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Previous issue date: 2016-02-22 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / The aims of this study were to evaluate the adaptability and stability of 14 yellow passion fruit plant hybrids and to estimate the genetic components of variance and average via mixed models (REML/BLUP), estimate the phenotypic, genotypic and environmental correlations between passion fruit characteristics in three environments. The selection of genotypes was based on methods of adaptability, as produced by the harmonic mean of genetic values (MHVG); of stability, as produced by the relative performance of genetic values (PRVG); and on a joint selection for both adaptability and stability, as produced by the harmonic mean of the relative performance of the genetic values (MHPRVG). The genetic correlations were estimated (rG), phenotypic (rF) and environment (rE) for each environment. The following traits were evaluated: fruit number (FN); total cumulative productivity (TCP); fruit mass (FM); fruit length (FL); fruit diameter (FD); peel mass (PM); peel thickness (PT); pulp mass (PUM); juice yield (JY); soluble solids (SS); titratable acidity (TA); and SS/TA (RATIO). The estimates for heritability and the genetic gains in the evaluated environments were found to have good perspectives for the selection of superior genotypes, except for traits TCP, SS, and JY. There was a marked effect from the genotype x environment interaction (GxE) for most traits, except for FL, JY, SS, TA, and SS/TA. The most stable and adaptable hybrids in the evaluated environments were BRS Gigante Amarelo (BRS Yellow Giant), HFOP-09, H09-09, GP09-02, GP09-03, and BRS Sol do Cerrado (BRS Sun of Cerrado). In 88.88% of cases the estimates of genotypic correlations were higher than phenotypic in the three environments. In Len??is genotypic correlations between FN x FM, FD, PT, PM, PUM, SS and TA, differed from the other environments. In Dom Basil?o and Rio de Contas to TCP correlated positively with FM, FL, FD and PM. In all environments the selection of fruits with higher FM facilitating higher LF, FD, PM and PUM and the selection of the oval thinner peel fruit shape. In general, for correlations between traits of agronomic importance, such as FN x TCP, SS; FM x FD, PM, PUM, RATIO; FD x FM, PUM, RATIO; FL/FD x PT e FM x RATIO showed the same behavior in the three evaluation environments, except for characteristics FN x FM, FD, PT, PM, PUM e TA in Lenc?is. / Os objetivos deste trabalho foram avaliar a adaptabilidade e estabilidade de 14 h?bridos de maracujazeiro-amarelo, estimar os componentes gen?ticos de vari?ncia e de m?dia via modelos mistos (REML/BLUP), estabelecer as correla??es fenot?picas, genot?picas e ambientais entre caracter?sticas do fruto de maracujazeiro em tr?s ambientes. Foram avaliados 14 gen?tipos de maracujazeiro nos ambientes de Dom Bas?lio-BA, Rio de Contas-BA e Len??is-BA, utilizando o delineamento experimental em blocos casualizados completos, com tr?s repeti??es e nove plantas por parcela. A sele??o gen?tipos baseou-se nos m?todos da adaptabilidade dada pela m?dia harm?nica dos valores gen?ticos (MHVG), estabilidade pela performance relativa dos valores gen?ticos (PRVG) e sele??o conjunta para adaptabilidade e estabilidade dada pela m?dia harm?nica da performance relativa dos valores gen?ticos (MHPRVG). Foram estimadas as correla??o genot?pica (rG), fenot?pica (rF) e de ambiente (rE) para cada ambiente. Foram avaliados os caracteres, n?mero de frutos (NF); produtividade total acumulada (PR); massa do fruto (MF); comprimento de frutos (CF); di?metro do fruto (DF); rela??o CF/DF; massa da casca (MC); espessura de casca (EC); massa da polpa (MP); rendimento de suco (RE); s?lidos sol?veis (SS); acidez titul?vel (AT) e RATIO (SS/AT). As estimativas de herdabilidade e os ganhos gen?ticos nos ambientes avaliados apresentaram boas perspectivas para sele??o de gen?tipos superiores. Houve efeito pronunciado da intera??o GxE para a maioria dos caracteres, exceto CF, RE, SS, AT e SS/AT. De acordo com o crit?rio MHPRVG os h?bridos mais est?veis e adapt?veis nos ambientes de avalia??o foram o BRS Gigante Amarelo, HFOP-09, H09-09, GP09-02, GP09-03 e BRS Sol do Cerrado. Em 88,88% dos casos as estimativas das correla??es genot?picas foram maiores do que as fenot?picas nos tr?s ambientes. Em len??is as correla??es genot?picas foram negativas entre NF x MF, DF, EC, MC, MP, SS e AT, divergindo dos demais ambientes. Nos ambientes de Dom Bas?lio e Rio de Contas a PR correlacionou se positivamente com MF, CF, DF e MC. Em todos os ambientes a sele??o de frutos com maiores MF proporcionar? maiores CF, DF, PC e PP e pela sele??o do formato de frutos ovais menor espessura de casca. De modo geral, para as correla??es entre caracter?sticas de import?ncia agron?mica, como NF x PR, SS; MF x DF, MC, MP, RATIO; DF x MC, MP, RATIO; CF/DF x EC e MC x RATIO apresentaram o mesmo comportamento nos tr?s ambientes de avalia??o, exceto para caracter?sticas NF x MF, DF, EC, MC, MP e AT em Len??is.
| Identifer | oai:union.ndltd.org:IBICT/oai:tede2.uefs.br:8080:tede/330 |
| Date | 22 February 2016 |
| Creators | Cruz Neto, Al?rio Jos? da |
| Contributors | Passos, Adriana Rodrigues |
| Publisher | Universidade Estadual de Feira de Santana, Mestrado Acad?mico em Recursos Gen?ticos Vegetais, UEFS, Brasil, DEPARTAMENTO DE CI?NCIAS BIOL?GICAS |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Format | application/pdf |
| Source | reponame:Biblioteca Digital de Teses e Dissertações da UEFS, instname:Universidade Estadual de Feira de Santana, instacron:UEFS |
| Rights | info:eu-repo/semantics/openAccess |
| Relation | 2441563959449389152, 600, 600, 600, 600, -6971480722008537872, -1634559385931244697, 2075167498588264571 |
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