Análise de geração para caracteres de porte e qualidade de fruto em pimenteiras ornamentais (Capsicum annuum L.).
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Tipo de documento: | Tese |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações da UFPB |
Texto Completo: | https://repositorio.ufpb.br/jspui/handle/123456789/18331 |
Resumo: | Peppers are grown all over the world, and their agribusiness has been gaining greater market share because of the wide variety of products, uses, and forms of consumption. The cultivation of ornamental peppers is a new trend in the Brazilian consumer market and has been increasing gradually throughout the world. The genetic variability existing in the genus Capsicum is basic conditions for their use in breeding programs. Knowledge of gene interaction and inheritance is essential for the definition of efficient breeding strategies. In this way, this study aimed to estimate the genetic parameters and gene effects involved in the inheritance of size, flower, and fruit characters in segregating generations of ornamental pepper (Capsicum annuum L.). The experiment was carried out in a greenhouse at the Plant Biotechnology Laboratory, Federal University of Paraíba (UFPB), Areia - PB. In the first chapter, two accessions of ornamental pepper (Capsicum annuum L.) belonging to the germplasm bank of the Federal University of Paraíba (BGH-UFPB) were used as parents: UFPB 347 and UFPB 356. In the second chapter the accesses UFPB 349 and UFPB 356 were used as parents. These parental were crossed to obtain the F1 generation, this turn, was self- fertilized to obtain generation F2. The backcrossing generations RC1 and RC2 were obtained through the crossing between F1 and the parental P1 and P2, respectively. The experimental design was completely randomized, with five plants of each parental (P1 and P2), 20 plants of the F1 generation, 90 plants of the generation F2 for crossing 347 x 356, and 88 plants for the crossing 349 x 356, and 40 plants of RC1 and RC2. We evaluated 19 quantitative characters referring to the plant, flower and fruit. The obtained data were submitted to generation analysis, and the effects of the models were submitted to the t test at the 5% and 1% level of significance. For generation analysis involving parental 347 and 356 high heritability values in the broad sense were observed for corolla length, petal diameter, fruit weight, fruit length and pericarp thickness. However, only the corolla length showed high heritability of restricted sense. The additive-dominant model (m, a, d) was adequate to explain the genetic parameters of most of the characteristics evaluated, except for anther length and dry matter content, in which the additive-dominant model was inadequate, being interpreted the complete model. In the generation analysis involving parentheses 349 and 356, only plant height and pericarp thickness showed high heritability in the broad and restricted sense. The additive-dominant model (m, a, d) was adequate to explain the genetic parameters of most characteristics. However, for the canopy diameter, petal diameter, pedicel length and dry matter content, the additive-dominant model was inadequate and the interpretation of the complete model was recommended. |
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Análise de geração para caracteres de porte e qualidade de fruto em pimenteiras ornamentais (Capsicum annuum L.).Capsicum annuum.Herança.Controle genético.CNPQ::CIENCIAS AGRARIAS::AGRONOMIAPeppers are grown all over the world, and their agribusiness has been gaining greater market share because of the wide variety of products, uses, and forms of consumption. The cultivation of ornamental peppers is a new trend in the Brazilian consumer market and has been increasing gradually throughout the world. The genetic variability existing in the genus Capsicum is basic conditions for their use in breeding programs. Knowledge of gene interaction and inheritance is essential for the definition of efficient breeding strategies. In this way, this study aimed to estimate the genetic parameters and gene effects involved