Correlations and path analysis of common bean grain yield and its primary components

Gonçalves, Manoel Carlos; Correa, Agenor Martinho; Destro, Deonisio; Ferreira, Luiz Carlos; Sobrinho, Teodorico Alves

doi:10.12702/1984-7033.v03n03a06

Cited by 19 publications

(18 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Taking these variables into consideration, Bezerra et al (2001), who evaluated cowpea and Santos et al (1995) who evaluated soybean, reported a determination coefficient of 84.32% and 100%, respectively. Gonçalves et al (2003) showed a determination coefficient of 97.5%, which is similar to that found by Cabral et al (2011) (R 2 = 95.9%), which indicates that the variables almost completely explained the basic variable in common beans.…”

Section: Resultssupporting

confidence: 77%

Phenotypic correlations and path analysis for plant architecture traits and grain production in three generations of cowpea

et al. 2016

View full text Add to dashboard Cite

RESUMOThe objective of this study was to analyze the phenotypic correlation and path analysis of traits related to plant architecture, earliness and grain yield in F 2 , RC 1 and RC 2 generations, from crosses between cowpea cultivars BRS Carijó and BR14 Mulato. Most phenotypic correlations of the examined traits were concordant in statistical significance, with approximate values among the examined generations. For the trait seed weight, significant and positive phenotypic correlations were observed in the three generations only for the trait number of secondary branches. The values of the direct effects were in agreement with the values of the phenotypic correlations, which indicate true association by the phenotypic correlation among the traits of grain yield examined. Path analysis indicated that the selection of productive plants will result in early plants and an increased number of secondary branches. In F 2, plants with shorter length of the main branch and shorter length of secondary branches can be obtained. The causal model explained 15 to 30% of the total variation in grain weight in relation to the traits examined. The analyses indicated the possibility of selecting plants with a higher and early grain yield, shorter length of primary branches and lower number of nodes, which are important variables for mechanical or semi-mechanical harvesting. Correlações fenotípicas e análise de trilha para caracteres da arquitetura da planta e produção de grãos em três gerações de feijão caupi O objetivo desse trabalho foi analisar correlações fenotípicas e análise de trilha de caracteres relacionados à arquitetura da planta, precocidade e produção de grãos em gerações F2, RC1 e RC2, provenientes do cruzamento entre as cultivares de feijão caupi BRS Carijó e BR14 Mulato. A maioria das correlações fenotípicas dos caracteres avaliados foi concordante em significância, com valores aproximados nas gerações avaliadas. Para o caráter peso de grãos, foram observadas correlações fenotípicas significativas e positivas nas três gerações apenas com o caráter número de ramos secundários. Os valores dos efeitos diretos concordaram com os valores das correlações fenotípicas, indicando verdadeira associação entre os caracteres avaliados com peso de grãos. A análise de trilha indicou que a seleção de plantas produtivas resultará em plantas precoces e de maior número de ramos secundários. Em F2, plantas com menor comprimento de ramo principal e comprimento de ramos secundários poderão ser obtidas. O modelo causal explicou de 15 a 30% da variação total de peso de grãos em relação aos caracteres avaliados. As análises indicaram a possibilidade de selecionar plantas com maior produção de grãos, precoces, com menor comprimento de ramos primários e menor núme-ro nós, que são variáveis importantes para a colheita mecânica ou semi-mecânica.

show abstract

Section: Resultssupporting

confidence: 77%

Phenotypic correlations and path analysis for plant architecture traits and grain production in three generations of cowpea

et al. 2016

View full text Add to dashboard Cite

show abstract

“…Segundo Gonçalves et al (2003), o número de vagens por planta e o número de grãos por vagem apresentam correlação positiva com o rendimento de grãos, enquanto que a massa de 100 grãos apresenta correlação negativa.…”

Section: Resultsunclassified

Contribuição dos componentes de rendimento na produtividade de genótipos crioulos de feijão (Phaseolus vulgaris L.)

Zílio¹,

Coelho²,

Souza³

et al. 2011

Rev. Ciênc. Agron.

