Research Article

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Biofortification; Diallel; Phaseolus vulgaris; Plant breeding

The objectives of this study were to select promising common bean populations for high iron and zinc contents (FeC and ZnC), seed yield and 100-seed weight, to study the genetic control of these traits and to select parents for high FeC and ZnC based on a diallele analysis. Fifteen populations were obtained from crosses among six parents selected for high FeC and ... more

P.R.C. Di Prado; L.C. Faria; T.L.P.O. Souza; L.C. Melo; P.G.S. Melo; H.S. Pereira
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Diallel; Edaphoclimatic adaptation; Gene effects; Inheritance; Zea mays

In Brazil, using combining ability of popcorn genotypes to achieve superior hybrids has been unsuccessful because the local genotypes are all members of the same heterotic group. To overcome this constraint, 10 lines (P1 to P10) with different adaptations to tropical or temperate edaphoclimatic environments were used to obtain 45 F1 hybrids in a complete ... more

V.Q.R. da Silva; A.Tdo Amaral Júnior; L.S.A. Gonçalves; S.P.Freitas Júnior; L.S. Candido; C. Vittorazzi; L.M. Moterle; R.A. Vieira; C.A. Scapim
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Additive effect; Biomass; Diallel; Hybrids; Quality traits

Elephant grass is a tropical forage plant widely distributed throughout Brazil. It was first exclusively used in the livestock sector as cattle feed. The grass is characterized by its high productivity and photosynthetic capacity and is considered as an alternative source of renewable energy. Here, we estimated the general combining ability of the parents and specific combining ability of ... more

R.F. Daher; L.B. Souza; G.A. Gravina; J.C. Machado; H.C.C. Ramos; V.Q.R. Silva; B.R.S. Menezes; L.S.A. Schneider; M.L.F. Oliveira; R.D. Gottardo
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Diallel; Plant resistance; Spodoptera frugiperda; Zea mays

The fall armyworm, Spodoptera frugiperda, is the pest that causes the greatest economic losses for both common corn and popcorn crops, and the use of resistant plant genotypes is an important tool for integrated pest management. The goal of the present study was to evaluate the damage caused by S. frugiperda on single-cross popcorn hybrids under field conditions ... more

N.C.S. Crubelati-Mulati; C.A. Scapim; F.A. Albuquerque; A.T.Amaral Júnior; M. Vivas; M.A. Rodovalho
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Diallel; Gene action; Genotypes; Morphological traits

We conducted a 5 x 5 complete diallel cross experiment in bread wheat (Triticum aestivum) with the genotypes 6309, Chkwal-50, Dhrabi, Bhkhar-02, and FS-08. Our objective was to evaluate the type of gene action and the general and specific combining abilities required for various morphological traits in wheat. The results of analysis of variance revealed highly significant ... more

M. Shehzad; S.B. Hussain; M.K. Qureshi; M. Akbar; M. Javed; H.M. Imran; S.A. Manzoor
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Diallel; Hybridization; Plant breeding

Pepper has considerable genetic diversity and versatility. Knowledge of the genetic control of traits in peppers is of great importance for breeding programs given the large variety of types, sizes, colors and flavors. To this end, we examined the inheritance of seedling and plant traits in ornamental pepper (Capsicum annuum). The experiment was conducted ... more

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Diallel; Puccinia polysora; Rust; Zea mays var. everta

The selection of southern rust-resistant genotypes caused by Puccinia polysora (Pucciniaceae) is considered an efficient way to control this disease, which causes high crop losses in popcorn. To help choose adequate cultivars, we examined the combining ability of lines and the agronomic performance of popcorn hybrids for rust resistance. Eight S7 ... more

K.F.M. Schmitt; V.J. Lima; A.Tdo Amaral Júnior; J.S. Santos; G.S. Mafra; M. Vivas; S.H. Kamphorst; Y.P. Souza; F.T. Oliveira; F.R.A. Ferreira; J.M.S. Vivas
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Genetic dissimilarity; Genetic purity; Microsatellite markers; Mixture of cultivars; Phaseolus vulgaris; Simple sequence repeat

The aim of this study was to evaluate genetic divergence in the ‘Carioca’ (beige with brown stripes) common bean cultivar used by different institutions and in 16 other common bean cultivars used in the Rede Cooperativa de Pesquisa de Feijão (Cooperative Network of Common Bean Research), by using simple sequence repeats associated with agronomic traits that are highly distributed in the common ... more

J.S. Veloso; W. Silva; L.R. Pinheiro; J.Bdos Santos; N.S. Fonseca; M.P. Euzebio
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Genetic component; Heritability; Phaseolus vulgaris; Plant breeding; Primary component

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 ... more

J.G. Lima; M.A.P. Ramalho; J.G. Lima; M.A.P. Ramalho; J.G. Lima; M.A.P. Ramalho
10/17/2016
Centroid method; HMRPGV method; Phaseolus vulgaris

The common bean, Phaseolus vulgaris, is predominantly grown on small farms and lacks accurate genotype recommendations for specific micro-regions in Brazil. This contributes to a low national average yield. The aim of this study was to use the methods of the harmonic mean of the relative performance of genetic values (HMRPGV) and the centroid, for ... more

A.M. Corrêa; M.I.S. Pereira; H.K.A. de Abreu; T. Sharon; C.L.P. de Melo; M.A. Ito; P.E. Teodoro; L.L. Bhering

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