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dc.contributor.author
Entio, Lisandro Jose  
dc.contributor.author
Mujica, Maria de la Merced  
dc.contributor.author
Busso, Carlos Alberto  
dc.contributor.author
Torres, Yanina Alejandra  
dc.date.available
2021-07-03T02:33:16Z  
dc.date.issued
2021-05  
dc.identifier.citation
Entio, Lisandro Jose; Mujica, Maria de la Merced; Busso, Carlos Alberto; Torres, Yanina Alejandra; Reproductive traits in four spontaneous Pappophorum vaginatum populations in arid Argentina; Elsevier Masson; Acta Oecologica; 110; 5-2021; 1-10; 103675  
dc.identifier.issn
1146-609X  
dc.identifier.uri
http://hdl.handle.net/11336/135457  
dc.description.abstract
Arid zones, where native rangelands are common, are essentials for millions of people livelihood. These areas support 50% of the world's livestock and are where 44% of the world's food is grown. In rangelands of Central Argentina, Pappophorum vaginatum is basically the unique, warm-season perennial grass species palatable to grazing livestock. Our major objective was to determine variability in reproductive characteristics among four spontaneous, overgrazed populations (i.e., P1, P2, P3, P4) of that species to identify promissory materials for domestication. Studies were conducted during three consecutive growing seasons within the southwestern part of the Phytogeographical Province of the Monte, in southwestern Buenos Aires, Argentina. Measured reproductive characteristics were related to flowering initiation, seed production and natural reseeding potential. Significant differences were found for flowering initiation and natural reseeding potential, but not for viable anthecia per plant among the four populations of P. vaginatum. This species fructified from the beginning to the end of the studied growing seasons with a great anthecia production per plant. The light weight of these anthecia and their awns would favor a great wind dispersal and most likely the establishment of new seedlings of P. vaginatum. This suggests that sexual reproduction might have a relatively greater importance than asexual reproduction (i.e., tillering) in the persistence of the overgrazed P. vaginatum in the plant communities of the studied region. Selection of plant materials with a late flowering initiation will allow to extend the forage production of a better quality. The variability among and within populations found on this study support the idea that would be promissory to start selection programs to obtain improved germplasm to reincorporate to grasslands of the south of the Phytogeographical Region of the Monte (Argentina) not only to increase livestock production but to recover and maintain biodiversity.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Elsevier Masson  
dc.rights
info:eu-repo/semantics/restrictedAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
ARGENTINA  
dc.subject
DEVELOPMENTAL MORPHOLOGY STAGES  
dc.subject
PAPPOPHORUM VAGINATUM  
dc.subject
REPRODUCTIVE TRAITS  
dc.subject.classification
Agronomía, reproducción y protección de plantas  
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Agricultura, Silvicultura y Pesca  
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CIENCIAS AGRÍCOLAS  
dc.title
Reproductive traits in four spontaneous Pappophorum vaginatum populations in arid Argentina  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2021-06-10T19:21:12Z  
dc.journal.volume
110  
dc.journal.pagination
1-10; 103675  
dc.journal.pais
Francia  
dc.journal.ciudad
París  
dc.description.fil
Fil: Entio, Lisandro Jose. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales; Argentina  
dc.description.fil
Fil: Mujica, Maria de la Merced. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales; Argentina  
dc.description.fil
Fil: Busso, Carlos Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina. Universidad Nacional del Sur. Departamento de Agronomía. Laboratorio de Ecología; Argentina  
dc.description.fil
Fil: Torres, Yanina Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina. Universidad Nacional del Sur. Departamento de Agronomía. Laboratorio de Ecología; Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina  
dc.journal.title
Acta Oecologica  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S1146609X20301673  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.actao.2020.103675