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

Cabral, Pablo Diego Silva; Soares, Taís Cristina Bastos; Lima, Andreia Barcelos Passos; Soares, Yaska Janaína Bastos; Silva, Josimar Aleixo da

doi:10.1590/s1806-66902011000100017

Cited by 49 publications

(55 citation statements)

References 15 publications

(23 reference statements)

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“…The X, Y, and Z primary components have positive and strong genetic and phenotypic correlations with grain yield (Cabral et al, 2011;Zilio et al, 2011;Ribeiro et al, 2014), an observation that was supported by the results of the current study (Table 3). However, the correlations were negative or weak between X and Y, X and Z, and Y and Z.…”

Section: Discussionsupporting

confidence: 87%

Geometry applied to breeding common beans (Phaseolus vulgaris)

Lima

Ramalho

2016

Genet. Mol. Res.

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ABSTRACT. The primary components of common bean (Phaseolus vulgaris) grain yield (W) are the number of pods (X), the number of grains per pod (Y), and the weight of the grains (Z). In 1964, Grafius suggested using geometry in plant breeding; W corresponds to the volume of a parallelepiped with three axes, X, Y, and Z. Because the cube is the largest parallelepiped by volume, maximum yield is obtained when the relative contributions of X, Y, and Z are the same. We evaluated individual plants of a 'Talismã' x 'L.59583' cross in two sowing periods. The sum of squares of deviations from the ideal plant (GI), i.e., the plant in which the X, Y, and Z contributions were the same, was estimated. Mean and variance genetic components, and genetic and phenotypic correlations between the characteristics were also estimated. Good concordance was observed in the magnitude and direction of the genetic and phenotypic correlation estimates of the paired characteristics. However, a low GI heritability (h 2 r = 6.7%) indicated that success due to selection should be small. Ninety-four progenies of 'Pérola' x 'ESAL 686' crosses were also evaluated, where X, Y, Z, and W were obtained and GI was estimated. The h 2 estimate was higher, but still low (h 2 = 39.0%). Therefore, the selection of individuals to obtain plants in which the X, Y, and Z products tend to the cube is unfeasible, because the sums of X, Y, and Z vary between individuals. In addition, the GI h 2 value was low.

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Section: Discussionsupporting

confidence: 87%

Geometry applied to breeding common beans (Phaseolus vulgaris)

Lima

Ramalho

2016

Genet. Mol. Res.

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“…In a study conducted by Ribeiro et al (2001), carioca bean genotypes showed a negative genetic correlation between the cycle and grain yield, weight of 100 grains, number of pods and grains per plant, and number of grains per legume. Cabral et al (2011) also observed a negative correlation between the yield and emergence-flowering and emergenceharvest periods. According to Rocha and Vello (1999), soybean grain yield varied with maturity cycle and cultivation location: short-cycle, semi-short-cycle and mediumcycle genotypes demonstrated greater grain yields than late-cycle varieties.…”

Section: Resultsmentioning

confidence: 78%

“…According to Cabral et al (2011), plants with a lower number of days between emergence and flowering and between flowering and physiological maturity produce a greater number of pods per plant, seeds per pod and weight of 100 seeds.…”

Section: Resultsmentioning

confidence: 99%

“…The association between the characteristics was estimated through phenotypic and genotypic trail analysis. Trail analysis consists of a study of the direct and indirect effects of independent explanatory characteristics on a principal, basic dependent variable for which the estimates are obtained using regression equations using previously standardized variables (CABRAL et al, 2011). The minimum level of significance for all of the tests was 5%.…”

Section: Methodsmentioning

confidence: 99%

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Cycle, canopy architecture and yield of common bean genotypes (Phaseolus vulgaris) in Santa Catarina State

et al. 2013

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ABSTRACT. The objective of this study was to identify the phenotypic and genotypic correlations between the plant cycle and plant habit and the effect on yield in landrace bean genotypes. The experiment was conducted in Joaçaba and Lages, Santa Catarina State for the 2008/2009 crop using 26 bean genotypes: 22 landrace and 4 commercial genotypes obtained from the UDESC. We evaluated the number of days from emergence to flowering, number of days from flowering to physiological maturity and number of days from emergence to physiological maturity in relation to the genotypes' cycle. The aerial plant architecture characteristics evaluated were the growth habit, plant habit, plant height, stem diameter, height of the first pod insertion and number of nodes on the main stem. Trail analysis showed that there was a positive correlation between the emergence-to-flowering period and yield and that the emergencephysiological maturity; flowering-physiological maturity showed a negative correlation to the yield in both locations. Therefore, short-cycle genotypes, especially those with a reduced post-flowering period, produced increased yields. The aerial plant architecture characteristics showed phenotypic and genotypic positive correlations with the yield in both environments. To increase yield, the reproductive period needs to coincide with periods of the greatest photosynthetically active radiation.

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“…Atualmente, a análise de trilha é amplamente utilizada por melhoristas de plantas, em diversas culturas como o milho (AGRAMA, 2006), o feijão (CABRAL et al, 2011), o arroz (MARCHEZAN et al, 2005, o algodão (HOOGERHEIDE et al, 2007), a soja (BÁRBARO et al, 2006) e o trigo (GONDIM et al, 2008). Estudos sobre relações entre variáveis importantes para a cultura da cana via análise de trilha também são encontrados na literatura (KANG et al, 1983;REDDY & REDDI, 1986;SUKHCHAIN & SAINI, 1997;FERREIRA et al, 2007;SILVA et al, 2009).…”

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