Heterose e capacidade combinatória de linhagens de pimentão (Capsicum annuum L.)

Gomide, Márcia Lídia; Maluf, Wilson Roberto; Gomes, Luíz Antônio Augusto

doi:10.1590/s1413-70542003000500006

Cited by 14 publications

(12 citation statements)

References 3 publications

(4 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The higher genetic divergence among some Murupi landraces suggests there being a possibility for a significant heterotic effect in their crossings, enhancing the agronomical characters such as sweet pepper (C. annuum) (Gomide et al, 2003).…”

Section: Resultsmentioning

confidence: 99%

Morphoagronomic characteristics display high genetic diversity in Murupi chili pepper landraces

et al. 2018

View full text Add to dashboard Cite

Murupi chili pepper is a hot Amazonian pepper that has been used as flavoring in the region, yet its diversity is unknown. This paper aims to assess the diversity in 20 landraces from Peruvian, Colombian, and Brazilian Amazon. The experiment was installed in Manaus-AM, using a randomized complete block design with three replicates and five plants per plot. Analyses of variance showed significant differences for all nine descriptors. Fruit yield showed, in average, to be 208.08 fruits per plant, tantamount to 381.44 g per plant. Given 50% of relative distances estimated by generalized Mahalanobis distances and, nearest neighbor clustering, they displayed six groups. Cluster I comprised 50% of the landraces. Clusters IV, V and VI were represented by ‘8’ (Putumayo, Colombia), ‘27’ (Yurimaguas, Peru) and ‘24’ (Jutaí-AM, Brazil), respectively. The highest yielding landrace showed to be ‘17’ (Manicoré-AM, Brazil), bearing 685.5 fruits and 1.92 kg per plant. Our findings suggest Murupi pepper may possibly be improved by selection and/or hybridization.

show abstract

Section: Resultsmentioning

confidence: 99%

Morphoagronomic characteristics display high genetic diversity in Murupi chili pepper landraces

et al. 2018

View full text Add to dashboard Cite

show abstract

“…Nesse trabalho, em geral, os cruzamentos com estimativas elevadas e favoráveis para CEC não associaram estimativas também favoráveis para CGC indicando que além dos efeitos aditivos os não-aditivos são também importantes, corroborando com os resultados de Tavares et al (1997), Patel et al (1998), Maluf et al (1999, Mamedov e Pyshnaja (2001), Doshi et al (2001) e Gomide et al (2003). Esse resultado demonstra que quando o objetivo é a obtenção de híbridos superiores a partir de um grupo de linhagens contrastantes, as estimativas de CGC são de relativa importância.…”

Section: Prodt (T Haunclassified

Capacidade combinatória de linhagens de pimentão a partir de análise dialélica multivariada

et al. 2010

Self Cite

View full text Add to dashboard Cite

RESUMO.O trabalho teve como objetivo gerar informações sobre a capacidade combinatória de linhagens de pimentão por meio da análise dialélica multivariada. Foram utilizadas 13 linhagens de pimentão previamente selecionadas com base na reação ao mosaico amarelo do pimentão, sendo oito linhagens com reação do tipo resistência e cinco com reação do tipo suscetibilidade, num dialelo 8 x 5, mais as linhagens parentais. Os 53 tratamentos foram avaliados em estufa em delineamento de blocos casualizados com quatro repetições, sendo avaliadas a produção total e precoce de frutos, massa média de frutos e altura de plantas. A partir dessas quatro características foi realizada a análise dialélica univariada e multivariada. A análise dialélica multivariada apresentou resultados semelhantes às análises dialélicas univariadas, com predominância dos efeitos não-aditivos. Estimativas favoráveis para CGC ocorreram para as características produção total e precoce de frutos nas linhagens PIX-031D-188-14-10 e PIM-013 nos grupos 1 e 2, respectivamente. As linhagens PIX-031D-171-10-10, PIX-031D-188-14-05 e PIM-004 destacaram-se para massa média de frutos e altura de plantas. As estimativas de CEC variaram bastante para as características avaliadas. A utilização da análise dialélica multivariada é uma boa opção para escolha de genitores, pois considera vários caracteres simultaneamente.Palavras-chave: Capsicum annuum, heterose, efeito gênico, seleção.ABSTRACT. Combining ability of sweet pepper lines by multivariate diallel analysis. The objective of this work was to obtain information on the combining ability of sweet pepper lines by multivariate diallel analysis. Thirteen sweet pepper lines previously selected based on the reaction of sweet pepper yellow mosaic, being eight lines with resistance reaction and five susceptible lines, were used in a 8x5 partial diallel evaluated with the parental lines. The 53 genotypes were evaluated in greenhouse trials in a randomized blocks design with four replications. The traits total fruit yield, early fruit yield, mean fruit mass and plant height were evaluated. From these four traits, a univariate and multivariate diallel analysis was performed. Multivariate diallel analysis results were similar to those from univariate diallel analyses, with a predominance of non-additive effects. Favorable estimates of the GCA occurred for total fruit yield and early fruit yield in PIX-031D-188-14-10 and PIM-013 in groups 1 and 2, respectively. The PIX-031D-171-10-10, PIX-031D-188-14-05 and PIM-004 lines were higher for mean fruit mass and plant height. The SCA estimates varied considerably for the evaluated features. Multivariate diallel analysis is a good option for parental choice, since it considers several characters simultaneously.

