Características morfo-agronômicas de cultivares crioulas de feijão comum em dois anos de cultivo

Coelho, Cileide Maria Medeiros; Zílio, Marcio; Souza, Clóvis Arruda; Guidolin, Altamir Frederico; Miquelluti, David José

doi:10.5433/1679-0359.2010v31n4sup1p1177

Cited by 24 publications

(32 citation statements)

References 6 publications

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“…Thus, it is possible to identify the most promising genotypes for genetic improvement and also benefit farmers, enabling the rational use of these genotypes in family farming (Coelho et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Genetic variability of garlic accessions as revealed by agro-morphological traits evaluated under different environments

Hoogerheide¹,

Filho

Vencovsky³

et al. 2017

Genet. Mol. Res.

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Section: Introductionmentioning

confidence: 99%

Genetic variability of garlic accessions as revealed by agro-morphological traits evaluated under different environments

Hoogerheide¹,

Filho

Vencovsky³

et al. 2017

Genet. Mol. Res.

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“…However, when the Tocher cluster analysis was made, using data for each environment, the genotype groups formed were different for each growth environment (Gonçalves Ceolin et al, 2007;Coelho et al, 2010). This occurs because there is a significant genotype x environment interaction for agronomic traits and, consequently, the genotypes performance differs.…”

Section: Discussionmentioning

confidence: 99%

“…Therefore, the genetic variability observed in the landraces and the genotypes developed for breeding programs requires a more detailed characterization. Genetic dissimilarity and cluster analyses have been widely used to determine the genetic variability of common bean genotypes that have been grown in a given region or country (Bonett et al, 2006;Chiorato et al, 2006;Gonçalves Ceolin et al, 2007;Elias et al, 2007;Barelli et al, 2009;Coelho et al, 2010;Freitas et al, 2011;Blair et al, 2013;Grahic et al, 2013;Gonçalves et al, 2014;Hegay et al, 2014;Sofi et al, 2014). Thus, accession duplicates are identified, and hybrid combinations are planned based on the identification of genotypes with favorable traits for selection.…”

Section: Introductionmentioning

confidence: 99%

“…The main clustering methods used to identify similarities and differences among common bean genotypes are principal components (Freitas et al, 2011;Blair et al, 2013;Grahic et al, 2013;Hegay et al, 2014;Sofi et al, 2014) and the Tocher optimization method (Bonett et al, 2006;Gonçalves Ceolin et al, 2007;Elias et al, 2007;Barelli et al, 2009;Coelho et al, 2010;Gonçalves et al, 2014). Genetic dissimilarity of common bean genotypes has been evaluated by agronomic descriptors (Bonett et al, 2006;Barelli et al, 2009;Freitas et al, 2011;Hegay et al, 2014;Sofi et al, 2014) and seed characteristics (Blair et al, 2013;Grahic et al, 2013;Gonçalves et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

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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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“…Para fazer-se uma análise do poder discriminatório dos descritores, torna-se necessário analisar a sua contribuição de forma conjunta através de procedimentos multivariados (COELHO et al, 2010;CRUZ et al, 2004). Dentre os métodos mais utilizados visando determinar a contribuição de cada variável para a divergência genética entre sub amostras estudadas, estão os métodos das variáveis canônicas e o de Singh (1981), que avaliam os indivíduos em vários aspectos (CRUZ et al, 2004).…”

Section: Características Utilizadas Na Análise Multivaridadaunclassified

Importância das características morfológicas e agronômicas no estudo da biodiversidade genética em milho

Rotili

Afférri²,

Pelúzio³

et al. 2015

Revista Verde

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Resumo: O milho, um dos cereais mais utilizados no mundo para alimentação humana e animal, é fonte de renda para várias famílias, quer seja na agricultura familiar ou em grandes propriedades. O trabalho teve como objetivo reunir resultados de pesquisas publicadas em periódicos revelando a importância relativa de características morfológicas e agronômicas da diversidade genética em milho. Devido à importância econômica e social deste cereal, a identificação de genótipos produtivos, sob condições ótimas ou de estresses, oriundos de diferentes programas de melhoramento genético, pode trazer grandes benefícios, tais como o aumento da produção e redução de insumos que reflete, em última instância, em uma diminuição de custos de produção e impactos ambientais. Neste sentido, é necessário conhecer a importância relativa de características para estudos sobre a diversidade genética, que podem auxiliar na escolha de genótipos potencialmente promissosres para as diferentes condições de cultivo. Na estimativa da importância relativa, os atributos encontrados com maior frequência nos trabalhos estudados foram: produtividade de grãos, altura de espiga, altura de planta, comprimento de espiga, diâmetro de espiga e massa de grãos. Palavras-chaves:Zea mays L.; melhoramento genético; análise multivaridada; importância relativa. Abstract:Maize is one of the most commonly used cereal in the world, as in food or feed, and it is source of income for many families). The aim of this work was reunite the results of scientific articles about the relative importance of morphological and agronomic traits on maize genetic diversity. Due to the economic and social importance of this cereal, the identification of productive genotypes under stress conditions or not, from various breeding programs, can be promote benefits such as increased production, reduction of inputs and thus with decrease of production costs and environmental impacts. In this case, it is essential to know the relative importance of the traits for the study of genetic diversity, and this results can help in choosing genotypes for use in breeding programs in different conditions. In the estimate of relative importance, the traits with more frequency in the articles were: grain yield, ear and plant height, ear length and diameter and grain weight.

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Características morfo-agronômicas de cultivares crioulas de feijão comum em dois anos de cultivo

Cited by 24 publications

References 6 publications

Genetic variability of garlic accessions as revealed by agro-morphological traits evaluated under different environments

Genetic variability of garlic accessions as revealed by agro-morphological traits evaluated under different environments

Genetic dissimilarity of common bean lines for agronomic and biofortification traits

Importância das características morfológicas e agronômicas no estudo da biodiversidade genética em milho

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