scholarly journals Caracterización fenotípica de genotipos de dos poblaciones naturales de Sorghastrum pellitum (Poaceae) del sudeste bonaerense

Author(s):  
María Lis Echeverría ◽  
Gabriela Agustina Leofanti ◽  
Gisele Elizabeth Sanchez ◽  
María de las Mercedes Echeverría
Keyword(s):  

Introducción y objetivos: Sorghastrum pellitum es una Gramínea nativa de Sudamérica de gran potencial ornamental. Debido a la demanda de nuevas especies nativas por el mercado floricultor, resulta importante conocer si las plantas de esta especie prosperan en condiciones de cultivo y si presentan variabilidad para los atributos vegetativos y/o reproductivos, que posibiliten la selección de genotipos para su eventual incorporación en el mercado. El objetivo de este trabajo fue caracterizar genotipos de dos poblaciones de S. pellitum provenientes de áreas serranas del sudeste del Sistema Serrano de Tandilia (Buenos Aires, Argentina). M&M: Se utilizaron seis genotipos de cada población a partir de los cuales se obtuvieron clones que se dispusieron en macetas al aire libre en Balcarce (Buenos Aires, Argentina), siguiendo un DBCA (n=3). En dos estaciones de crecimiento sucesivas se evaluaron variables relacionadas a la supervivencia al trasplante, a la morfología y a la fenología. Resultados: Se registró variabilidad intra- e inter-poblacional en la supervivencia al trasplante, así como en caracteres morfológicos, duración de las etapas fenológicas y épocas de floración. Conclusiones: La capacidad de implantación bajo cultivo y la variabilidad detectada, sugieren que esta especie podría ser incluida en programas de mejoramiento genético, para la obtención de cultivares y posterior uso en planteos paisajísticos. Por otra parte, las diferencias encontradas entre lo registrado en este trabajo y la bibliografía, ponen en evidencia que para realizar descripciones taxonómicas de S. pellitum es necesario analizar un gran número de ejemplares, provenientes de las distintas áreas de su distribución, así como considerar la existencia de híbridos interespecíficos.  

1982 ◽  
Vol 99 ◽  
pp. 605-613
Author(s):  
P. S. Conti

Conti: One of the main conclusions of the Wolf-Rayet symposium in Buenos Aires was that Wolf-Rayet stars are evolutionary products of massive objects. Some questions:–Do hot helium-rich stars, that are not Wolf-Rayet stars, exist?–What about the stability of helium rich stars of large mass? We know a helium rich star of ∼40 MO. Has the stability something to do with the wind?–Ring nebulae and bubbles : this seems to be a much more common phenomenon than we thought of some years age.–What is the origin of the subtypes? This is important to find a possible matching of scenarios to subtypes.


1998 ◽  
Vol 26 (152) ◽  
pp. 576
Author(s):  
Oscar H. del Brutto Perrone ◽  
José Antonio Bueri ◽  
Antonio Culebras ◽  
Jordi Matías-Guiu Guía ◽  
Marco Tulio Medina Hernández ◽  
...  
Keyword(s):  

2018 ◽  
Vol 36 (2) ◽  
pp. 173-197
Author(s):  
Juliet McMains

This paper interrogates the history of same-sex dancing among women in Buenos Aires' tango scene, focusing on its increasing visibility since 2005. Two overlapping communities of women are invoked. Queer tangueras are queer-identified female tango dancers and their allies who dance tango in a way that attempts to de-link tango's two roles from gender. Rebellious wallflowers are women who practice, teach, perform, and dance with other women in predominantly straight environments. It is argued that the growing acceptance of same-sex dancing in Argentina is due to the confluence of four developments: 1) the rise of tango commerce, 2) innovations of tango nuevo, 3) changing laws and social norms around lesbian, gay, bisexual, and transgender rights, and 4) synergy between queer tango dancers and heterosexual women who are frustrated by the limits of tango's gender matrix. The author advocates for increased alliances between rebellious wallflowers and queer tangueras, who are often segregated from each other in Buenos Aires' commercial tango industry.


2017 ◽  
Vol 12 (2) ◽  
pp. 198-225
Author(s):  
Patricia Novillo-Corvalán

This article positions Pablo Neruda's poetry collection Residence on Earth I (written between 1925–1931 and published in 1933) as a ‘text in transit’ that allows us to trace the development of transnational modernist networks through the text's protracted physical journey from British colonial Ceylon (now Sri Lanka) to Madrid, and from José Ortega y Gasset's Revista de Occidente (The Western Review) to T. S. Eliot's The Criterion. By mapping the text's diasporic movement, I seek to reinterpret its complex composition process as part of an anti-imperialist commitment that proposes a form of aesthetic solidarity with artistic modernism in Ceylon, on the one hand, and as a vehicle through which to interrogate the reception and categorisation of Latin American writers and their cultural institutions in a British periodical such as The Criterion, on the other. I conclude with an examination of Neruda's idiosyncratic Spanish translation of Joyce's Chamber Music, which was published in the Buenos Aires little magazine Poesía in 1933, positing that this translation exercise takes to further lengths his decolonising views by giving new momentum to the long-standing question of Hiberno-Latin American relations.


Moreana ◽  
2005 ◽  
Vol 42 (Number 164) (4) ◽  
pp. 187-206
Author(s):  
Clare M. Murphy

The Thomas More Society of Buenos Aires begins or ends almost all its events by reciting in both English and Spanish a prayer written by More in the margins of his Book of Hours probably while he was a prisoner in the Tower of London. After a short history of what is called Thomas More’s Prayer Book, the author studies the prayer as a poem written in the form of a psalm according to the structure of Hebrew poetry, and looks at the poem’s content as a psalm of lament.


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