A Core Collection for the United States Annual Medicago Germplasm Collection

Crop Science ◽  
1994 ◽  
Vol 34 (1) ◽  
pp. 279-285 ◽  
Author(s):  
Noa Diwan ◽  
Gary R. Bauchan ◽  
Marla S. McIntosh
Keyword(s):  
United States ◽  
Core Collection ◽  
Germplasm Collection ◽  
The United States ◽  
Annual Medicago

scholarly journals Variation in Bloom Time in a Sour Cherry Germplasm Collection

HortScience ◽  
1992 ◽  
Vol 27 (10) ◽  
pp. 1113-1114 ◽  
Author(s):  
Amy F. Iezzoni ◽  
Colleen A. Mulinix
Keyword(s):  
United States ◽  
Interspecific Hybrid ◽  
Selection Pressure ◽  
Germplasm Collection ◽  
Sour Cherry ◽  
The United States ◽  
Prunus Cerasus ◽  
Commercially Important ◽  
Cold Hardy ◽  
Selection Of

Bloom times were evaluated for seedlings from four full-sib and 14 open-pollinated families of sour cherry (Prunus cerasus L.). Time of anthesis for individual seedlings ranged over 17and 16-day periods in 1989 and 1990, respectively. In both years, most seedlings bloomed later than `Montmorency', the only commercially important sour cherry cultivar in the United States. `Pitic de Iasi', the parent of the latest-blooming family, is a natural interspecific hybrid between sour cherry and the cold-hardy Russian ground cherry (P. fruticosa Pall.). Hybridization between sour and ground cherry and intense selection pressure in the colder areas of the sour cherry habitat may have favored selection of the late-blooming character.

scholarly journals 259 Screening of Lespedeza germplasm for forage quality and bioactivity

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 90-90
Author(s):  
Thomas H Terrill ◽  
Breyanna Morning ◽  
Erica Courson ◽  
Bradley Morris ◽  
Harley Naumann ◽  
...  
Keyword(s):  
United States ◽  
Native Species ◽  
Plant Genetic Resources ◽  
Germplasm Collection ◽  
The United States ◽  
Neutral Detergent Fiber ◽  
Lespedeza Cuneata ◽  
Sericea Lespedeza ◽  
Freeze Dried

Abstract Interest in the condensed tannin-containing legume sericea lespedeza (Lespedeza cuneata) as a nutraceutical (bioactive) forage for livestock has been increasing in the United States but other Lespedeza species have not been adequately evaluated. A study was completed to determine the nutritional and bioactivity potential of Lespedeza species obtained from the USDA Plant Genetic Resources Conservation Unit in Griffin, GA. Accessions from 15 Lespedeza species were planted in small plots at Fort Valley State University in Fort Valley, GA. After establishment, forage was harvested, freeze-dried, ground and analyzed for neutral detergent fiber (NDF), acid detergent fiber (ADF), in vitro true digestibility (IVTD), total phenolics (TP), and protein precipitable phenolics (PPP). Species differences were significant (P < 0.01) for all parameters measured. Lespedeza cuneata accessions, including “AUGrazer,” the cultivar most commonly used as an anti-parasitic crop in the United States had NDF, ADF, and IVTD values of 35.7±0.4%, 26.8±0.4%, and 74.3±1.2%, while L. virginica, a native species, had 34.9±3.0%, 26.0±2.5%, and 74.9±4.2%, respectively. The L. cuneata accessions averaged 179.6±4.3 and 133.6±3.5 mg/g of forage material for TP and PPP, while L. virginica averaged 564.2±24.6 and 306.5±19.9 mg/g, respectively. Other species varied from 30.5±3.0 to 47.4±4.2% NDF, 22.9±1.6 to 36.4±3.6% ADF, 55.2±5.9 to 81.6±3.4% IVTD, and 107.7±17.4 to 283.5±34.7 and 55.2±14.0 to 139.4±28.1 mg/g of forage for TP and PPP, respectively. Based upon these results, Lespedeza species tested in this study, particularly L. virginica, have potential as nutraceutical forages for livestock production systems. As L. cuneata accessions established and grew much better than other Lespedeza species in this study, agronomic testing of this germplasm collection in other environments is warranted. In addition, determining potential anti-parasitic properties of these species using in vitro and in vivo testing would be beneficial.

