Combining Ability for Morpho-Agronomic Traits in Ornamental Pepper

Ferreira, K. T. C.; Rêgo, Maílson Monteiro do; Rêgo, Elizanilda Ramalho do; Nascimento, Naysa Flávia Ferreira do; Lima, José Ayron Moraes de

doi:10.17660/actahortic.2015.1087.22

Cited by 11 publications

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“…Nascimento et al (2011) and Neto et al (2014) when working with ornamental pepper found results similar to this paper's, indicating for selection genotypes that presented the highest mean values for this trait. This character is important in the selection of genotypes since the stem diameter must be large enough to support the weight of the plant and the fruits (Ferreira et al, 2015).…”

Section: Discussionmentioning

confidence: 99%

Research Article Genetic diversity among accessions of Capsicum annuum L. through morphoagronomic characters

Pessoa¹,

RÃago²,

Carvalho³

et al. 2018

Genet. Mol. Res.

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Genetic variability among pepper genotypes is essential in obtaining hybrid combinations with greater heterotic effect and in obtaining superior strains. This work's goal was to evaluate the genetic diversity between accessions of Capsicum annuum L., indicating the selection of promising individuals for ornamental purposes. The experiment was carried out in at the Plant Biotechnology Laboratory of the Center of Agricultural Sciences, Federal University of Paraíba. The experiment was conducted in a completely randomized design with 16 treatments and eight replications. The plants were evaluated for 28 morphoagronomic traits. Data were submitted to analysis of variance and grouped according to Scott and Knott's test at 1% probability. The Tocher grouping was performed based on Mahalanobis distance and analysis of canonical variables was performed with graphical dispersion of the accessions. All variables were significant by the F test (p=0.01) and presented high heritability and a CVg/CVe ratio higher than 1.0 for most traits, indicating genetic divergence between accessions. In keeping with the Scott-Knott's test (p=0.01), the accessions were grouped into two to eight classes, varying according to the character. The of Tocher optimization method separated the accessions into five distinct groups. There is phenotypic divergence between the accessions of Capsicum annuum L. which can be used in ornamental peppers' breeding programs. Only the number of stamens trait presented a heritability value (65.81%) lower than 70%. The characters that most contributed to divergence among the accessions were fresh fruit mass, stem diameter, widest fruit diameter and fruit weight. The accessions UFPB001, UFPB004, UFPB45, UFPB77.3, UFPB099, UFPB134, UFPB390 and Calypso are designated as potential accessions for ideal ornamental pepper plant with vigorous seedling, small port, large flowers and small fruits. Ornamental pepper accessions with larger anthers are indicated for selection, for facilitating the breeder's work during flower emasculations for crossings.

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Section: Discussionmentioning

confidence: 99%

Research Article Genetic diversity among accessions of Capsicum annuum L. through morphoagronomic characters

Pessoa¹,

RÃago²,

Carvalho³

et al. 2018

Genet. Mol. Res.

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“…The UFPB001 parents had a higher concentration of recessive alleles for AL, with a value of 0.05 (Table 3 and Figure 1f (Nascimento et al, 2012, Silva Neto et al, 2014, Ferreira et al, 2015. In addition to the previously cited authors, Santos et al (2013), Rêgo et al (2015) and Silva et al (2017), emphasized the importance of the flower length and width variables in selection of ornamental peppers in pots.…”

Section: Resultsmentioning

confidence: 81%

“…In recent years, several papers have also reported that heritability in the narrow sense is involved in the determination of quantitative characters of ornamental peppers (Santos et al, 2012, Santos et al, 2004, Silva Neto et al et al 2015Fortunato et al 2015;Rêgo et al 2015 andSilva et al 2017). Ferreira et al (2015) and Fortunato et al (2015) determined that only the additive gene effects determine the number of stamens and corolla length traits. On the other hand, Ferreira et al (2015) determined that the number of petals is determined, for the most part, by dominant effects.…”

Section: Resultsmentioning

confidence: 99%

Inheritance of flower traits in ornamental pepper

et al. 2018

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Diallel crosses provide estimates of useful parameters in the selection of parents for hybridization. They also help in understanding the gene action behind the determination of characters of interest. The objective of this study was to determine the genetic control of flower traits in ornamental pepper based on a complete diallel with parents F1’s and reciprocal crosses. The experiment was conducted in a greenhouse at Laboratório de Biotecnologia Vegetal, Centro de Ciências Agrárias, Universidade Federal da Paraíba (CCA-UFPB). Seven accessions of ornamental pepper belonging to the CCA-UFPB Germplasm Bank UFPB001, UFPB004, UFPB77.3, UFPB099, UFPB134, UFPB137 and UFPB390 were used. The morphological analysis was performed on following quantitative Capsicum descriptors: days for flowering (DFL), flower diameter (FD), petal length (PL), number of petals (NP), number of stamens (NS), anther length (AL) and fillet length (FL). The data were previously submitted to analysis of variance and then to diallel analysis. All evaluated traits were adequate to the additive-dominant model. There are possibilities of genetic gains in breeding programs, for the NP, NS, AL and FL in ornamental peppers.

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“…Rêgo (2016, 2018) related that pepper could be grown in either pots or gardens, with small plants being recommended for cultivation in pots and large ones for exterior environments as gardens. In addition, ornamental pepper for growth in pots should have small leaves, which turns flowers and fruits more visible, making potted pepper plants more attractive to the consumer (Ferreira et al 2015).…”

Section: Gardner and Eberhartmentioning

confidence: 99%

“…The ornamental use of pepper plants increased in the last years and for this particular use, plants need to be short and have a small canopy (Silva Neto et al 2014, Pessoa et al 2018. Other characteristics such as fast-growth and increased postharvest life should be selected in breeding programs for ornamental purpose (Rêgo et al 2010, Segatto et al 2013, Nascimento et al 2015 An Acad Bras Cienc (2019) 91(4) e20180379 2 | 16…”

Section: Introductionmentioning

confidence: 99%

Potential of pepper plant accessions for ornamental purposes using diallel analysis

Pessoa

Rêgo

Carvalho

et al. 2019

An. Acad. Bras. Ciênc.

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The genus Capsicum is cultivated in various parts of the world, with C. annuum showing high diversity and potential for ornamental purposes and genetic improvement. The aim of this work was to evaluate the combining ability and heterosis of seedling and plant traits in accessions of ornamental pepper and their hybrids. Seven accessions of C. annuum were handcrossed and twelve quantitative plant traits were evaluated. The data were subjected to analysis of variance, the Scott-Knott test and diallel analysis using Griffing's method I (fixed model). Heterosis and its components were also determined. Non-additive effects were found for seedling height, cotyledonous leaf length and width; stem diameter and chlorophyll b content. All other traits showed predominance of additive effects. Heterosis effects were found for some hybrids and UFPB134 x UFPB137, UFPB134 x UFPB390, UFPB134 x UFPB004 and UFPB099 x UFPB004 showed seedlings that are more vigorous.

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Combining Ability for Morpho-Agronomic Traits in Ornamental Pepper

Cited by 11 publications

References 0 publications

Research Article Genetic diversity among accessions of Capsicum annuum L. through morphoagronomic characters

Research Article Genetic diversity among accessions of Capsicum annuum L. through morphoagronomic characters

Inheritance of flower traits in ornamental pepper

Potential of pepper plant accessions for ornamental purposes using diallel analysis

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