Diversidade genética de acessos de feijão comum por caracteres agronômicos

Cabral, Pablo Diego Silva; Soares, Taís Cristina Bastos; Lima, Andreia Barcelos de Passos; Alves, Diogo de Souza; Nunes, José Arcanjo

doi:10.1590/s1806-66902011000400011

Cited by 32 publications

(37 citation statements)

References 15 publications

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“…Therefore, the agronomic performance of the common bean genotypes was not the same for both growing seasons, corroborating with previous studies reported by Cabral et al (2011), Moura et al (2013), Ribeiro et al (2014), and Mambrin et al (2015). Preliminary studies also found a significant genotype x environment interaction for zinc concentration in grains of common bean genotypes (Silva et al, 2012;Hossain et al, 2013).…”

Section: Discussionsupporting

confidence: 91%

Genetic dissimilarity of common bean lines for agronomic and biofortification traits

Maziero¹,

Ribeiro²,

Casagr³

2017

Genet. Mol. Res.

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ABSTRACT. The evaluation of the genetic dissimilarity of common bean lines obtained by the breeding program is significant to identify duplicate accessions, to select superior lines, and to plan new hybrid combinations. The objectives of this study were to evaluate the genetic dissimilarity of common bean genotypes for agronomic and mineral biofortification traits, select superior lines, and identify promising hybrid combinations for biofortification programs. For this purpose, 169 common bean genotypes (F 6:8 inbred lines and parental cultivars) were evaluated in two experiments conducted in a simple lattice design in Santa Maria-RS, Brazil. The following agronomic traits were evaluated: insertion of the first pod, insertion of the last pod, cycle, mass of 100 grains, grain yield, and concentrations of potassium, phosphorus, zinc, and copper in grains. The genotypes assessed presented genetic variability for all traits, except for copper concentration in grains. The traits that showed the highest contribution to the genetic dissimilarity were the concentrations of phosphorus, potassium, and zinc in grains. In cluster analyses, six groups by principal components and 33 groups by the Tocher optimization method were identified. These methods partially agreed in the formation of different groups of common bean genotypes. Controlled crossings between the lines 17 and 162 with lines of groups XX, XXI, XXIV, and XXXIII are recommended to obtain recombinants with high grain yield and biofortified for phosphorus, potassium, and zinc.

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Section: Discussionsupporting

confidence: 91%

Genetic dissimilarity of common bean lines for agronomic and biofortification traits

Maziero¹,

Ribeiro²,

Casagr³

2017

Genet. Mol. Res.

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“…Adotou-se o delineamento de blocos ao acaso, com três repetições, onde as parcelas experimentais foram compostas de quatro fileiras de 4m de comprimento, com espaçamento de 0,5m e densidade de semeadura de 10 sementes por metro, de acordo com CABRAL et al (2011), analisando apenas a área útil.…”

Section: Methodsunclassified

Variabilidade genética de germoplasma tradicional de feijoeiro comum na região de Cáceres-MT

et al. 2016

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“…Because of the importance for crop improvement, studies on the genetic diversity have been carried out in different crops such as guava (Pessanha et al, 2011), common bean (Cabral et al, 2011) and coffee (Martins et al, 2016). A number of genetic divergence studies have also been carried out with different accessions of papaya (Carica papaya L.) (Ramos et al, 2011;Quintal et al, 2012;Oliveira et al, 2011;Lucena and Dantas, 2015).…”

Section: Introductionmentioning

confidence: 99%

Genetic diversity among papaya accessions

Silva¹,

Nascimento²,

Ferreira³

et al. 2017

Afr. J. Agric. Res.

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Genetic diversity studies provide fundamental information for characterization, conservation and utilization of available genetic resources in plant genetic improvement programs. To evaluate the genetic divergence among papaya accessions, 17 morphoagronomic variables from 59 accessions of the active germplasm bank were evaluated in an experiment at Santa Teresinha Farm, belonging to Caliman Agrícola S/A, in Linhares-ES, Brazil. The experiment was conducted in a randomized block design with two replicates. The divergence between the accessions was estimated using the Tocher optimization method and the agglomerative hierarchical approach based on the Unweighted Pair-Group Method Using an Arithmetic Average. (UPGMA). There was significant difference for all the variables evaluated, showing variability among the accessions. The variables plant height, first fruit insertion height, greatest thickness of fruit pulp, fruit diameter, and fruit length had heritability above 80%, indicating expressive gains in the simple process of selection. Genetic variability was found among the accessions, and Americano, short-peduncle-STZ-03 and Califlora 209 were the most divergent. The optimization methods Tocher and hierarchical based on UPGMA were partially concordant for the formation of heterotic groups of papaya accessions. The variables fruit mass, fruit diameter and plant height contributed the most to the genetic diversity.

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Diversidade genética de acessos de feijão comum por caracteres agronômicos

Cited by 32 publications

References 15 publications

Genetic dissimilarity of common bean lines for agronomic and biofortification traits

Genetic dissimilarity of common bean lines for agronomic and biofortification traits

Variabilidade genética de germoplasma tradicional de feijoeiro comum na região de Cáceres-MT

Genetic diversity among papaya accessions

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