Prediction of genetic gains from selection in Arabica coffee progenies

Prediction of genetic gains from selection in Arabica coffee progenies

Gains from selection for yield were estimated in Arabica coffee progenies carrying rust-resistance genes. The experiment in augmented block design was installed in Três Pontas, state of Minas Gerais. Three blocks were established with six plants per plot, spaced 3.50 x 0.90 m, in 96 regular (F2 progenies) and two control treatments. The plant response to rust was evaluated on a grade scale in 2008. Yield (bags per hectare) was estimated in the growing seasons 2005 to 2008. Significant differences between treatments for yield were observed in all harvests, except 2005. The presence of genetic variability among progenies allowed significant gain from selection for yield. Under the experimental conditions of this study, selection for yield can be performed in the first high-yield year, without major losses compared to genetic gain from selection for yield when based on the mean of four harvests.

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Main Authors: Oliveira,Antonio Carlos Baião de, Pereira,Antonio Alves, Silva,Felipe Lopes da, Rezende,Juliana Costa de, Botelho,César Elias, Carvalho,Gladyston Rodrigues
Format: Digital revista
Language:English
Published: Crop Breeding and Applied Biotechnology 2011
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-70332011000200002
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spelling oai:scielo:S1984-703320110002000022011-09-08Prediction of genetic gains from selection in Arabica coffee progeniesOliveira,Antonio Carlos Baião dePereira,Antonio AlvesSilva,Felipe Lopes daRezende,Juliana Costa deBotelho,César EliasCarvalho,Gladyston Rodrigues Coffea arabica genetic improvement bean yield rust resistance genetic progress Gains from selection for yield were estimated in Arabica coffee progenies carrying rust-resistance genes. The experiment in augmented block design was installed in Três Pontas, state of Minas Gerais. Three blocks were established with six plants per plot, spaced 3.50 x 0.90 m, in 96 regular (F2 progenies) and two control treatments. The plant response to rust was evaluated on a grade scale in 2008. Yield (bags per hectare) was estimated in the growing seasons 2005 to 2008. Significant differences between treatments for yield were observed in all harvests, except 2005. The presence of genetic variability among progenies allowed significant gain from selection for yield. Under the experimental conditions of this study, selection for yield can be performed in the first high-yield year, without major losses compared to genetic gain from selection for yield when based on the mean of four harvests.info:eu-repo/semantics/openAccessCrop Breeding and Applied BiotechnologyCrop Breeding and Applied Biotechnology v.11 n.2 20112011-06-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-70332011000200002en10.1590/S1984-70332011000200002
institution SCIELO
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country Brasil
countrycode BR
component Revista
access En linea
databasecode rev-scielo-br
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region America del Sur
libraryname SciELO
language English
format Digital
author Oliveira,Antonio Carlos Baião de
Pereira,Antonio Alves
Silva,Felipe Lopes da
Rezende,Juliana Costa de
Botelho,César Elias
Carvalho,Gladyston Rodrigues
spellingShingle Oliveira,Antonio Carlos Baião de
Pereira,Antonio Alves
Silva,Felipe Lopes da
Rezende,Juliana Costa de
Botelho,César Elias
Carvalho,Gladyston Rodrigues
Prediction of genetic gains from selection in Arabica coffee progenies
author_facet Oliveira,Antonio Carlos Baião de
Pereira,Antonio Alves
Silva,Felipe Lopes da
Rezende,Juliana Costa de
Botelho,César Elias
Carvalho,Gladyston Rodrigues
author_sort Oliveira,Antonio Carlos Baião de
title Prediction of genetic gains from selection in Arabica coffee progenies
title_short Prediction of genetic gains from selection in Arabica coffee progenies
title_full Prediction of genetic gains from selection in Arabica coffee progenies
title_fullStr Prediction of genetic gains from selection in Arabica coffee progenies
title_full_unstemmed Prediction of genetic gains from selection in Arabica coffee progenies
title_sort prediction of genetic gains from selection in arabica coffee progenies
description Gains from selection for yield were estimated in Arabica coffee progenies carrying rust-resistance genes. The experiment in augmented block design was installed in Três Pontas, state of Minas Gerais. Three blocks were established with six plants per plot, spaced 3.50 x 0.90 m, in 96 regular (F2 progenies) and two control treatments. The plant response to rust was evaluated on a grade scale in 2008. Yield (bags per hectare) was estimated in the growing seasons 2005 to 2008. Significant differences between treatments for yield were observed in all harvests, except 2005. The presence of genetic variability among progenies allowed significant gain from selection for yield. Under the experimental conditions of this study, selection for yield can be performed in the first high-yield year, without major losses compared to genetic gain from selection for yield when based on the mean of four harvests.
publisher Crop Breeding and Applied Biotechnology
publishDate 2011
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-70332011000200002
work_keys_str_mv AT oliveiraantoniocarlosbaiaode predictionofgeneticgainsfromselectioninarabicacoffeeprogenies
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AT rezendejulianacostade predictionofgeneticgainsfromselectioninarabicacoffeeprogenies
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