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

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.

HortScience ◽  
2005 ◽  
Vol 40 (2) ◽  
pp. 304-308 ◽  
Author(s):  
Amy F. Iezzoni

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.


2021 ◽  
pp. 1-16
Author(s):  
Hajer Al-Faham

How does surveillance shape political science research in the United States? In comparative and international politics, there is a rich literature concerning the conduct of research amid conditions of conflict and state repression. As this literature locates “the field” in distant contexts “over there,” the United States continues to be saturated with various forms of state control. What this portends for American politics research has thus far been examined by a limited selection of scholars. Expanding on their insights, I situate “the field” in the United States and examine surveillance of American Muslims, an understudied case of racialized state control. Drawing on qualitative data from a case study of sixty-nine interviews with Arab and Black American Muslims, I argue that surveillance operated as a two-stage political mechanism that mapped onto research methodologically and substantively. In the first stage, surveillance reconfigured the researcher-researchee dynamic, hindered recruitment and access, and limited data-collection. In the second stage, surveillance colored the self-perceptions, political attitudes, and civic engagement of respondents, thereby indicating a political socialization unfolding among Muslims. The implications of this study suggest that researchers can mitigate against some, but not all, of the challenges presented by surveillance and concomitant forms of state control.


2021 ◽  
Vol 5 ◽  
pp. 239920262110056
Author(s):  
John B Hertig ◽  
Shannon M James ◽  
Connor J Hummel ◽  
Matthew J Rubin

Background: An estimated 95% of all online pharmacies operate unlawfully. Illegal online pharmacies distribute substandard and falsified medical products that may result in patient harm and suboptimal treatment, leading to an overall mistrust of medications, healthcare providers, and health systems. As medication experts, pharmacists are trusted to guide patients in selection of safe and effective medication therapy. Objective: The objective of this study was to determine gaps in knowledge and recognition of the negative clinical and safety impacts associated with illegal Internet pharmacies by licensed pharmacists. Methods: A 37-question electronic survey was developed and distributed to pharmacists across the United States by email via a database from the American Pharmacists Association. Descriptive statistics was utilized to analyze data. Results: A total of 347 pharmacists from across the United States responded to at least one question in the survey. In all, 58% of pharmacists reported a lack of confidence in their ability to counsel patients on the identification of illegal pharmacy websites. Fewer than 60% of pharmacists were able to accurately identify the legitimacy of a webpage based on visual characteristics. In addition, 75% of pharmacists reported being unfamiliar with resources available to help consumers identify safe and legitimate online pharmacies. Conclusion: Integration of the topic into pharmacy education curricula, training on available resources, and additional research into the prevalence and impact of illegal pharmacy websites are necessary to ensure that pharmacists and other healthcare professionals are adequately prepared to protect their communities from the threat of illegal online pharmacies.


2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Francis P F Reay-Jones

Abstract The corn earworm, Helicoverpa zea (Boddie), is a common lepidopteran pest of corn (Zea mays L.) in the United States. This article provides an overview of the life history, ecology, plant injury, and management of H. zea in corn. Leaf injury by H. zea feeding can occur in vegetative stage corn, though this type of injury is rare. The most common type of injury is caused by larval feeding in ears. Because kernel injury is typically limited to the tip of the ear, H. zea is generally not considered an economic pest. The use of transgenic corn hybrids expressing insecticidal Cry proteins from Bacillus thuringiensis (Bt) Berliner can reduce injury from H. zea, though complete control is not achieved with most Bt traits. Resistance has been reported to several Bt toxins. Because H. zea is a major economic pest in cotton (Gossypium hirsutum L.) and because H. zea moths that developed on corn can migrate to cotton, selection pressure on H. zea in Bt corn has major implications for the pest status and injury to Bt cotton. Although the impact of H. zea on yield of field corn is generally negligible, the selection pressure exerted by Bt corn has led to management issues in cotton.


Crop Science ◽  
1994 ◽  
Vol 34 (1) ◽  
pp. 279-285 ◽  
Author(s):  
Noa Diwan ◽  
Gary R. Bauchan ◽  
Marla S. McIntosh

English Today ◽  
2018 ◽  
Vol 34 (4) ◽  
pp. 21-28
Author(s):  
Carmen Ebner

Having studied attitudes towards usage problems such as the notorious split infinitive or the ubiquitous literally in British English as part of my doctoral thesis, I was intrigued by the sheer lack of scientific studies investigating such attitudes. What was even more intriguing was to discover that the same field and the same usage problems seem to have received a different treatment in the United States of America. While my search for previously conducted usage attitude studies in Great Britain has largely remained fruitless, besides two notable exceptions which I will discuss in detail below (see Section 3), a similar search for American usage attitude studies resulted in a different picture. Considerably more such studies seem to have been conducted in the US than in Great Britain. On top of cultural and linguistic differences between these two nations, it seems as if they also hold different attitudes towards studying attitudes towards usage problems. Now the following question arises: why do we find such contradictory scientific traditions in these two countries? In this paper, I will provide an overview of a selection of American and British usage attitude studies. Taking into account differences between the American and British studies with regard to the number of usage problems studied, the populations surveyed and the methods applied, I will attempt to capture manifestations of two seemingly diverging attitudes towards the study of usage problems. By doing so, I will provide a possible explanation for the lack of attention being paid to usage attitudes in Great Britain.


Psychologia ◽  
2020 ◽  
Vol 14 (1) ◽  
pp. 41-46
Author(s):  
Celia Yaneth Quiroz Campas ◽  
Eyder Bolivar Mojica ◽  
Margarita Juárez Nájera ◽  
Jorge Hernández Valdés ◽  
Cruz García Lirios

Provisions for migration underlie asymmetric relations between sending and receiving countries, such as the cases of Mexico and the United States of America, although studies focus on stigma. The objective of this study was to establish the reliability and construct validity of an instrument that measures the phenomenon. A transversal and exploratory work was carried out with a selection of 300 students, considering their affiliation to a public university in a strategic alliance with multinationals for vocational training. A structure of four factors related to risk, utility, hyperopia and identity was observed, although the design of the research limited the results to the research scenario, suggesting the extension of the work towards negative dispositions such as exclusion, discrimination and the stigma. Keywords: Migration, Identity, Hyperopia, Helplessness, Reliability.


2021 ◽  
Author(s):  
Kim Turner

<div>Our main report, Good Ideas from Successful Cities: Municipal Leadership in Immigrant Integration, explores these themes through a selection of nearly 40 profiles of municipal practice and policies from cities across Canada, the U.S., Europe and Australasia. In this companion report, United States: Good Ideas from Successful Cities, we present an additional snapshot of municipal leadership and excellence in immigrant integration from cities in the United States. Each of these five city profiles includes a selection of related international city practices to encourage comparative perspective and enriched learning.</div>


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