Full TGIF Record # 289725
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DOI:10.1111/gfs.12252
Web URL(s):http://onlinelibrary.wiley.com/doi/10.1111/gfs.12252/full
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Publication Type:
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Refereed
Author(s):J√°uregui, J. M.; Michelini, D. F.; Agnusdei, M. G.; Baudracco, J.; Sevilla, G. H.; Chilibroste, P.; Lattanzi, F. A.
Author Affiliation:J√°uregui and Baudracco: Consejo Nacional de Investigaciones Cient√≠ficas y T√©cnicas (CONICET), Buenos Aires, Argentina and Facultad de Ciencias Agrarias, Universidad Nacional del Litoral, Esperanza (SF), Argentina; Michelini: Universidad de la Rep√ļblica, Centro Universitario Regi√≥n Litoral Norte, Salto, Uruguay; Agnusdei: Instituto Nacional de Tecnolog√≠a Agropecuaria, Balcarce, Argentina; Sevilla: Instituto Nacional de Tecnolog√≠a Agropecuaria, Concepci√≥n del Uruguay, Argentina; Chilibroste: Universidad de la Rep√ļblica, Estaci√≥n Experimental Dr. Mario A. Cassinoni, Paysand√ļ, Uruguay; Lattanzi: Instituto Nacional de Investigaci√≥n Agropecuaria (INIA), La Estanzuela, Uruguay
Title:Persistence of tall fescue in a subtropical environment: Tiller survival over summer in response to flowering control and nitrogen supply
Source:Grass and Forage Science. Vol. 72, No. 3, September 2017, p. 454-466.
# of Pages:13
Publishing Information:[Oxford, England, United Kingdom]: Blackwell Publishing Ltd.
Related Web URL:http://onlinelibrary.wiley.com/doi/10.1111/gfs.12252/abstract
    Last checked: 10/04/2017
    Notes: Abstract only
http://onlinelibrary.wiley.com/store/10.1111/gfs.12252/asset/supinfo/gfs12252-sup-0001-FigS1.pdf?v=1&s=f1976b571451f77c8295a44f8b818e962286aded
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    Notes: Supplementary graph
http://onlinelibrary.wiley.com/store/10.1111/gfs.12252/asset/supinfo/gfs12252-sup-0002-FigS2.pdf?v=1&s=f9dc39a3132a37c6615c7a816fb3c00dd4c936cf
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    Notes: Supplementary graphs
Keywords:TIC Keywords: Festuca arundinacea; Grazing; Growth analysis; Heat stress; Nitrogen fertilization; Tillers (vegetative)
Abstract/Contents:"Enhancing pasture persistence is crucial to achieve more sustainable grass-based animal production systems. Although it is known that persistence of perennial ryegrass is based on a high turnover of tillers during late spring and summer, little is known about other forage species, particularly in subtropical climates. To address this question, this study evaluated survival of grazed tall fescue tillers growing in a subtropical climate. We hypothesized that hard tactical grazing during winter to remove reproductive stems (designated as 'flowering control'), and nitrogen fertilization in spring, would both improve tiller survival over summer, and thus enhance tiller density. This was assessed in two experiments. In both experiments, few tillers appeared during late spring and summer and so tiller density depended on the dynamics of vegetative tillers present in the sward in spring. In Experiment 2, flowering control and nitrogen fertilization both enhanced the survival of that critical tiller cohort, but the effects were not additive. Responses were similar but not statistically significant in Expverall survival rates. Unlike grasses in temperate environments, persistence of tall fescue in this subtropical site appeared to follow a 'vegetative pathway'; i.e., new tillers were produced largely in autumn, from vegetative tillers that survived the summer."
Language:English
References:60
Note:Tables
Graphs
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Jauregui, J. M., D. F. Michelini, M. G. Agnusdei, J. Baudracco, G. H. Sevilla, P. Chilibroste, et al. 2017. Persistence of tall fescue in a subtropical environment: Tiller survival over summer in response to flowering control and nitrogen supply. Grass Forage Sci. 72(3):p. 454-466.
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DOI: 10.1111/gfs.12252
Web URL(s):
http://onlinelibrary.wiley.com/doi/10.1111/gfs.12252/full
    Last checked: 10/04/2017
    Access conditions: Item is within a limited-access website
http://onlinelibrary.wiley.com/doi/10.1111/gfs.12252/epdf
    Last checked: 10/04/2017
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
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