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dc.contributor.author
Gerde, Jose Arnaldo
dc.contributor.author
Tamagno, Santiago
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Di Paola, Juan C.
dc.contributor.author
Borras, Lucas
dc.date.available
2018-07-20T15:06:12Z
dc.date.issued
2016-05
dc.identifier.citation
Gerde, Jose Arnaldo; Tamagno, Santiago; Di Paola, Juan C.; Borras, Lucas; Genotype and nitrogen effects over maize kernel hardness and endosperm zein profiles; Crop Science Society of America; Crop Science; 56; 3; 5-2016; 1225-1233
dc.identifier.issn
0011-183X
dc.identifier.uri
http://hdl.handle.net/11336/52718
dc.description.abstract
Maize (Zea mays L.) kernel hardness is of utmost importance for dry-milling processors. Zeins, maize prolamins, are known to be key proteins affecting this trait. We investigated the response of kernel zein profiles to N fertilization in maize hybrids with contrasting kernel hardness (measured as test weight, vitreousness, kernel density, and floaters percentage). A field experiment was done during two seasons, with three N fertilization treatments and four commercial hybrids with different hardness (two flint and two dent kernel types). We also measured yield, kernel protein concentration, and zein profiles (Z2, or g and β, and Z1, or a and d). Flint kernel type always yielded less and showed higher kernel hardness indicators when compared with dents (P < 0.01). N fertilization helped increase yield and kernel hardness in both kernel types. Flint kernel type had consistently more Z2 than dents, while only in 1 yr Z1 was higher in flints. Dent kernel type had a Z1/Z2 ratio similar to or higher than flints. Increasing N resulted in increased concentration of both zein types, but the effect was more pronounced on Z1. Significant correlations were observed between the different zein types (Z1 and Z2) and hardness indicators and total protein concentration, but Z2 showed the highest correlations with all kernel hardness traits. Our results expand previous knowledge on genotype and N fertilization effects over zein profiles and their involvement in kernel physical characteristics relevant for dry milling.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Crop Science Society of America
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Zea Mays L.
dc.subject
Kernel Quality
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Zein Profile
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Kernel Hardness
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Flint
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Dent
dc.subject.classification
Agricultura
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Agricultura, Silvicultura y Pesca
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CIENCIAS AGRÍCOLAS
dc.title
Genotype and nitrogen effects over maize kernel hardness and endosperm zein profiles
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-07-18T20:44:56Z
dc.journal.volume
56
dc.journal.number
3
dc.journal.pagination
1225-1233
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Baltimore
dc.description.fil
Fil: Gerde, Jose Arnaldo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Rosario. Facultad de Ciencias Agrarias; Argentina
dc.description.fil
Fil: Tamagno, Santiago. Universidad Nacional de Rosario. Facultad de Ciencias Agrarias; Argentina
dc.description.fil
Fil: Di Paola, Juan C.. Cotecna Inspección Argentina S.A.; Argentina
dc.description.fil
Fil: Borras, Lucas. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Rosario. Facultad de Ciencias Agrarias; Argentina
dc.journal.title
Crop Science
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.2135/cropsci2015.08.0526
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