Evaluation of seed physiological quality of papaya elite hybrids, their reciprocal crosses and parents

Detalhes bibliográficos
Autor(a) principal: Macedo,Célia Maria Peixoto de
Data de Publicação: 2013
Outros Autores: Pereira,Messias Gonzaga, Cardoso,Deisy Lúcia, Silva,Roberto Ferreira da
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Journal of Seed Science
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2317-15372013000200008
Resumo: This study aimed to evaluate the physiological quality of seeds of three hybrid combinations and their reciprocals, as well as the selfed parents, and to estimate genetic parameters associated with seed quality, and possible reciprocal effects. The experiment used F1 hybrid papaya seeds and their reciprocal crosses between JS12 and Sunrise Solo 72/12, Sekati and Waimanalo, and the seeds of the parents and two varieties, totaling 12 treatments in a completely randomized design with four replications. Weight of 1,000 seeds, germination, seedling fresh weight and seedling dry weight, first count, speed of germination and seedling emergence were determined. There was no xenia effect for weight of 1,000 seeds and seedling fresh weight. The reciprocal effect was not expressed for germination and seedling emergence, while for the other traits, it was not expressed only for JS12 x Sekati. Differences among hybrids and their parents occurred as a result of the action of pollen in the crosses, and justified by early heterosis. The most sensitive vigor tests to discriminate differences in performance of hybrids and their reciprocals were speed of germination and seedling fresh weight. There were high magnitudes of the estimates for the genotypic determination coefficient for most of the evaluated variables, except for seedling fresh weight.
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spelling Evaluation of seed physiological quality of papaya elite hybrids, their reciprocal crosses and parentsCarica papaya Lmaternal effectreciprocal effectearly heterosisgenetic parametersThis study aimed to evaluate the physiological quality of seeds of three hybrid combinations and their reciprocals, as well as the selfed parents, and to estimate genetic parameters associated with seed quality, and possible reciprocal effects. The experiment used F1 hybrid papaya seeds and their reciprocal crosses between JS12 and Sunrise Solo 72/12, Sekati and Waimanalo, and the seeds of the parents and two varieties, totaling 12 treatments in a completely randomized design with four replications. Weight of 1,000 seeds, germination, seedling fresh weight and seedling dry weight, first count, speed of germination and seedling emergence were determined. There was no xenia effect for weight of 1,000 seeds and seedling fresh weight. The reciprocal effect was not expressed for germination and seedling emergence, while for the other traits, it was not expressed only for JS12 x Sekati. Differences among hybrids and their parents occurred as a result of the action of pollen in the crosses, and justified by early heterosis. The most sensitive vigor tests to discriminate differences in performance of hybrids and their reciprocals were speed of germination and seedling fresh weight. There were high magnitudes of the estimates for the genotypic determination coefficient for most of the evaluated variables, except for seedling fresh weight.ABRATES - Associação Brasileira de Tecnologia de Sementes2013-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2317-15372013000200008Journal of Seed Science v.35 n.2 2013reponame:Journal of Seed Scienceinstname:Associação Brasileira de Tecnologia de Sementes (ABRATES)instacron:ABRATES10.1590/S2317-15372013000200008info:eu-repo/semantics/openAccessMacedo,Célia Maria Peixoto dePereira,Messias GonzagaCardoso,Deisy LúciaSilva,Roberto Ferreira daeng2013-06-21T00:00:00Zoai:scielo:S2317-15372013000200008Revistahttp://www.scielo.br/scielo.php?script=sci_serial&pid=2317-1537&lng=en&nrm=isohttps://old.scielo.br/oai/scielo-oai.php||abrates@abrates.org.br2317-15452317-1537opendoar:2013-06-21T00:00Journal of Seed Science - Associação Brasileira de Tecnologia de Sementes (ABRATES)false
dc.title.none.fl_str_mv Evaluation of seed physiological quality of papaya elite hybrids, their reciprocal crosses and parents
title Evaluation of seed physiological quality of papaya elite hybrids, their reciprocal crosses and parents
spellingShingle Evaluation of seed physiological quality of papaya elite hybrids, their reciprocal crosses and parents
Macedo,Célia Maria Peixoto de
Carica papaya L
maternal effect
reciprocal effect
early heterosis
genetic parameters
title_short Evaluation of seed physiological quality of papaya elite hybrids, their reciprocal crosses and parents
title_full Evaluation of seed physiological quality of papaya elite hybrids, their reciprocal crosses and parents
title_fullStr Evaluation of seed physiological quality of papaya elite hybrids, their reciprocal crosses and parents
title_full_unstemmed Evaluation of seed physiological quality of papaya elite hybrids, their reciprocal crosses and parents
title_sort Evaluation of seed physiological quality of papaya elite hybrids, their reciprocal crosses and parents
author Macedo,Célia Maria Peixoto de
author_facet Macedo,Célia Maria Peixoto de
Pereira,Messias Gonzaga
Cardoso,Deisy Lúcia
Silva,Roberto Ferreira da
author_role author
author2 Pereira,Messias Gonzaga
Cardoso,Deisy Lúcia
Silva,Roberto Ferreira da
author2_role author
author
author
dc.contributor.author.fl_str_mv Macedo,Célia Maria Peixoto de
Pereira,Messias Gonzaga
Cardoso,Deisy Lúcia
Silva,Roberto Ferreira da
dc.subject.por.fl_str_mv Carica papaya L
maternal effect
reciprocal effect
early heterosis
genetic parameters
topic Carica papaya L
maternal effect
reciprocal effect
early heterosis
genetic parameters
description This study aimed to evaluate the physiological quality of seeds of three hybrid combinations and their reciprocals, as well as the selfed parents, and to estimate genetic parameters associated with seed quality, and possible reciprocal effects. The experiment used F1 hybrid papaya seeds and their reciprocal crosses between JS12 and Sunrise Solo 72/12, Sekati and Waimanalo, and the seeds of the parents and two varieties, totaling 12 treatments in a completely randomized design with four replications. Weight of 1,000 seeds, germination, seedling fresh weight and seedling dry weight, first count, speed of germination and seedling emergence were determined. There was no xenia effect for weight of 1,000 seeds and seedling fresh weight. The reciprocal effect was not expressed for germination and seedling emergence, while for the other traits, it was not expressed only for JS12 x Sekati. Differences among hybrids and their parents occurred as a result of the action of pollen in the crosses, and justified by early heterosis. The most sensitive vigor tests to discriminate differences in performance of hybrids and their reciprocals were speed of germination and seedling fresh weight. There were high magnitudes of the estimates for the genotypic determination coefficient for most of the evaluated variables, except for seedling fresh weight.
publishDate 2013
dc.date.none.fl_str_mv 2013-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2317-15372013000200008
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2317-15372013000200008
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S2317-15372013000200008
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv ABRATES - Associação Brasileira de Tecnologia de Sementes
publisher.none.fl_str_mv ABRATES - Associação Brasileira de Tecnologia de Sementes
dc.source.none.fl_str_mv Journal of Seed Science v.35 n.2 2013
reponame:Journal of Seed Science
instname:Associação Brasileira de Tecnologia de Sementes (ABRATES)
instacron:ABRATES
instname_str Associação Brasileira de Tecnologia de Sementes (ABRATES)
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reponame_str Journal of Seed Science
collection Journal of Seed Science
repository.name.fl_str_mv Journal of Seed Science - Associação Brasileira de Tecnologia de Sementes (ABRATES)
repository.mail.fl_str_mv ||abrates@abrates.org.br
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