View full text Add to dashboard Cite

Contribuição dos componentes de rendimento na produtividade de genótipos crioulos de feijão (Phaseolus vulgarisLResumo -Este trabalho teve por objetivo verificar a contribuição relativa dos componentes do rendimento para a produção final em genótipos de feijão (Phaseolus vulgaris L). O experimento foi conduzido com 26 genótipos de feijão na safra 2008/2009 nos municípios de Anchieta, Joaçaba e Lages, estado de Santa Catarina, sob delineamento experimental em blocos ao acaso com 3 repetições, onde avaliou-se os componentes do rendimento e produtividade. Foi utilizado o teste de variância univariada para determinação da variabilidade e da resposta dos genótipos aos diferentes ambientes de cultivo e os testes de Scott-Knott e Tukey para comparação das médias. As correlações foram estimadas através da análise de Trilha. Foi observada resposta diferenciada dos genótipos nos ambientes testados para todos os caracteres avaliados, com exceção da massa de 100 grãos. A seleção indireta para massa de 100 grãos para elevado rendimento de grãos não é uma boa estratégia para o progresso genético, devido aos efeitos indiretos negativos. Mas, a seleção para número de vagens por planta, número de grãos por vagem e número de lóculos por legume podem contribuir efetivamente para incrementar o rendimento de grãos. Palavras-chave -Phaseolus vulgaris L. Rendimento de grãos. Componentes da produção. Características agronômicas. Análise de trilha.Abstract -The objective this work was to verify the relative contribution between yield components and yield of the common bean landraces cultivars. The experiment was carried out with twenty six genotypes of beans under field conditions in the 2008/2009 growing season using randomized block design with three repetitions, where evaluated the yields components and yield in the in the following Santa Catarina countries: Anchieta, Joaçaba and Lages. The unvaried variance test was used and the cropping places were compared by Tukey test and, Scott-Knott test to grouping genotypes. The correlations were done by path analysis. The genotypes evaluated performed differently according to the environment where the tests were done to all characters, with exception to the mass of 100 grains. The indirect selection by mass of 100 grains to yield component isn't a good alternative to genetic progress. But, the selection to pod number per plant, grain per pod and pod loci number can contribute to yield selection.

show abstract

“…For a better understanding of the factors involved in the associations of traits, Wright (1921) (Gonçalves et al 2003, Gomes and Lopes 2005, Bárbaro et al 2006. Path analysis can therefore be made from genetic or environmental correlations (Cruz 2001).…”

Section: Introductionmentioning

confidence: 99%

Correlations and path analysis of morphological and yield traits of cactus pear accessions

Neder

Costa

Edvan

et al. 2013

Crop Breed. Appl. Biotechnol.

View full text Add to dashboard Cite

-The objectives of this study were to evaluate the relationships between morphological characteristics and fresh matter yield of cactus pear and identify their direct and indirect effects. Nineteen accessions were evaluated for the following traits: number (NCl), thickness (ThCl), length (LCl) and width (WCl) of cladodes, plant height (PH) and plant width (PW), and green matter yield (GMY), dry matter yield (DMY) and dry matter percentage (DM). The correlations were estimated, and path analysis was performed by the method proposed by Wright. GMY was strongly correlated with DMY, allowing indirect selection for this trait. NCl and ThCl had a direct effect on GMY and can be used for indirect selection or as secondary traits in the selection process. Given the lack of significant correlations between MS and DMY, it is possible to select a palm variety with high DMY and DM.

show abstract

Correlations and path analysis of common bean grain yield and its primary components

Cited by 19 publications

References 5 publications

Phenotypic correlations and path analysis for plant architecture traits and grain production in three generations of cowpea

Phenotypic correlations and path analysis for plant architecture traits and grain production in three generations of cowpea

Contribuição dos componentes de rendimento na produtividade de genótipos crioulos de feijão (Phaseolus vulgaris L.)

Correlations and path analysis of morphological and yield traits of cactus pear accessions

Contact Info

Product

Resources

About