in the inheritance of size, flower, and fruit characters in segregating generations of ornamental pepper (Capsicum annuum L.). The experiment was carried out in a greenhouse at the Plant Biotechnology Laboratory, Federal University of Paraíba (UFPB), Areia - PB. In the first chapter, two accessions of ornamental pepper (Capsicum annuum L.) belonging to the germplasm bank of the Federal University of Paraíba (BGH-UFPB) were used as parents: UFPB 347 and UFPB 356. In the second chapter the accesses UFPB 349 and UFPB 356 were used as parents. These parental were crossed to obtain the F1 generation, this turn, was self- fertilized to obtain generation F2. The backcrossing generations RC1 and RC2 were obtained through the crossing between F1 and the parental P1 and P2, respectively. The experimental design was completely randomized, with five plants of each parental (P1 and P2), 20 plants of the F1 generation, 90 plants of the generation F2 for crossing 347 x 356, and 88 plants for the crossing 349 x 356, and 40 plants of RC1 and RC2. We evaluated 19 quantitative characters referring to the plant, flower and fruit. The obtained data were submitted to generation analysis, and the effects of the models were submitted to the t test at the 5% and 1% level of significance. For generation analysis involving parental 347 and 356 high heritability values in the broad sense were observed for corolla length, petal diameter, fruit weight, fruit length and pericarp thickness. However, only the corolla length showed high heritability of restricted sense. The additive-dominant model (m, a, d) was adequate to explain the genetic parameters of most of the characteristics evaluated, except for anther length and dry matter content, in which the additive-dominant model was inadequate, being interpreted the complete model. In the generation analysis involving parentheses 349 and 356, only plant height and pericarp thickness showed high heritability in the broad and restricted sense. The additive-dominant model (m, a, d) was adequate to explain the genetic parameters of most characteristics. However, for the canopy diameter, petal diameter, pedicel length and dry matter content, the additive-dominant model was inadequate and the interpretation of the complete model was recommended.As pimenteiras são cultivadas mundialmente, e seu agronegócio vem ganhando maior participação no mercado devido à grande variedade de produtos, usos, e formas de consumo. O cultivo de pimenteiras ornamentais é uma nova tendência no mercado consumidor brasileiro e vem aumentando gradualmente em todo o mundo. A variabilidade genética existente no gênero Capsicum é uma condição básica para o seu uso em programas de melhoramento. O conhecimento da interação gênica e da herança é essencial para a definição de estratégias eficientes de melhoramento. Desta forma, este estudo teve como objetivo estimar os parâmetros genéticos e efeitos gênicos envolvidos na herança de caracteres de porte, flor e fruto em gerações segregantes de pimenteiras ornamentais (Capsicum annuum L.). O experimento foi desenvolvido em casa de vegetação, no Laboratório de Biotecnologia Vegetal, da Universidade Federal da Paraíba (UFPB), Areia - PB. No primeiro capítulo foram utilizados como genitores dois acessos de pimenteiras ornamentais (Capsicum annuum L.) pertencentes ao banco de germoplasma de hortaliças da Universidade Federal da Paraíba (BGH-UFPB): UFPB 347 e UFPB 356. No segundo capítulo foram utilizados como genitores os acessos UFPB 349 e UFPB 356. Estes parentais foram cruzados para a obtenção da geração F1, esta por sua vez, foi autofecundada para a obtenção da geração F2. As gerações de retrocruzamento RC1 e RC2 foram obtidas através do cruzamento entre a F1 e os parentais P1 e P2, respectivamente. O delineamento experimental foi inteiramente casualizado, sendo avaliadas cinco plantas de cada parental (P1 e P2), 20 plantas da geração F1, 90 plantas da geração F2 para o cruzamento 347 x 356, e 88 plantas para o cruzamento 349 x 356, e 40 plantas do RC1 e do RC2. Foram avaliados 19 caracteres quantitativos referentes à planta, flor e fruto. Os