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
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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
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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
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Coffee cultivars; genetic breeding; Genetic divergence; Germplasm evaluation; Molecular markers

Brazil is the world largest producer and exporter of Coffea arabica. In this country, numerous breeding programs have generated a great multiplicity of cultivars with expressive productivity that are adapted to the different regions. Evaluating genetic diversity is critical since it provides parameters for defining breeding strategies. We estimated the ... more

C.R. Macedo; S.M. de Godoy; E.A. Ruas; B.D. Góes; C.L. Chaves; C.F. Ruas; T. Sera; G.H. Sera; P.M. Ruas
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CABMV; genetic breeding; Genetic diversity; Germplasm characterization; Passion fruit; Resistance
C.B.M. Cerqueira-Silva
11/02/2008
CABMV; Passion fruit; Passion fruit woodiness virus; susceptibility; tolerance; virology

Productivity of ‘yellow’ passion fruit (Passiflora edulis Sims. f. flavicarpa O. Deg.) is reduced by infection with Cowpea aphid-borne mosaic virus (CABMV). We examined resistance in 72 yellow passion fruit plants grown from open-pollinated commercial seed. Plants were mechanically inoculated with CABMV virus and maintained in the field in order to select ... more

C.B.M. Cerqueira-Silva; C.N. Moreira; A.R. Figueira; R.X. Corrêa; A.C. Oliveira
09/28/2010
Passiflora cacaoensis; Passiflora edulis; Passion fruit

We tested four C-banding protocols to obtain heterochromatic bands in the passion fruit species Passiflora edulis and P. cacaoensis (Passifloraceae). Three of these protocols had been previously described. The three published protocols were not adequate to obtain C-bands in these species. An adapted protocol demonstrated heterochromatin distribution in metaphasic ... more

A.J.C. Viana; M.M. Souza
05/06/2016
Abiotic stress; Breeding; Manihot esculenta Crantz; Post-harvest losses; REML/BLUP

Tolerant varieties can effectively control post-harvest physiological deterioration (PPD) of cassava, although knowledge on the genetic variability and inheritance of this trait is needed. The objective of this study was to estimate genetic parameters and identify sources of tolerance to PPD and their stability in cassava accessions. Roots from 418 cassava accessions, grown in four ... more

M.T. Venturini; L.R. Santos; C.I.A. Vildoso; V.S. Santos; E.J. Oliveira; M.T. Venturini; L.R. Santos; C.I.A. Vildoso; V.S. Santos; E.J. Oliveira

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