Authors: A.F. Vieira, L.C.S. Almeida, L.A. Rodrigues, J.G.C. Costa, L.C. Melo, H.S. Pereira, D.A. Sanglard and T.L.P.O. Souza
The main goal of this work was to select resistance sources to common bean anthracnose by field phenotyping and DNA marker-assisted screening. Fifty-five common bean genotypes, including differential varieties, characterized resistance sources, elite lines, cultivars and controls, were evaluated in a field inoculation trial an.. Read More»
Authors: A.A.R. Vieira, A.L. Silva J�ºnior, L.C. Souza, F.D. Miranda, M.F.S. Ferreira and M.V.W. Caldeira
Senefeldera verticillata (Euphorbiaceae) is a species that exclusively occurs in the Atlantic Forest; it is used in the restoration and recovery of degraded areas and has therapeutic uses. Due to the scarcity of information on genetic patterns of this species, genetic diversity was characterized by the use of molecular markers.. Read More»
Authors: J.F. J�ºnior, J.T.V. Resende, A.A. da Silva, A. Gabriel, A.R. Zeist*, R. Favaro, D.A. Nascimento, R.A. Zeist and C.K. Camargo
The Helicoverpa armigera (Hübner) is a recent pest in Brazil, causing losses in tomato production in the Espírito Santo and Goiás states, in Brazil. A promising alternative to control this insect pest is the development of resistent tomato varieties. The breeding programs have aimed to introduce alleles of r.. Read More»
Authors: Z. S. Gon�§alves, D. R. S. da Inven�§�£o, C. A. da S. Ledo, C. F. Ferreira, E. P. Amorim
Plantains in Brazil are produced from the `Terra Maranhão’, ‘Terrinha’ and ‘D´Angola’ cultivars, which are all susceptible to black Sigatoka, weevils and nematodes. Therefore, the development of resistant plantain cultivars with agronomic characteristics aligned with market demands i.. Read More»
Authors: M.S. Moraes, A.L. Teixeira, A.R. Ramalho, M.C. EspÃ?Ândula, M.A.G FerrÃ?£o and R.B. Rocha
The ability to avoid self-pollination is a trait that evolved as a manner of reducing the deleterious effects of inbreeding in various allogamous plant species, including Coffea canephora. The aim of this study was to perform directed hybridizations to characterize the compatibility groups of superior C. canephora clones, sinc.. Read More»
Authors: MC Reis, DBO Cardoso, EG Silva J�ºnior, BC Gomes, LTG Pereira, DA Gomes and LB Sousa.
The cotton crop has notable importance for Brazilian and worldwide economy. Relationships knowledge among characters allows developing alternatives that increase the genetic progress with simultaneous selection of several traits. The use of correlation estimates for use in indirect selection helps the breeder in the selection .. Read More»
Authors: E.V. Zambiazzi, A.T. Bruzi, S.R. Guilherme, D.R. Pereira, J.G. Lima, A.M. Zuffo, F. O. Ribeiro, A.E.S. Mendes, S.H.M. Godinho and M.L.M. Carvalho
Estimating genotype x environment (GxE) parameters for quality and yield in soybean seed grown in different environments in Minas Gerais State was the goal of this study, as well as to evaluate interaction effects of GxE for soybean seeds yield and quality. Seeds were produced in three locations in Minas Gerais State (Lavras, .. Read More»
Authors: V.B. Silva, R F. Daher, M.S.B. Ara�ºjo, Y.P. Souza, S. Cassaro, B.R.S. Menezes, L.M. Gravina, A.A.C. Novo, F.D. Tardin and A.T. Amaral J�ºnior
Genetically improved cultivars of elephant grass need to be adapted to different ecosystems with a faster growth speed and lower seasonality of biomass production over the year. This study aimed to use selection indices using mixed models (REML/BLUP) for selecting families and progenies within full-sib families of elephant gra.. Read More»
Authors: C. Vittorazzi, A.T. Amaral Junior, A.G. Guimar�£es, A.P. Viana, F.H.L. Silva, G.F. Pena, R.F. Daher, I.F.S Gerhardt, G.H.F. Oliveira and M.G. Pereira
Selection indices commonly utilize economic weights, which become arbitrary genetic gains. In popcorn, this is even more evident due to the negative correlation between the main characteristics of economic importance - grain yield and popping expansion. As an option in the use of classical biometrics as a selection index, the .. Read More»
Authors: I.M. Ferreira, G.S. Vieira, T.F. Braga, T.C.F. Silva, M.M. Franco and R.C. Antunes
Molecular markers are tools used to improve genetic gains. The objective of this study was to analyze the security of alleles of molecular marker genes for characteristics of economic interest in a pure population of pigs. After the extraction of DNA from the hair of 272 Large White matrices, the allele and genotype frequency .. Read More»