show abstract

“…Al respecto, Gutiérrez et al (2002) reportan que a medida que la divergencia genética de los materiales se incrementa, values of ACG than values of ACE, similar to that found by Gomide et al (2003) and contrary to that reported by Sánchez et al (2011) in squash Grey Zucchini, where he found that dominance variance was more important for the major yield components (fruits per plant, fruit length and yield per plant) than additive variance.…”

Section: Resultados Y Discusión Análisis De Varianza Combinadomentioning

confidence: 80%

Estimación de la aptitud combinatoria en poblaciones de tomate de cáscara

Montejo

Torres

Aguilar

et al. 2017

Remexca

View full text Add to dashboard Cite

ResumenEl tomate de cáscara Physalis ixocarpa Brot. es una de las especies hortícolas más importantes en México, el número limitado de híbridos y variedades mejoradas de alto rendimiento, demanda la búsqueda de genotipos con alta aptitud combinatoria general (ACG) y aptitud combinatoria especifica (ACE) para el desarrollo de variedades o híbridos superiores. El objetivo fue estimar la ACG y ACE en las poblaciones UAN CC-S2, UAN CPP-S2, UAN SE3 y la variedad Rendidora, seis cruzas directas y seis reciprocas, de acuerdo al método i modelo 2 de Griffing. Los cruzamientos fueron realizados en el otoño de 2012 y la evaluación de progenitores e híbridos en la primavera-verano de 2013, en las localidades de Saltillo y General Cepeda Coahuila, bajo un arreglo experimental de bloques al azar con tres repeticiones. El análisis estadístico combinado permitió identificar diferencias significativas en cruzas, ACG, ACE, efectos maternos (EM) y efectos recíprocos (ER), en el rendimiento y sus componentes, se identificó a las poblaciones UAN CPP-S2 y UAN SE3 con altos valores de ACG. Las tres cruzas sobresalientes fueron; UAN CC-S2 x Rendidora (26.25 t ha -1 ) y ACG (-5.718)< ACE (6.925) por lo tanto se recomienda usarla como híbrido, mientras que UAN CPP-S2 x UAN SE3 (36.52 t ha -1 ) tuvo ACG (5.718) ≈ ACE (5.457) y se sugiere su uso como población base para AbstractHusk tomato Physalis ixocarpa Brot, is one of the most important horticultural species in Mexico, the limited number of hybrids and improved high-yielding varieties, demands the search of genotypes with high general combinatory aptitude (ACG) and specific combinatory aptitude (ACE) for the development of varieties or better hybrids. The objective was to estimate the ACG and ACE in UAN CC-S2, UAN CPP-S2, UAN SE3 populations and Rendidora variety; six direct crosses and six reciprocal, according to the i method Model 2 from Griffing. The crosses were conducted in fall 2012 and the evaluation of parents and hybrids during spring-summer 2013, in the towns of Saltillo and General Cepeda Coahuila, under an experimental arrangement randomized blocks with three replications. The combined statistical analysis allowed identifying significant differences in crosses, ACG, ACE, maternal effects (EM) and reciprocal effects (ER), in yield and yield components, populations UAN CPP-S2 and UAN SE3 were identified with high values of ACG. The three crosses were outstanding; UAN CC-S2 IntroducciónEn México, el tomate de cáscara (Physalis ixocarpa Brot.) es de gran importancia, ya que es el sexto cultivo en superficie sembrada entre las hortalizas (SIAP, 2012). Se distribuye en todos los estados de la República Mexicana, desde los 10 hasta 2 600 msnm, creciendo en forma silvestre, cultivada y domesticada, su amplia distribución geográfica, ocasiona que exista amplia diversidad fenotípica y genética (formas, color, tamaño y tolerancia a factores adversos) lo que puede ser útil en los programas de mejoramiento genético (Peña y Márquez, 1990).Actualmente el rendimiento medio es de 14.362...

show abstract

Heterose e capacidade combinatória de linhagens de pimentão (Capsicum annuum L.)

Cited by 14 publications

References 3 publications

Morphoagronomic characteristics display high genetic diversity in Murupi chili pepper landraces

Morphoagronomic characteristics display high genetic diversity in Murupi chili pepper landraces

Capacidade combinatória de linhagens de pimentão a partir de análise dialélica multivariada

Estimación de la aptitud combinatoria en poblaciones de tomate de cáscara

Contact Info

Product

Resources

About