Gene action and heritability for photosynthetic activity in two wheat crosses

Gene action and heritability for photosynthetic activity were estimated from generation means in two wheat crosses during two stages (5; th; leaf and flag leaf between 2 and 5 days after anthesis). Six generations were available for each cross: parents (P₁ and P₂), F₁, F₂ and backcrosses (BC₁ and...

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Detalles Bibliográficos
Autor principal: Simón, María Rosa
Formato: Articulo
Lenguaje:Inglés
Publicado: 1994
Materias:
Ciencias Agrarias
Triticum aestivum
Wheat
Photosynthesis
Gene action
Heritability
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/131712
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-131712
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Agrarias
Triticum aestivum
Wheat
Photosynthesis
Gene action
Heritability
spellingShingle Ciencias Agrarias
Triticum aestivum
Wheat
Photosynthesis
Gene action
Heritability
Simón, María Rosa
Gene action and heritability for photosynthetic activity in two wheat crosses
topic_facet Ciencias Agrarias
Triticum aestivum
Wheat
Photosynthesis
Gene action
Heritability
description Gene action and heritability for photosynthetic activity were estimated from generation means in two wheat crosses during two stages (5; th; leaf and flag leaf between 2 and 5 days after anthesis). Six generations were available for each cross: parents (P₁ and P₂), F₁, F₂ and backcrosses (BC₁ and BC₂). Correlations between some morphophysiological characters and photosynthetic activity of the flag leaf was also determined. The joint scaling test described by Mather & Jinks was used to determine the gene action. It showed that them; [d]; [h]; [i], [l] (mean, additivity, dominance, additive x additive interallelic interaction effects, dominance x dominance interallelic interaction effects) model fits the two crosses at both measurement times. All the model genetic components were significant for the flag leaf, however for the 5; th; leaf only [h]; [i] and [l] were significant. The presence of additive and additive x additive effects suggested the possibility of selecting for this character using the flag leaf so as to obtain pure inbred lines. Dominance effects [h] were negative and dominance x dominance effects [l] were positive. Broad sense heritability values were medium to low. There were no correlations between the studied morphophysiological characters and the photosynthetic activity.
format Articulo
Articulo
author Simón, María Rosa
author_facet Simón, María Rosa
author_sort Simón, María Rosa
title Gene action and heritability for photosynthetic activity in two wheat crosses
title_short Gene action and heritability for photosynthetic activity in two wheat crosses
title_full Gene action and heritability for photosynthetic activity in two wheat crosses
title_fullStr Gene action and heritability for photosynthetic activity in two wheat crosses
title_full_unstemmed Gene action and heritability for photosynthetic activity in two wheat crosses
title_sort gene action and heritability for photosynthetic activity in two wheat crosses
publishDate 1994
url http://sedici.unlp.edu.ar/handle/10915/131712
work_keys_str_mv AT simonmariarosa geneactionandheritabilityforphotosyntheticactivityintwowheatcrosses
bdutipo_str Repositorios
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