Stability and breeding potential of tomato hybrids

ABSTRACT Commercial tomato (Solanum lycopersicum L.) hybrids can be a good germplasm for obtaining new tomato inbred lines. The present study was aimed to investigate the stability of commercial F1 hybrids under climatic conditions of highlands, to estimate genetic parameters, and evaluate the breed...

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Autores principales: Hernández-Leal,Enrique, Lobato-Ortiz,Ricardo, García-Zavala,J. Jesús, Hernández-Bautista,Aurelio, Reyes-López,Delfino, Bonilla-Barrientos,Olga
Lenguaje:English
Publicado: Instituto de Investigaciones Agropecuarias, INIA 2019
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Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392019000200181
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spelling oai:scielo:S0718-583920190002001812019-05-14Stability and breeding potential of tomato hybridsHernández-Leal,EnriqueLobato-Ortiz,RicardoGarcía-Zavala,J. JesúsHernández-Bautista,AurelioReyes-López,DelfinoBonilla-Barrientos,Olga Genetic gain heritability Solanum lycopersicum stability tomato breeding. ABSTRACT Commercial tomato (Solanum lycopersicum L.) hybrids can be a good germplasm for obtaining new tomato inbred lines. The present study was aimed to investigate the stability of commercial F1 hybrids under climatic conditions of highlands, to estimate genetic parameters, and evaluate the breeding potential of F1 hybrids based on the agronomic performance of its F3 progeny. We employed a breeding scheme based on pedigree selection for the obtainment of 49 F3 families. Significant differences were found in most of the traits evaluated in both F1 and F3 generations, while in the F2 population only one variable showed significant differences. Heritability ranged from 0.07 to 0.29 for F1, and from 0.16 to 0.45 for F3. Most of the F1 hybrids exhibited values of stability across seasons in at least one trait. However, ‘Loreto’ and ‘Reserva’ only exhibited a high stability for yield. Genetic gains ranged from -8.40 to 72.95. Yield per plant was the traits with the highest gain. Based on genetic gains obtained by the F3 progeny, we concluded that ‘Cid’, ‘Espartaco’ and ‘Loreto’ have a high breeding potential for yield and other traits, which could be exploited by public tomato breeding programs.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.79 n.2 20192019-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392019000200181en10.4067/S0718-58392019000200181
institution Scielo Chile
collection Scielo Chile
language English
topic Genetic gain
heritability
Solanum lycopersicum
stability
tomato breeding.
spellingShingle Genetic gain
heritability
Solanum lycopersicum
stability
tomato breeding.
Hernández-Leal,Enrique
Lobato-Ortiz,Ricardo
García-Zavala,J. Jesús
Hernández-Bautista,Aurelio
Reyes-López,Delfino
Bonilla-Barrientos,Olga
Stability and breeding potential of tomato hybrids
description ABSTRACT Commercial tomato (Solanum lycopersicum L.) hybrids can be a good germplasm for obtaining new tomato inbred lines. The present study was aimed to investigate the stability of commercial F1 hybrids under climatic conditions of highlands, to estimate genetic parameters, and evaluate the breeding potential of F1 hybrids based on the agronomic performance of its F3 progeny. We employed a breeding scheme based on pedigree selection for the obtainment of 49 F3 families. Significant differences were found in most of the traits evaluated in both F1 and F3 generations, while in the F2 population only one variable showed significant differences. Heritability ranged from 0.07 to 0.29 for F1, and from 0.16 to 0.45 for F3. Most of the F1 hybrids exhibited values of stability across seasons in at least one trait. However, ‘Loreto’ and ‘Reserva’ only exhibited a high stability for yield. Genetic gains ranged from -8.40 to 72.95. Yield per plant was the traits with the highest gain. Based on genetic gains obtained by the F3 progeny, we concluded that ‘Cid’, ‘Espartaco’ and ‘Loreto’ have a high breeding potential for yield and other traits, which could be exploited by public tomato breeding programs.
author Hernández-Leal,Enrique
Lobato-Ortiz,Ricardo
García-Zavala,J. Jesús
Hernández-Bautista,Aurelio
Reyes-López,Delfino
Bonilla-Barrientos,Olga
author_facet Hernández-Leal,Enrique
Lobato-Ortiz,Ricardo
García-Zavala,J. Jesús
Hernández-Bautista,Aurelio
Reyes-López,Delfino
Bonilla-Barrientos,Olga
author_sort Hernández-Leal,Enrique
title Stability and breeding potential of tomato hybrids
title_short Stability and breeding potential of tomato hybrids
title_full Stability and breeding potential of tomato hybrids
title_fullStr Stability and breeding potential of tomato hybrids
title_full_unstemmed Stability and breeding potential of tomato hybrids
title_sort stability and breeding potential of tomato hybrids
publisher Instituto de Investigaciones Agropecuarias, INIA
publishDate 2019
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392019000200181
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