Potencial genético de progênies de feijão-caupi segregantes quanto ao tipo da inflorescência

Barros, Fabio R.; Filho, Clodoaldo José da Anunciação; Rocha, M. de M.; Nunes, José Aírton Rodrigues; Damasceno‐Silva, Kaesel Jackson; Filho, F. R. Freire; Ribeiro, V. Q.

doi:10.1590/s0100-204x2011000200010

Cited by 11 publications

(4 citation statements)

References 14 publications

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“…The high heritability observed for all evaluated traits is explained by the advanced stage of the genotypes (F 7 ), with a high degree of homozygosity, as verified by Rocha et al (2009) and Barros et al (2011). The same results were obtained by Singh and Craufurd et al (2005), for NDF and NDM in cowpea, with heritability restricted to 0.86.…”

Section: Resultssupporting

confidence: 77%

Genetic Variability and Selection of Extra-Early Cowpea Progenies

et al. 2017

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-The precocity of cowpea is important because it indicates the possibility of increasing and/or stabilizing production in regions with long periods of drought. The aim of this study was to evaluate genetic variability and select extra-early cowpea progenies. Fifteen F 3:6 progenies were evaluated in 2014 while sixty-two F 7 progenies were evaluated in 2015. Two commercial cultivars were used in experiments performed in the irrigated perimeter of Baixo Acaraú, in Marco, CE. The following characteristics were evaluated: number of days for flowering (NDF), number of days for maturity (NDM), plant height (PH), pod length (PL), number of seeds per pod (NSP), number of grains per plant (NGP), weight of 100 grains (W 100 G) and total weight (M TOT ). Data were analyzed in lattice and RBD, according to the methodology of mixed models by the REML/BLUP procedure. Also, the components of variance and genetic values were estimated. Variability among progenies, high heritability and high accuracy were identified for all traits. For NDF and NDM, the progenies presented higher behavior than the controls. The lattice arrangement contributed to a greater gain with the selection of NDF, NDM, PH, NSP, NGP and W TOT

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Section: Resultssupporting

confidence: 77%

Genetic Variability and Selection of Extra-Early Cowpea Progenies

et al. 2017

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“…In cowpea (Vigna unguiculata L.), flowering shows differences from the common bean, but some plants show single and compound inflorescence, which is similar to our results. Among the traits assessed by Barros et al (2011) in cowpea, the length of the peduncle with pods was estimated, which is a trait similar to LI. F 3:4 progenies from the cross between contrasting lines for the type of inflorescence were used.…”

Section: Discussionmentioning

confidence: 99%

Genetic control of inflorescence in common bean

Guilherme¹,

Ramalho²,

Abreu³

et al. 2014

Genet. Mol. Res.

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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.

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“…All heritability values were within the confidence interval, indicating good accuracy of estimates. Moreover, the heritability of the traits associated with earliness was higher than that obtained for progenies with simple inflorescences (Cruzio, 2014), but lower than those found in studies with compound inflorescences (Barros et al, 2011;Sousa et al, 2015). The NDF, NDM, LFP, and GYPP traits showed the highest estimates of heritability.…”

Section: Degree Of Freedommentioning

confidence: 68%

Incorporation of compound inflorescences and selection of high-yielding progenies in cowpea

Bernardo

Filho

Ribeiro

et al. 2018

Pesq. agropec. bras.

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The objective of this work was to obtain cowpea (Vigna unguiculata) progenies with compound inflorescences, short peduncles, early cycle, good plant architecture, and high-yielding potential. The initial genetic material consisted of 453 F2:3 progenies, selected from ten crosses and evaluated using Federer’s augmented block design, with two controls. Of these, 60 progenies from the F4:5 and F4:6 generations were selected and assessed in two consecutive experiments, both in a 8x8 lattice design with four controls and four replicates. Early selection was efficient at fixing the evaluated traits. A wide genetic variability was detected among and within progenies. The estimated and obtained heritability and genetic gains in the F4:5 and F4:6 progenies indicate the possibility of selection of early progenies with short peduncles, compound inflorescences, and productivity similar to or greater than that of the commercial cultivars used as controls.

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Potencial genético de progênies de feijão-caupi segregantes quanto ao tipo da inflorescência

Cited by 11 publications

References 14 publications

Genetic Variability and Selection of Extra-Early Cowpea Progenies

Genetic Variability and Selection of Extra-Early Cowpea Progenies

Genetic control of inflorescence in common bean

Incorporation of compound inflorescences and selection of high-yielding progenies in cowpea

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