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dc.contributor.author
Acreche, Martin Moises
dc.contributor.author
Sáez, Julio Víctor
dc.contributor.author
Chalco Vera, Jorge Elías
dc.date.available
2017-10-11T21:18:26Z
dc.date.issued
2015-03
dc.identifier.citation
Acreche, Martin Moises; Sáez, Julio Víctor; Chalco Vera, Jorge Elías; Physiological bases of genetic gains in sugarcane yield in Argentina; Elsevier Science; Field Crops Research; 175; 3-2015; 80-86
dc.identifier.issn
0378-4290
dc.identifier.uri
http://hdl.handle.net/11336/26466
dc.description.abstract
Breeding and management efforts during the 20th century have increased sugar yield in almost all sugarcane areas worldwide. However, a close analysis of the trends during the last decades reveals that the rate of increase in sugar yield has been actually slowing down since the 1980s. An experiment was conducted to compare sugarcane varieties representing different eras of genetic improvement in Argentina (one widely grown self-pollination variety, 11 released sugarcane hybrids and one advanced breeding hybrid) during the 2010/11, 2011/12 and 2012/13 growing seasons under rainfed field conditions in Tucumán, the main sugarcane area of Argentina. The aim of the experiment was to quantify the achievements in sugarcane breeding since 1940 in Tucumán, by identifying the main crop physiological bases responsible for yield increases. Genetic gains for sugar yield were 0.08 and 0.14 Mg ha−1 y−1 for plant and ratoon cane, respectively. There was a linear increase in sugar yield, cane yield, sugar content and average stem weight with the year of release of the varieties throughout the period from 1940 to 2010. The increase in sugar yield was linearly and positively related to cane yield, sugar content and average stem weight, whereas the increase in cane yield was associated to average stem weight and not to the number of stems. Breeding also increased the total above ground dry biomass and the dry stem weight. However, the partitioning of total above ground dry biomass to stems or to sugar were not increased by breeding. These findings reveal that the varieties continuously released by Argentine sugarcane breeding programs have not reached a “plateau” in sugar yield.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
Sugar Yield
dc.subject
Cane Yield
dc.subject
Average Stem Yield
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Number of Stems
dc.title
Physiological bases of genetic gains in sugarcane yield in 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
2016-11-17T16:27:22Z
dc.journal.volume
175
dc.journal.pagination
80-86
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Acreche, Martin Moises. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Salta-Jujuy. Estación Experimental Agropecuaria Salta; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Sáez, Julio Víctor. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Tucuman-santiago del Estero. Estación Experimental Agropecuaria Famaillá; Argentina
dc.description.fil
Fil: Chalco Vera, Jorge Elías. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Tucuman-santiago del Estero. Estación Experimental Agropecuaria Famaillá; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.journal.title
Field Crops Research
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.fcr.2015.02.002
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0378429015000441
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