dados obtidos foram submetidos à análise de geração, e os efeitos dos modelos foram submetidos ao teste t em nível de 5% e 1% de significância. Para a análise de geração envolvendo os parentais 347 e 356 altos valores de herdabilidade no sentido amplo foram observados para o comprimento da corola, diâmetro das pétalas, peso do fruto, comprimento do fruto e espessura do pericarpo. Porém, apenas o comprimento da corola apresentou alta herdabilidade em sentido restrito. O modelo aditivo-dominante (m, a, d) foi adequado para explicar os parâmetros genéticos da maioria das características avaliadas, com exceção do comprimento da antera e teor de matéria seca, em que o modelo aditivo-dominante foi inadequado, sendo interpretado o modelo completo. Na análise de geração envolvendo os parentais 349 e 356, apenas a altura da planta e espessura do pericarpo apresentaram alta herdabilidade no sentido amplo e restrito. O modelo aditivo-dominante (m, a, d) foi adequado para explicar os parâmetros genéticos da maioria das características. No entanto, para o diâmetro da copa, diâmetro das pétalas, comprimento do pedicelo e teor de matéria seca o modelo aditivo-dominante foi inadequado, recomendando-se a interpretação do modelo completo.Universidade Federal da ParaíbaBrasilCiências Fundamentais e SociaisPrograma de Pós-Graduação em AgronomiaUFPBRêgo, Elizanilda Ramalho dohttp://lattes.cnpq.br/3808074316221768Fortunato, Flávia Laís Gomes2020-11-03T08:39:30Z2020-11-032020-11-03T08:39:30Z2018-08-14info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesishttps://repositorio.ufpb.br/jspui/handle/123456789/18331porAttribution-NoDerivs 3.0 Brazilhttp://creativecommons.org/licenses/by-nd/3.0/br/info:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações da UFPBinstname:Universidade Federal da Paraíba (UFPB)instacron:UFPB2020-11-04T06:10:22Zoai:repositorio.ufpb.br:123456789/18331Biblioteca Digital de Teses e Dissertaçõeshttps://repositorio.ufpb.br/PUBhttp://tede.biblioteca.ufpb.br:8080/oai/requestdiretoria@ufpb.br|| diretoria@ufpb.bropendoar:2020-11-04T06:10:22Biblioteca Digital de Teses e Dissertações da UFPB - Universidade Federal da Paraíba (UFPB)false |
dc.title.none.fl_str_mv |
Análise de geração para caracteres de porte e qualidade de fruto em pimenteiras ornamentais (Capsicum annuum L.). |
title |
Análise de geração para caracteres de porte e qualidade de fruto em pimenteiras ornamentais (Capsicum annuum L.). |
spellingShingle |
Análise de geração para caracteres de porte e qualidade de fruto em pimenteiras ornamentais (Capsicum annuum L.). Fortunato, Flávia Laís Gomes Capsicum annuum. Herança. Controle genético. CNPQ::CIENCIAS AGRARIAS::AGRONOMIA |
title_short |
Análise de geração para caracteres de porte e qualidade de fruto em pimenteiras ornamentais (Capsicum annuum L.). |
title_full |
Análise de geração para caracteres de porte e qualidade de fruto em pimenteiras ornamentais (Capsicum annuum L.). |
title_fullStr |
Análise de geração para caracteres de porte e qualidade de fruto em pimenteiras ornamentais (Capsicum annuum L.). |
title_full_unstemmed |
Análise de geração para caracteres de porte e qualidade de fruto em pimenteiras ornamentais (Capsicum annuum L.). |
title_sort |
Análise de geração para caracteres de porte e qualidade de fruto em pimenteiras ornamentais (Capsicum annuum L.). |
author |
Fortunato, Flávia Laís Gomes |
author_facet |
Fortunato, Flávia Laís Gomes |
author_role |
author |
dc.contributor.none.fl_str_mv |
Rêgo, Elizanilda Ramalho do http://lattes.cnpq.br/3808074316221768 |
dc.contributor.author.fl_str_mv |
Fortunato, Flávia Laís Gomes |
dc.subject.por.fl_str_mv |
Capsicum annuum. Herança. Controle genético. CNPQ::CIENCIAS AGRARIAS::AGRONOMIA |
topic |
Capsicum annuum. Herança. Controle genético. CNPQ::CIENCIAS AGRARIAS::AGRONOMIA |
description |
