800 accessions of hazelnut (Corylus), including C. avellana cultivars and representatives of 10 other recognized shrub and tree species. Characterization and study of genetic diversity in this collection require cross-transferable markers, such as trinucle ...
DOI:
10.1007/s10722-012-9857-z