Research Article

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05/04/2018
genetic breeding; Phaseolus vulgaris L; Productivity

The purpose of this research was to select the development of superior genotypes of snap beans adapted to edaphoclimatic conditions of the North and Northwest of Rio de Janeiro State, Brazil, applying the mixed model methodology. The test was installed and carried out in the experimental area of the Instituto Federal Fluminense (IFF), located in the municipality of ... more

D.P. Cruz; R. Moraes; L.M. Gravina; R.F. Daher; K. .C.Araújo; M. Vivas; C.Q. Silva; A.B.S. Gomes; T.R.A. Oliveira; G.A. Gravina; V.B. Silva
01/20/2018
genetic breeding; Repeatability; Saccharum spp

Sixty-eight sugarcane genotypes were evaluated to determine the number of harvests required to select new genotypes in the sugarcane belt in the state of Pernambuco, northeast Brazil. Using a random block design, the following parameters were evaluated: (i) polarizable sugars (POL) per hectare, in metric tons (TPH); (ii) culm productivity per hectare (TCH); (iii) ... more

J.A.Dutra Filho; T.C. Junior; D.E.Simoes Neto; L.S. Souto; R.Gil de Luna; A.S. Souza
12/26/2018
Bean plant; genetic breeding; Molecular marker ISSR; Variability

The common bean (Phaseolus vulgaris) is a widespread crop in Brazil of dietary and economic importance, and it is cultivated primarily through family farming. Knowledge of genetic variability in landraces and improved bean cultivars is essential to explore the existing diversity, identify superior genotypes adapted to the climatic conditions of specific ... more

P.D.S. Cabral; L.C. de Souza; G.F. da Costa; F.H.L. Silva; T.C.B. Soares
05/13/2019
Gene action; General and specific combining ability; genetic breeding; Phaseolus vulgaris

The search for genetic material of snap beans with desirable yield traits is of utmost importance for yield increase in Brazil. We evaluated 12 snap bean genotypes by diallel crosses that presented characteristics of interest, so as to select the best genitors to generate productive populations in the snap bean breeding program of the Universidade Estadual do Norte ... more

A.B.S. Gomes; T.R.A. Oliveira; G.A. Gravina; D.P. Cruz; C.Q.S.S. Sant’Anna; R.F. Daher; L.C. Araújo; K.C. Araújo; G.H.F. Oliveira; R.S. Rocha; I.M. Pereira
08/22/2019
Data standardization; genetic breeding; Genetic diversity; Zea mays subsp. saccharata

Sweet corn (Zea mays subsp. saccharata) is considered a special vegetable of high nutritional value. One of the barriers encountered by breeders has been a lack of adequate genetic variability of sweet corn, coupled with a need for appropriate methodologies to evaluate the existing genetic diversity. Our objective was to determine the best method ... more

F.J. Carvalho; G.M. Maciel; O.J. Marques; I.G. da Silva; G.D. Braga; G.R. Marquez; A.C.S. Siquieroli; L.D.C. Neto
01/31/2021
genetic breeding; Passion fruit; Passion fruit woodiness disease; REML/BLUP; Resistance

The woodiness disease induced by the Cowpea aphid-borne mosaic virus (CABMV) is regarded as a limiting factor for passion fruit production. We estimated genetic parameters for resistance and agronomic performance-related traits and selected genotypes resistant to CABMV in segregating populations of passion fruit. The experiment was a randomized-block ... more

S.C. Preisigke; A.P. Viana; E.A. Santos; P.Rdos Santos; N.R. Cavalcante; M. Ambrósio; J.Cde O. Freitas; R. Rodrigues
05/06/2016
Capsicum spp; genetic breeding; Genetic diversity; RAPD

Pepper species exhibit broad genetic diversity, which enables their use in breeding programs. The objective of this study was to characterize the diversity between the parents of different species and their interspecific hybrids using morphological and molecular markers. The parents of Capsicum annuum (UFPB-01 and -137), C. baccatum (UFPB-72), and C. chinense ( ... more

M.P.S.D. Costa; M.Mdo Rêgo; A.P.G. da Silva; E.Rdo Rêgo; P.A. Barroso; M.P.S.D. Costa; M.Mdo Rêgo; A.P.G. da Silva; E.Rdo Rêgo; P.A. Barroso
03/31/2016
Correlations between traits; Genetic divergence; Multivariate analysis; Plant breeding

The aim of this study was to use multivariate methods and Pearson and partial correlations to disregard phenotypic characteristics that contribute little to differentiation between Brachiaria ruziziensis genotypes. Eighty-one genotypes of B. ruziziensis were assessed in completely randomized blocks with three replications. Ten phenotypic characteristics were assessed: ... more

B.A. Rezende; C.B. Ribeiro; D.H.L. Teixeira; F.M.A. Gonçalves; S. Sobrinho; B.A. Rezende; C.B. Ribeiro; D.H.L. Teixeira; F.M.A. Gonçalves; S. Sobrinho; B.A. Rezende; C.B. Ribeiro; D.H.L. Teixeira; F.M.A. Gonçalves; S. Sobrinho
11/21/2016
Coffea arabica; Genetic divergence; Multivariate analysis; Plant breeding

In a coffee plantation of a coffee ‘Acaiá’ cultivar (Coffea arabica), on the Midwest of Minas Gerais in Capitólio city, a different kind of coffee tree was found (1989), possibly due to a mutation. It presented larger leaves and grains than those of conventional coffee trees and was named as “Big Coffee VL.” The aim of this study was to estimate the ... more

J.A. Silva; S.P. Carvalho; A.T. Bruzi; R.J. Guimarães; L.L. Oliveira; L.C. Simões; J.A. Silva; S.P. Carvalho; A.T. Bruzi; R.J. Guimarães; L.L. Oliveira; L.C. Simões
11/29/2017
Genetic dissimilarity; Genetic divergence; Microsatellite markers; Seedlings; Ward Method
Brazil nut tree is a species of economic importance for
the Amazon region, known for the commercialization of its almonds.
The objective of this work was to study the genetic diversity among halfsib
progenies from different Brazil nut trees present in native forest in
the municipality of Itaúba, MT, belonging to the Brazilian Amazon. In a
... more
L.D. Giustina; A.B. Baldoni; F.D. Tardin; F.S. Gregolin; H. Tonini; L.G. Neves; L.P. Ribeiro; P.E. Teodoro

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