Peppers are grown all over the world, and their agribusiness has been gaining greater market share because of the wide variety of products, uses, and forms of consumption. The cultivation of ornamental peppers is a new trend in the Brazilian consumer market and has been increasing gradually throughout the world. The genetic variability existing in the genus Capsicum is basic conditions for their use in breeding programs. Knowledge of gene interaction and inheritance is essential for the definition of efficient breeding strategies. In this way, this study aimed to estimate the genetic parameters and gene effects involved in the inheritance of size, flower, and fruit characters in segregating generations of ornamental pepper (Capsicum annuum L.). The experiment was carried out in a greenhouse at the Plant Biotechnology Laboratory, Federal University of Paraíba (UFPB), Areia - PB. In the first chapter, two accessions of ornamental pepper (Capsicum annuum L.) belonging to the germplasm bank of the Federal University of Paraíba (BGH-UFPB) were used as parents: UFPB 347 and UFPB 356. In the second chapter the accesses UFPB 349 and UFPB 356 were used as parents. These parental were crossed to obtain the F1 generation, this turn, was self- fertilized to obtain generation F2. The backcrossing generations RC1 and RC2 were obtained through the crossing between F1 and the parental P1 and P2, respectively. The experimental design was completely randomized, with five plants of each parental (P1 and P2), 20 plants of the F1 generation, 90 plants of the generation F2 for crossing 347 x 356, and 88 plants for the crossing 349 x 356, and 40 plants of RC1 and RC2. We evaluated 19 quantitative characters referring to the plant, flower and fruit. The obtained data were submitted to generation analysis, and the effects of the models were submitted to the t test at the 5% and 1% level of significance. For generation analysis involving parental 347 and 356 high heritability values in the broad sense were observed for corolla length, petal diameter, fruit weight, fruit length and pericarp thickness. However, only the corolla length showed high heritability of restricted sense. The additive-dominant model (m, a, d) was adequate to explain the genetic parameters of most of the characteristics evaluated, except for anther length and dry matter content, in which the additive-dominant model was inadequate, being interpreted the complete model. In the generation analysis involving parentheses 349 and 356, only plant height and pericarp thickness showed high heritability in the broad and restricted sense. The additive-dominant model (m, a, d) was adequate to explain the genetic parameters of most characteristics. However, for the canopy diameter, petal diameter, pedicel length and dry matter content, the additive-dominant model was inadequate and the interpretation of the complete model was recommended. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-08-14 2020-11-03T08:39:30Z 2020-11-03 2020-11-03T08:39:30Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
format |
doctoralThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://repositorio.ufpb.br/jspui/handle/123456789/18331 |
url |
https://repositorio.ufpb.br/jspui/handle/123456789/18331 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.rights.driver.fl_str_mv |
Attribution-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nd/3.0/br/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nd/3.0/br/ |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Universidade Federal da Paraíba Brasil Ciências Fundamentais e Sociais Programa de Pós-Graduação em Agronomia UFPB |
publisher.none.fl_str_mv |
Universidade Federal da Paraíba Brasil Ciências Fundamentais e Sociais Programa de Pós-Graduação em Agronomia UFPB |
dc.source.none.fl_str_mv |
reponame:Biblioteca Digital de Teses e Dissertações da UFPB instname:Universidade Federal da Paraíba (UFPB) instacron:UFPB |
instname_str |
Universidade Federal da Paraíba (UFPB) |
instacron_str |
UFPB |
institution |
UFPB |
reponame_str |
Biblioteca Digital de Teses e Dissertações da UFPB |
collection |
Biblioteca Digital de Teses e Dissertações da UFPB |
repository.name.fl_str_mv |
Biblioteca Digital de Teses e Dissertações da UFPB - Universidade Federal da Paraíba (UFPB) |
repository.mail.fl_str_mv |
diretoria@ufpb.br|| diretoria@ufpb.br |
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1801842961485398016 |