Identification of Sweetpotato Germplasm Resistant to Pathotypically Distinct Isolates of Meloidogyne enterolobii from the Carolinas

Plant Disease ◽  
2021 ◽  
Author(s):  
William Rutter ◽  
Phil Wadl ◽  
John David Mueller ◽  
Paula Agudelo
Keyword(s):  
United States ◽  
Ipomoea Batatas ◽  
Germplasm Collection ◽  
Resistance Breeding ◽  
The United States ◽  
Root Knot Nematode ◽  
Breeding Programs ◽  
Nematode Reproduction ◽  
Pathogenic Variants ◽  
Meloidogyne Enterolobii

Meloidogyne enterolobii (syn. mayaguensis) is an emergent species of root-knot nematode that has become a serious threat to sweetpotato (Ipomoea batatas) production in the southeastern United States. The most popular sweetpotato cultivars grown in this region are highly susceptible to M. enterolobii. As a result, this pest has spread across most of the sweetpotato growing counties in the Carolinas, threatening the industry as well as other crops in the region. The development and release of new sweetpotato cultivars with resistance to M. enterolobii would help to manage and slow the spread of this pest. To support sweetpotato resistance breeding efforts, 93 accessions selected from the USDA germplasm collection and breeding programs in the United States were screened to identify 19 lines with strong resistance to M. enterolobii. The resistance in these accessions was tested against two M. enterolobii isolates that were collected from sweetpotato production fields in the Carolinas. These isolates were found to have distinct pathotypes, with galling and nematode reproduction differences observed on cotton as well as sweetpotato. This study is the first report of intraspecific pathotypic variation in M. enterolobii and identifies sweetpotato germplasm with resistance against both pathogenic variants of this nematode.

scholarly journals Bibliometric analysis of publications on inclusive education from the Web of Science Core Collection published from 1992 to 2020

2021 ◽  
Vol 8 (1) ◽  
pp. 79-84
Author(s):  
Jia-Fen Wu ◽  
Xiaoxiao Lin
Keyword(s):  
United States ◽  
Inclusive Education ◽  
Core Collection ◽  
Web Of Science ◽  
Citation Index ◽  
The United States ◽  
Teachers Attitudes ◽  
The Web ◽  
Highly Cited Articles ◽  
Highly Cited

Purpose: This study analyzed the bibliometric characteristics of publications on inclusive education in the Social Science Citation Index and Science Citation Index Expanded in the Web of Science Core Collection from 1992 to 2020.Methods: Terms related to “inclusive education” and “inclusion of education” were used as keywords to search for journal articles on July 3, 2020.Results: There were 1,786 articles, representing 3,376 authors, in the 345 journals scanned. The United States, United Kingdom, and Australia were the three leading countries/regions in this field. In the top 12 countries, the top 15 institutions and the top 10 most-cited journals were identified by either the number of publications or the number of total citations. Core themes from the 30 most highly-cited articles were teachers’ attitudes, teachers’ self-efficacy, and the effects of inclusive education. Teachers included both pre-service and in-service teachers; students represented those with and without special educational needs.Conclusion: The results indicate that the United States, United Kingdom, and Australia dominated inclusive education research, originating most of the highly-cited articles, having more prolific authors, and presenting the most-cited institutions. Furthermore, three emerging core themes from the 30 most highly-cited articles were teachers’ attitudes, teachers’ self-efficacy, and the effects of inclusive education. Frontline teachers are recommended to submit manuscripts about their teaching experiences to the most-cited journals, which have a large readership. To measure the effects of inclusive education, it is essential to formulate reliable, valid, and culture-free research instruments for future studies.

scholarly journals Genotyping of the Valencia Peanut Core Collection with a Molecular Marker Associated with Sclerotinia blight Resistance

2018 ◽  
Vol 45 (1) ◽  
pp. 12-18 ◽  
Author(s):  
Kelly D. Chamberlin ◽  
Naveen Puppala
Keyword(s):  
Core Collection ◽  
Germplasm Collection ◽  
Field Evaluation ◽  
The United States ◽  
Blight Resistance ◽  
Organic Systems ◽  
Legume Crop ◽  
Sclerotinia Blight ◽  
Cultivated Peanut ◽  
Disease Pressure

