Size and shape variables of wheat grains and embryos: analyses and suggestions

The aims of this work were to discriminate among a group of variables of size and shape of wheat grains and embryos, some of direct measurement or primary variables (VP) and others derived from them or secondary variables (VS), those which were most adequate to describe these two characteristics, th...

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Autores principales: Manfreda, Vilma Teresa, Acosta, María Cecilia
Formato: Artículo revista
Lenguaje:Español
Publicado: Facultad de Ciencias Agrarias-UNCuyo 2015
Materias:
Acceso en línea:https://revistas.uncu.edu.ar/ojs3/index.php/RFCA/article/view/3271
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id I11-R107article-3271
record_format ojs
institution Universidad Nacional de Cuyo
institution_str I-11
repository_str R-107
container_title_str Revista de la Facultad de Ciencias Agrarias UNCuyo
language Español
format Artículo revista
topic Triticum aestivum
tamaño de embriones
forma de embriones
tamaño de granos
forma de granos
Triticum aestivum
embryo size
embryo shape
grain size
grain shape
spellingShingle Triticum aestivum
tamaño de embriones
forma de embriones
tamaño de granos
forma de granos
Triticum aestivum
embryo size
embryo shape
grain size
grain shape
Manfreda, Vilma Teresa
Acosta, María Cecilia
Size and shape variables of wheat grains and embryos: analyses and suggestions
topic_facet Triticum aestivum
tamaño de embriones
forma de embriones
tamaño de granos
forma de granos
Triticum aestivum
embryo size
embryo shape
grain size
grain shape
author Manfreda, Vilma Teresa
Acosta, María Cecilia
author_facet Manfreda, Vilma Teresa
Acosta, María Cecilia
author_sort Manfreda, Vilma Teresa
title Size and shape variables of wheat grains and embryos: analyses and suggestions
title_short Size and shape variables of wheat grains and embryos: analyses and suggestions
title_full Size and shape variables of wheat grains and embryos: analyses and suggestions
title_fullStr Size and shape variables of wheat grains and embryos: analyses and suggestions
title_full_unstemmed Size and shape variables of wheat grains and embryos: analyses and suggestions
title_sort size and shape variables of wheat grains and embryos: analyses and suggestions
description The aims of this work were to discriminate among a group of variables of size and shape of wheat grains and embryos, some of direct measurement or primary variables (VP) and others derived from them or secondary variables (VS), those which were most adequate to describe these two characteristics, those equivalent or redundant, and to improve or propose new variables. Grains of a wide size range of two wheat cultivars, which visually differ in shape, were studied. The grains were produced in a three-year field experiment. The first axis (67.77% of the variance) obtained by Principal Component Analysis was associated with VP and VS of both grain and embryo size, while second axis (16.73% of the variance) was associated with VS of shape. Some variables, such as embryos Length and Form-density factor, presented mixed or unexpected associations. It is suggested a modified Form-density factor (Ffdm) which showed a low number of significant correlations with size VP. Also, it was possible to propose two new variables: one that evaluates the shape of grains (Desf AN) and the other, the relative embryo-grain size (Le/Lg). Both variables could differentiate between cultivars, were not affected by production year, and showed few significant correlations with VP.
publisher Facultad de Ciencias Agrarias-UNCuyo
publishDate 2015
url https://revistas.uncu.edu.ar/ojs3/index.php/RFCA/article/view/3271
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