Herdabilidades e correlações entre caracteres de linhagens de feijão obtidas em monocultivo e em consórcio com o milho

Lana, Ângela Maria Quintão; Cardoso, Antônio Américo; Cruz, Cosme Damião

doi:10.1590/s0103-84782003000600006

Cited by 8 publications

(9 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Several works on bean crop found that the number of pods per plant is the character that contributes most to grain yield of common bean, since it presents the highest correlations with grain yield (Lana et al 2003, Cabral et al 2011. In this study, this component correlated positively and significantly with grain yield and pod yield.…”

Section: Resultssupporting

confidence: 59%

Contribution of components of production on snap bean yield

Araújo

Gravina

Marinho

et al. 2012

Crop Breed. Appl. Biotechnol.

View full text Add to dashboard Cite

show abstract

Section: Resultssupporting

confidence: 59%

Contribution of components of production on snap bean yield

Araújo

Gravina

Marinho

et al. 2012

Crop Breed. Appl. Biotechnol.

View full text Add to dashboard Cite

show abstract

“…In contrast, in this study, the allelic interaction of dominance was less important. , Melo et al (2002), Lana et al (2003), and Silva et al (2004) reported that the estimates of heritability at the mean level of progenies were of similar magnitude.…”

Section: Genetic Control Of Inflorescence In Common Beanmentioning

confidence: 84%

Genetic control of inflorescence in common bean

Guilherme¹,

Ramalho²,

Abreu³

et al. 2014

Genet. Mol. Res.

View full text Add to dashboard Cite

ABSTRACT. The number of pods per common bean plant is a primary component of grain yield, which depends on the number of flowers produced and on the flower set. Thus, a larger number of flowers per plant would increase yield. Lines with inflorescences that had a large number of flowers compared to common bean plants now under cultivation were identified. We analyzed the genetic control of this trait and its association with grain yield. The cultivar BRSMG Talismã was crossed with 2 lines, L.59583 and L.59692, which have a large number of flowers. The F 1 , F 2 , and F 3 generations were obtained. These generations were assessed together with the parents in a randomized block experimental design with 2 replications. The traits assessed included length of inflorescence, number of pods per inflorescence, number of pods per plant, number of grains per plant, 100-grain weight, and grain yield per plant. Mean genetic components and variance were estimated. The traits length of inflorescence and number of pods per inflorescence exhibited genetic control with predominance that showed an additive effect. In the 2 crosses, genetic control of grain yield and of its primary components showed that the allelic interaction of dominance was high. The wide variability in the traits assessed may be used to increase yield of the common bean plant by increasing the number of flowers on the plant.

show abstract

“…Por outro lado, as variáveis secundárias (EP, PIV, FL e MC) estão em geral correlacionadas em magnitude média a pequena e sentido contrário com a variável principal PROD, e também com as variáveis primárias P100 e NSP. Resultados semelhantes foram encontrados por Coimbra et al (1999), Collicchio et al (1997) e por Lana et al (2003), sendo que esses últimos afirmaram não existir associação entre os caracteres estatura da planta, produtividade de grãos e peso médio de mil grãos.…”

Section: Resultsunclassified

Análise de trilha do rendimento de grãos de feijoeiro (Phaseolus vulgaris L.) e seus componentes

Cabral

Soares²,

Lima³

et al. 2011

Rev. Ciênc. Agron.

View full text Add to dashboard Cite

Resumo -C i nqüenta e oito genótipos de feijoeiro (Phaseolus vulgaris L . ), sendo 32 genótipos locais, 20 genótipos provenientes da EMBRAPA e seis cultivares comerciais, foram avaliados em Alegre/ES, através da influência de oito caracteres de importância agronômica sobre a produção de grãos por unidade de área. O experimento, em blocos casualizados com três repetições, foi conduzido no período das "águas" no ano agrícola de 2008/09. O objetivo deste trabalho foi estimar os coeficientes de trilha entre os caracteres primários e secundários sobre a produtividade de grãos. Os caracteres primários foram constituídos pelo número de sementes por vagem (NSV), peso de cem grãos (P100), número de vagem por planta (NVP) e número de sementes por planta (NSP), os caracteres secundários foram: número de dias da germinação até à floração (FL), número de dias entre a emergência e a maturação de colheita (MC), estatura da planta (EP) e altura da inserção da primeira vagem (PIV). A análise do coeficiente de trilha demonstrou que o caráter primário com maior efeito direto sobre produtividade (PROD) foi NVP (1,0011), associado à alta correlação (0,754). As variáveis P100 e NSV apresentaram altos efeitos indiretos sobre NVP de 0,8848 e 0,6369, respectivamente. Observou-se um incremento em P100 e NVP em plantas de ciclo e período vegetativo curtos e uma maior altura de inserção da primeira vagem, sendo que o ponto de inserção da primeira vagem não influenciou significativamente a produtividade.Palavras-chave -Feijão. Plantas-melhoramento genético. Culturas agrícolas-rendimento.Abstract -Fifty-eight genotypes of common bean (Phaseolus vulgaris L.), being 32 local genotypes, 20 genotypes from EMBRAPA and six commercial cultivars were evaluated in Alegre/ES, through the influence of eight characters of agronomic importance to grain production by unit area. The experiment was conducted in a randomized block design with three replications in the wet period of 2008/09 crop year. This study aimed to estimate the path coefficients between the primary and secondary characters on grain yield. The primary characters were set up by the number of seeds per pod (NSV), weight of one hundred grains (P100), number of pods per plant (NVP) and number of seeds per plant (NSP) and the secondary traits were number of days from germination to flowering (FL), number of days between emergence and harvest maturity (MC), plant height (EP), height of the first pod (PIV). The analysis of the path coefficient showed that the primary character with more direct effect on yield (PROD) was NVP (1.0011), associated with high correlation (0.754). Variables P100 and NSV showed high indirect effect on NVP of 0.8848 and 0.6369, respectively. It was observed an increase in P100 and NVP in plants with short cycle and growing season and first pod height taller, and that the height of the first pod did not significantly influence productivity.

show abstract

Herdabilidades e correlações entre caracteres de linhagens de feijão obtidas em monocultivo e em consórcio com o milho

Cited by 8 publications

References 5 publications

Contribution of components of production on snap bean yield

Contribution of components of production on snap bean yield

Genetic control of inflorescence in common bean

Análise de trilha do rendimento de grãos de feijoeiro (Phaseolus vulgaris L.) e seus componentes

Contact Info

Product

Resources

About