ABSTRACT Cultivated peanut, the second most economically important legume crop throughout the United States and the third most important oilseed in the world, is consistently threatened by various diseases and pests. Sclerotinia blight, (causal agents Sclerotinia sclerotiorum (S. sclerotiorum) and Sclerotinia minor Jagger (S. minor))is a major threat to peanut production in the Southwestern U.S., Virginia, and North Carolina and can reduce yield by up to 50% in severely infested fields. S. sclerotiorum has now been reported in areas of eastern New Mexico and west Texas where all U.S. grown Valencia peanuts are produced, commonly in organic cropping environments. Host plant resistance provides the most effective solution to managing Sclerotinia blight, especially in organic systems where pesticide use is not an option for disease control. To date, no Valencia cultivars with Sclerotinia blight resistance have been released. In this study, the Valencia peanut core germplasm collection was genotyped with a Simple Sequence Repeat (SSR) marker associated with Sclerotinia blight resistance in order to identify potential germplasm for use in breeding to develop Valencia peanut cultivars resistant to the disease. Thirty accessions from the Valencia peanut core collection have profiles consistent with other genotypes that exhibit less that 5% incidence of Sclerotinia blight under heavy disease pressure. The identified accessions, after field evaluation, may serve as potential sources of Sclerotinia blight resistance in Valencia peanut breeding programs.

scholarly journals Taxonomic Problems in Cultivated Liriopogons

1993 ◽  
Vol 3 (2) ◽  
pp. 146-150 ◽  
Author(s):  
Paul R. Fantz
Keyword(s):  
United States ◽  
Germplasm Collection ◽  
Taxonomic Revision ◽  
The United States ◽  
Landscape Plants

Liriopogons (Liriope, Ophiopogon) are versatile landscape plants with a complexity of taxonomic problems. A taxonomic revision of liriopogons cultivated in the United States is needed; one that includes an inventory of taxa, quantitative descriptions of species and cultivars, keys and other aids for segregation and identification of taxa, documentation of taxa with vouchers deposited in herbaria, and establishment of a living germplasm collection that can serve as a standard for the nursery/landscape industries.

scholarly journals Acquiring Cherry Germplasm from Central and Eastern Europe

HortScience ◽  
2005 ◽  
Vol 40 (2) ◽  
pp. 304-308 ◽  
Author(s):  
Amy F. Iezzoni
Keyword(s):  
United States ◽  
Eastern Europe ◽  
Central And Eastern Europe ◽  
Sweet Cherry ◽  
Germplasm Collection ◽  
Sour Cherry ◽  
The United States ◽  
Prunus Cerasus ◽  
Commercial Success ◽  
The U.S

The sour cherry (Prunus cerasus L.) industry in the United States is a monoculture of a 400-year-old cultivar from France named `Montmorency'. To provide a solid germplasm base to breed alternatives to `Montmorency', cherry germplasm was systematically collected over a 15-year period from its ancestral home in Central and Eastern Europe and introduced to the U.S. The strategy of germplasm collection using pollen, seed and budwood importation of highly quarantined species is discussed. Germplasm resulting from this effort is highlighted as well as an example of commercial success. Finally, the “recycling” of this immense germplasm collection to search for dwarfing precocious rootstocks for sweet cherry is described.

scholarly journals “Researching the Research” in Prostate Cancer: A Comparative Bibliometric Analysis of the Top 100 Cited Articles in the Field of Prostate Cancer

2017 ◽  
Vol 11 (1) ◽  
pp. 26-35 ◽  
Author(s):  
Ahmed Adam ◽  
Reuben Ras ◽  
Amit S. Bhattu ◽  
Avi Raman ◽  
Marlon Perera
Keyword(s):  
Prostate Cancer ◽  
United States ◽  
Gross Domestic Product ◽  
Bibliometric Analysis ◽  
Core Collection ◽  
Web Of Science ◽  
The United States ◽  
Korean Journal ◽  
Comprehensive Search ◽  
The Web

Background: To perform the first comparative bibliometric analysis of the “Top 100 (T100) cited articles in prostate cancer (PCa)”. Materials and Methods: A comprehensive search using the Web of Science Database (v 5.21) covering the Web of Science™ Core Collection, BIOSIS Previews, Central Contents Connect, KCI-Korean Journal Database, MEDLINE, SciELO Index (February 2016) was performed, for all articles relevant to PCa. Results: The T100 were cited 582 to 3,387 times, and were published from 1966 to 2012. The top 3 subcategories associated with PCa included: genetics/biomarkers (n = 34), management (n = 25), and physiology (n = 11). T100 contributions from USA (n = 86), were most prominent. If the regional citation was corrected for percentage on research (citation record/percentage gross domestic product on research) a variation in the ranking was noted. Conclusion: The first bibliometric analysis in the field of PCa is presented. Regions that predominate the T100, include the United States and Europe. Articles published in higher impact factor journals, in English medium and content related to PCa research associated with genetics/bio-markers have the highest citation potential.

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